test: add unit tests for SubmitReview and ApplyLabel client methods

Add four test functions using httptest.NewServer:
- TestApplyLabel: verifies POST request path, auth header, label IDs
  in body, and cache invalidation after success
- TestApplyLabel_Error: verifies 404 error propagation
- TestSubmitReview: verifies POST path, event/body fields, and cache
  invalidation after success
- TestSubmitReview_Error: verifies 422 error propagation

Closes leeworks-agents/gitea-mobile#127

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/build.yaml

@@ -16,7 +16,7 @@ jobs:
           go-version: '1.22'
 
       - name: Run tests
-        run: go test ./...
+        run: go test -race ./...
 
   build:
     runs-on: ubuntu-latest

Dockerfile

@@ -1,7 +1,7 @@
 # Stage 1: Build
 FROM golang:1.22-alpine AS builder
 WORKDIR /app
-COPY go.mod go.sum ./
+COPY go.mod ./
 RUN go mod download
 COPY . .
 RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /gitea-mobile ./cmd/server

internal/gitea/client.go

@@ -105,8 +105,9 @@ type PullRequest struct {
 	Deletions int    `json:"deletions"`
 	CreatedAt time.Time `json:"created_at"`
 	UpdatedAt time.Time `json:"updated_at"`
-	RepoOwner string    `json:"-"` // populated after fetch
-	RepoName  string    `json:"-"` // populated after fetch
+	RepoOwner   string `json:"-"` // populated after fetch
+	RepoName    string `json:"-"` // populated after fetch
+	ReviewState string `json:"-"` // aggregated review state: "approved", "changes_requested", "pending", or ""
 }
 
 // TriageItem represents an item in the triage queue.
@@ -325,7 +326,9 @@ type PaginatedPulls struct {
 
 // ListAllIssues fetches issues across all repos in the given orgs,
 // using concurrent requests with a semaphore. Results are paginated.
-func (c *Client) ListAllIssues(ctx context.Context, token string, orgs []string, state string, page int) (PaginatedIssues, error) {
+// The label parameter filters issues by label name (empty string means no filter).
+// The repoFilter parameter narrows results to a single repo name (empty means all repos).
+func (c *Client) ListAllIssues(ctx context.Context, token string, orgs []string, state string, page int, label string, repoFilter string) (PaginatedIssues, error) {
 	if state == "" {
 		state = "open"
 	}
@@ -333,7 +336,7 @@ func (c *Client) ListAllIssues(ctx context.Context, token string, orgs []string,
 		page = 1
 	}
 
-	cacheKey := fmt.Sprintf("issues-%s-%s", state, strings.Join(orgs, ","))
+	cacheKey := fmt.Sprintf("issues-%s-%s-%s-%s", state, strings.Join(orgs, ","), label, repoFilter)
 	var allIssues []Issue
 	if cached, ok := c.getFromCache(cacheKey); ok {
 		allIssues = cached.([]Issue)
@@ -348,6 +351,17 @@ func (c *Client) ListAllIssues(ctx context.Context, token string, orgs []string,
 			allRepos = append(allRepos, repos...)
 		}
 
+		// Filter to a single repo if specified.
+		if repoFilter != "" {
+			var filtered []Repo
+			for _, r := range allRepos {
+				if r.Name == repoFilter {
+					filtered = append(filtered, r)
+				}
+			}
+			allRepos = filtered
+		}
+
 		// Fan out issue fetching across repos.
 		var mu sync.Mutex
 		sem := make(chan struct{}, c.maxConcurrent)
@@ -362,6 +376,9 @@ func (c *Client) ListAllIssues(ctx context.Context, token string, orgs []string,
 				defer func() { <-sem }()
 
 				path := fmt.Sprintf("/repos/%s/issues?state=%s&type=issues&limit=50", r.FullName, state)
+				if label != "" {
+					path += "&labels=" + label
+				}
 				resp, err := c.doRequest(ctx, token, http.MethodGet, path, nil)
 				if err != nil {
 					mu.Lock()
@@ -424,8 +441,9 @@ func (c *Client) ListAllIssues(ctx context.Context, token string, orgs []string,
 }
 
 // ListAllPullRequests fetches PRs across all repos in the given orgs.
-// Results are paginated.
-func (c *Client) ListAllPullRequests(ctx context.Context, token string, orgs []string, state string, page int) (PaginatedPulls, error) {
+// Results are paginated. The label parameter filters PRs by label name.
+// The repoFilter parameter narrows results to a single repo name.
+func (c *Client) ListAllPullRequests(ctx context.Context, token string, orgs []string, state string, page int, label string, repoFilter string) (PaginatedPulls, error) {
 	if state == "" {
 		state = "open"
 	}
@@ -433,7 +451,7 @@ func (c *Client) ListAllPullRequests(ctx context.Context, token string, orgs []s
 		page = 1
 	}
 
-	cacheKey := fmt.Sprintf("pulls-%s-%s", state, strings.Join(orgs, ","))
+	cacheKey := fmt.Sprintf("pulls-%s-%s-%s-%s", state, strings.Join(orgs, ","), label, repoFilter)
 	var allPRs []PullRequest
 	if cached, ok := c.getFromCache(cacheKey); ok {
 		allPRs = cached.([]PullRequest)
@@ -447,6 +465,17 @@ func (c *Client) ListAllPullRequests(ctx context.Context, token string, orgs []s
 			allRepos = append(allRepos, repos...)
 		}
 
+		// Filter to a single repo if specified.
+		if repoFilter != "" {
+			var filtered []Repo
+			for _, r := range allRepos {
+				if r.Name == repoFilter {
+					filtered = append(filtered, r)
+				}
+			}
+			allRepos = filtered
+		}
+
 		var mu sync.Mutex
 		sem := make(chan struct{}, c.maxConcurrent)
 		var wg sync.WaitGroup
@@ -460,6 +489,9 @@ func (c *Client) ListAllPullRequests(ctx context.Context, token string, orgs []s
 				defer func() { <-sem }()
 
 				path := fmt.Sprintf("/repos/%s/pulls?state=%s&limit=50", r.FullName, state)
+				if label != "" {
+					path += "&labels=" + label
+				}
 				resp, err := c.doRequest(ctx, token, http.MethodGet, path, nil)
 				if err != nil {
 					mu.Lock()
@@ -524,7 +556,7 @@ func (c *Client) GetTriageQueue(ctx context.Context, token string, orgs []string
 	// Collect all open issues across all pages.
 	var issues []Issue
 	for page := 1; ; page++ {
-		result, err := c.ListAllIssues(ctx, token, orgs, "open", page)
+		result, err := c.ListAllIssues(ctx, token, orgs, "open", page, "", "")
 		if err != nil {
 			return nil, fmt.Errorf("fetching issues for triage: %w", err)
 		}
@@ -537,7 +569,7 @@ func (c *Client) GetTriageQueue(ctx context.Context, token string, orgs []string
 	// Collect all open PRs across all pages.
 	var prs []PullRequest
 	for page := 1; ; page++ {
-		result, err := c.ListAllPullRequests(ctx, token, orgs, "open", page)
+		result, err := c.ListAllPullRequests(ctx, token, orgs, "open", page, "", "")
 		if err != nil {
 			return nil, fmt.Errorf("fetching PRs for triage: %w", err)
 		}
@@ -753,6 +785,49 @@ func (c *Client) ApplyLabel(ctx context.Context, token, owner, repo string, inde
 	return nil
 }
 
+// ListCollaborators fetches the list of collaborators (users with access) for a repo.
+func (c *Client) ListCollaborators(ctx context.Context, token, owner, repo string) ([]string, error) {
+	path := fmt.Sprintf("/repos/%s/%s/collaborators?limit=50", owner, repo)
+	resp, err := c.doRequest(ctx, token, http.MethodGet, path, nil)
+	if err != nil {
+		return nil, fmt.Errorf("fetching collaborators: %w", err)
+	}
+	defer resp.Body.Close()
+
+	var users []struct {
+		Login string `json:"login"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&users); err != nil {
+		return nil, fmt.Errorf("decoding collaborators: %w", err)
+	}
+
+	var logins []string
+	for _, u := range users {
+		logins = append(logins, u.Login)
+	}
+	return logins, nil
+}
+
+// AssignIssue sets the assignees on an issue.
+func (c *Client) AssignIssue(ctx context.Context, token, owner, repo string, index int64, assignees []string) error {
+	payload, err := json.Marshal(map[string]interface{}{
+		"assignees": assignees,
+	})
+	if err != nil {
+		return fmt.Errorf("marshaling assignees: %w", err)
+	}
+
+	path := fmt.Sprintf("/repos/%s/%s/issues/%d", owner, repo, index)
+	resp, err := c.doRequest(ctx, token, http.MethodPatch, path, strings.NewReader(string(payload)))
+	if err != nil {
+		return fmt.Errorf("assigning issue: %w", err)
+	}
+	resp.Body.Close()
+
+	c.InvalidateAll()
+	return nil
+}
+
 // SubmitReview submits a review on a pull request.
 func (c *Client) SubmitReview(ctx context.Context, token, owner, repo string, index int64, reviewType, body string) error {
 	payload := map[string]interface{}{
@@ -870,6 +945,74 @@ func (c *Client) RenderMarkdown(ctx context.Context, token, text string) (string
 	return string(rendered), nil
 }
 
+// Review represents a single review on a pull request.
+type Review struct {
+	ID   int64  `json:"id"`
+	Body string `json:"body"`
+	State string `json:"state"` // "APPROVED", "REQUEST_CHANGES", "COMMENT", "PENDING"
+	User  struct {
+		Login string `json:"login"`
+	} `json:"user"`
+}
+
+// GetPullReviewState fetches reviews for a PR and returns the aggregate state.
+// Priority: changes_requested > approved > pending > "" (no reviews).
+func (c *Client) GetPullReviewState(ctx context.Context, token, owner, repo string, index int64) string {
+	path := fmt.Sprintf("/repos/%s/%s/pulls/%d/reviews?limit=50", owner, repo, index)
+	resp, err := c.doRequest(ctx, token, http.MethodGet, path, nil)
+	if err != nil {
+		return ""
+	}
+	defer resp.Body.Close()
+
+	var reviews []Review
+	if err := json.NewDecoder(resp.Body).Decode(&reviews); err != nil {
+		return ""
+	}
+
+	if len(reviews) == 0 {
+		return ""
+	}
+
+	// Aggregate: last non-comment review per user wins, then pick the "worst" state.
+	userState := make(map[string]string)
+	for _, r := range reviews {
+		switch r.State {
+		case "APPROVED", "REQUEST_CHANGES":
+			userState[r.User.Login] = r.State
+		}
+	}
+
+	if len(userState) == 0 {
+		return "pending"
+	}
+
+	for _, s := range userState {
+		if s == "REQUEST_CHANGES" {
+			return "changes_requested"
+		}
+	}
+	return "approved"
+}
+
+// EnrichPullsWithReviewState fetches review state for each PR concurrently.
+func (c *Client) EnrichPullsWithReviewState(ctx context.Context, token string, pulls []PullRequest) {
+	sem := make(chan struct{}, c.maxConcurrent)
+	var wg sync.WaitGroup
+
+	for i := range pulls {
+		wg.Add(1)
+		go func(idx int) {
+			defer wg.Done()
+			sem <- struct{}{}
+			defer func() { <-sem }()
+
+			pulls[idx].ReviewState = c.GetPullReviewState(ctx, token, pulls[idx].RepoOwner, pulls[idx].RepoName, pulls[idx].Number)
+		}(i)
+	}
+	wg.Wait()
+}
+
 // priorityScore returns a numeric score for sorting (lower = higher priority).
 func priorityScore(labels []string) int {
 	for _, l := range labels {

internal/gitea/client_test.go

@@ -3,8 +3,10 @@ package gitea
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"net/http"
 	"net/http/httptest"
+	"strings"
 	"testing"
 	"time"
 )
@@ -374,3 +376,714 @@ func sortTriageQueue(queue []TriageItem) {
 		}
 	}
 }
+
+// --- Issue #122: Tests for ListOrgsAndRepos and CreateIssue ---
+
+func TestListOrgsAndRepos(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/api/v1/user/orgs":
+			orgs := []Org{
+				{Name: "org1", FullName: "Organization 1"},
+				{Name: "org2", FullName: "Organization 2"},
+			}
+			json.NewEncoder(w).Encode(orgs)
+		case "/api/v1/orgs/org1/repos":
+			repos := []Repo{
+				{ID: 1, Name: "repo-a", FullName: "org1/repo-a"},
+				{ID: 2, Name: "repo-b", FullName: "org1/repo-b"},
+			}
+			json.NewEncoder(w).Encode(repos)
+		case "/api/v1/orgs/org2/repos":
+			repos := []Repo{
+				{ID: 3, Name: "repo-c", FullName: "org2/repo-c"},
+			}
+			json.NewEncoder(w).Encode(repos)
+		default:
+			t.Errorf("unexpected request path: %s", r.URL.Path)
+			http.NotFound(w, r)
+		}
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	result, err := c.ListOrgsAndRepos(context.Background(), "test-token")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	if len(result) != 2 {
+		t.Fatalf("got %d orgs, want 2", len(result))
+	}
+	if len(result["org1"]) != 2 {
+		t.Errorf("org1 has %d repos, want 2", len(result["org1"]))
+	}
+	if len(result["org2"]) != 1 {
+		t.Errorf("org2 has %d repos, want 1", len(result["org2"]))
+	}
+	if result["org1"][0].Name != "repo-a" {
+		t.Errorf("org1 repos[0].Name = %q, want %q", result["org1"][0].Name, "repo-a")
+	}
+	if result["org2"][0].Name != "repo-c" {
+		t.Errorf("org2 repos[0].Name = %q, want %q", result["org2"][0].Name, "repo-c")
+	}
+}
+
+func TestListOrgsAndRepos_Cached(t *testing.T) {
+	orgCallCount := 0
+	repoCallCount := 0
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/api/v1/user/orgs":
+			orgCallCount++
+			json.NewEncoder(w).Encode([]Org{{Name: "org1"}})
+		case "/api/v1/orgs/org1/repos":
+			repoCallCount++
+			json.NewEncoder(w).Encode([]Repo{{ID: 1, Name: "repo1", FullName: "org1/repo1"}})
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+
+	// First call populates cache.
+	_, err := c.ListOrgsAndRepos(context.Background(), "test-token")
+	if err != nil {
+		t.Fatalf("first call: %v", err)
+	}
+
+	// Second call should use cached orgs and repos (ListOrgs and ListOrgRepos both cache).
+	_, err = c.ListOrgsAndRepos(context.Background(), "test-token")
+	if err != nil {
+		t.Fatalf("second call: %v", err)
+	}
+
+	if orgCallCount != 1 {
+		t.Errorf("org endpoint called %d times, want 1 (cached)", orgCallCount)
+	}
+	if repoCallCount != 1 {
+		t.Errorf("repo endpoint called %d times, want 1 (cached)", repoCallCount)
+	}
+}
+
+func TestCreateIssue(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			t.Errorf("expected POST, got %s", r.Method)
+		}
+		if r.URL.Path != "/api/v1/repos/owner1/repo1/issues" {
+			t.Errorf("unexpected path: %s", r.URL.Path)
+		}
+		if r.Header.Get("Authorization") != "token test-token" {
+			t.Error("missing or wrong Authorization header")
+		}
+
+		var body map[string]interface{}
+		if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+			t.Fatalf("failed to decode body: %v", err)
+		}
+		if body["title"] != "Test Issue" {
+			t.Errorf("expected title='Test Issue', got %q", body["title"])
+		}
+		if body["body"] != "Issue body here" {
+			t.Errorf("expected body='Issue body here', got %q", body["body"])
+		}
+
+		issue := map[string]interface{}{
+			"id":         1,
+			"number":     42,
+			"title":      body["title"],
+			"body":       body["body"],
+			"state":      "open",
+			"created_at": "2026-03-28T00:00:00Z",
+			"updated_at": "2026-03-28T00:00:00Z",
+		}
+		w.WriteHeader(http.StatusCreated)
+		json.NewEncoder(w).Encode(issue)
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	// Pre-populate cache to verify invalidation.
+	c.setCache("issues-org1", "should-be-invalidated")
+
+	issue, err := c.CreateIssue(context.Background(), "test-token", "owner1", "repo1", "Test Issue", "Issue body here", nil)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if issue.Title != "Test Issue" {
+		t.Errorf("issue.Title = %q, want %q", issue.Title, "Test Issue")
+	}
+	if issue.Number != 42 {
+		t.Errorf("issue.Number = %d, want 42", issue.Number)
+	}
+	if issue.RepoOwner != "owner1" {
+		t.Errorf("issue.RepoOwner = %q, want %q", issue.RepoOwner, "owner1")
+	}
+	if issue.RepoName != "repo1" {
+		t.Errorf("issue.RepoName = %q, want %q", issue.RepoName, "repo1")
+	}
+
+	// Verify cache was invalidated.
+	_, ok := c.getFromCache("issues-org1")
+	if ok {
+		t.Error("expected cache to be invalidated after CreateIssue")
+	}
+}
+
+func TestCreateIssue_WithLabels(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		var body map[string]interface{}
+		if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+			t.Fatalf("failed to decode body: %v", err)
+		}
+
+		labels, ok := body["labels"]
+		if !ok {
+			t.Error("expected labels in request body")
+		}
+		labelSlice, ok := labels.([]interface{})
+		if !ok || len(labelSlice) != 2 {
+			t.Errorf("expected 2 labels, got %v", labels)
+		}
+
+		issue := map[string]interface{}{
+			"id":         2,
+			"number":     43,
+			"title":      body["title"],
+			"body":       body["body"],
+			"state":      "open",
+			"created_at": "2026-03-28T00:00:00Z",
+			"updated_at": "2026-03-28T00:00:00Z",
+		}
+		w.WriteHeader(http.StatusCreated)
+		json.NewEncoder(w).Encode(issue)
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	issue, err := c.CreateIssue(context.Background(), "test-token", "owner1", "repo1", "Labeled Issue", "body", []int64{10, 20})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if issue.Number != 43 {
+		t.Errorf("issue.Number = %d, want 43", issue.Number)
+	}
+}
+
+// --- Issue #121: Tests for ListAllIssues and ListAllPullRequests ---
+
+// newFanOutServer creates a mock HTTP server that serves orgs, repos, issues, and PRs
+// for testing the fan-out aggregation functions.
+func newFanOutServer(t *testing.T) *httptest.Server {
+	t.Helper()
+
+	now := time.Date(2026, 3, 28, 12, 0, 0, 0, time.UTC)
+
+	return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.URL.Path == "/api/v1/orgs/org1/repos":
+			repos := []Repo{
+				{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+					Login string `json:"login"`
+				}{Login: "org1"}},
+				{ID: 2, Name: "repo-b", FullName: "org1/repo-b", Owner: struct {
+					Login string `json:"login"`
+				}{Login: "org1"}},
+			}
+			json.NewEncoder(w).Encode(repos)
+
+		case r.URL.Path == "/api/v1/repos/org1/repo-a/issues":
+			issues := []Issue{
+				{ID: 1, Number: 1, Title: "Issue A1", State: "open", UpdatedAt: now.Add(-1 * time.Hour)},
+				{ID: 2, Number: 2, Title: "Issue A2", State: "open", UpdatedAt: now.Add(-3 * time.Hour)},
+			}
+			json.NewEncoder(w).Encode(issues)
+
+		case r.URL.Path == "/api/v1/repos/org1/repo-b/issues":
+			issues := []Issue{
+				{ID: 3, Number: 1, Title: "Issue B1", State: "open", UpdatedAt: now.Add(-2 * time.Hour)},
+			}
+			json.NewEncoder(w).Encode(issues)
+
+		case r.URL.Path == "/api/v1/repos/org1/repo-a/pulls":
+			prs := []PullRequest{
+				{ID: 10, Number: 5, Title: "PR A1", State: "open", UpdatedAt: now.Add(-30 * time.Minute)},
+			}
+			json.NewEncoder(w).Encode(prs)
+
+		case r.URL.Path == "/api/v1/repos/org1/repo-b/pulls":
+			prs := []PullRequest{
+				{ID: 11, Number: 6, Title: "PR B1", State: "open", UpdatedAt: now.Add(-10 * time.Minute)},
+				{ID: 12, Number: 7, Title: "PR B2", State: "open", UpdatedAt: now.Add(-1 * time.Hour)},
+			}
+			json.NewEncoder(w).Encode(prs)
+
+		default:
+			t.Errorf("unexpected request path: %s", r.URL.Path)
+			http.NotFound(w, r)
+		}
+	}))
+}
+
+func TestListAllIssues_Sorting(t *testing.T) {
+	server := newFanOutServer(t)
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	// Pre-populate org repos cache to avoid needing the /user/orgs endpoint.
+	c.setCache("repos-org1", []Repo{
+		{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+		{ID: 2, Name: "repo-b", FullName: "org1/repo-b", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+	})
+
+	result, err := c.ListAllIssues(context.Background(), "test-token", []string{"org1"}, "open", 1, "", "")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	if len(result.Issues) != 3 {
+		t.Fatalf("got %d issues, want 3", len(result.Issues))
+	}
+
+	// Should be sorted by UpdatedAt descending (newest first).
+	// Issue A1 (-1h), Issue B1 (-2h), Issue A2 (-3h).
+	expected := []string{"Issue A1", "Issue B1", "Issue A2"}
+	for i, title := range expected {
+		if result.Issues[i].Title != title {
+			t.Errorf("issues[%d].Title = %q, want %q", i, result.Issues[i].Title, title)
+		}
+	}
+}
+
+func TestListAllIssues_StateFilter(t *testing.T) {
+	stateReceived := ""
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.URL.Path == "/api/v1/orgs/org1/repos":
+			repos := []Repo{
+				{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+					Login string `json:"login"`
+				}{Login: "org1"}},
+			}
+			json.NewEncoder(w).Encode(repos)
+		case r.URL.Path == "/api/v1/repos/org1/repo-a/issues":
+			stateReceived = r.URL.Query().Get("state")
+			json.NewEncoder(w).Encode([]Issue{})
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	c.setCache("repos-org1", []Repo{
+		{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+	})
+
+	_, err := c.ListAllIssues(context.Background(), "test-token", []string{"org1"}, "closed", 1, "", "")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if stateReceived != "closed" {
+		t.Errorf("state query param = %q, want %q", stateReceived, "closed")
+	}
+}
+
+func TestListAllIssues_DefaultState(t *testing.T) {
+	stateReceived := ""
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.URL.Path == "/api/v1/orgs/org1/repos":
+			json.NewEncoder(w).Encode([]Repo{
+				{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+					Login string `json:"login"`
+				}{Login: "org1"}},
+			})
+		case r.URL.Path == "/api/v1/repos/org1/repo-a/issues":
+			stateReceived = r.URL.Query().Get("state")
+			json.NewEncoder(w).Encode([]Issue{})
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	c.setCache("repos-org1", []Repo{
+		{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+	})
+
+	_, err := c.ListAllIssues(context.Background(), "test-token", []string{"org1"}, "", 1, "", "")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if stateReceived != "open" {
+		t.Errorf("default state = %q, want %q", stateReceived, "open")
+	}
+}
+
+func TestListAllIssues_RepoFilter(t *testing.T) {
+	server := newFanOutServer(t)
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	c.setCache("repos-org1", []Repo{
+		{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+		{ID: 2, Name: "repo-b", FullName: "org1/repo-b", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+	})
+
+	result, err := c.ListAllIssues(context.Background(), "test-token", []string{"org1"}, "open", 1, "", "repo-a")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	// Only issues from repo-a should be returned.
+	if len(result.Issues) != 2 {
+		t.Fatalf("got %d issues, want 2 (only from repo-a)", len(result.Issues))
+	}
+	for _, issue := range result.Issues {
+		if issue.RepoName != "repo-a" {
+			t.Errorf("issue %q has RepoName=%q, want repo-a", issue.Title, issue.RepoName)
+		}
+	}
+}
+
+func TestListAllIssues_Pagination(t *testing.T) {
+	now := time.Date(2026, 3, 28, 12, 0, 0, 0, time.UTC)
+
+	// Create enough issues to test pagination (PageSize = 20).
+	var issues []Issue
+	for i := 0; i < 25; i++ {
+		issues = append(issues, Issue{
+			ID:        int64(i + 1),
+			Number:    int64(i + 1),
+			Title:     fmt.Sprintf("Issue %d", i+1),
+			State:     "open",
+			UpdatedAt: now.Add(time.Duration(-i) * time.Hour),
+		})
+	}
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.URL.Path == "/api/v1/orgs/org1/repos":
+			json.NewEncoder(w).Encode([]Repo{
+				{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+					Login string `json:"login"`
+				}{Login: "org1"}},
+			})
+		case r.URL.Path == "/api/v1/repos/org1/repo-a/issues":
+			json.NewEncoder(w).Encode(issues)
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	c.setCache("repos-org1", []Repo{
+		{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+	})
+
+	// Page 1: should have 20 items with HasMore=true.
+	page1, err := c.ListAllIssues(context.Background(), "test-token", []string{"org1"}, "open", 1, "", "")
+	if err != nil {
+		t.Fatalf("page 1: %v", err)
+	}
+	if len(page1.Issues) != 20 {
+		t.Errorf("page 1: got %d issues, want 20", len(page1.Issues))
+	}
+	if !page1.HasMore {
+		t.Error("page 1: HasMore should be true")
+	}
+
+	// Page 2: should have 5 items with HasMore=false.
+	page2, err := c.ListAllIssues(context.Background(), "test-token", []string{"org1"}, "open", 2, "", "")
+	if err != nil {
+		t.Fatalf("page 2: %v", err)
+	}
+	if len(page2.Issues) != 5 {
+		t.Errorf("page 2: got %d issues, want 5", len(page2.Issues))
+	}
+	if page2.HasMore {
+		t.Error("page 2: HasMore should be false")
+	}
+}
+
+func TestListAllPullRequests_Sorting(t *testing.T) {
+	server := newFanOutServer(t)
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	c.setCache("repos-org1", []Repo{
+		{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+		{ID: 2, Name: "repo-b", FullName: "org1/repo-b", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+	})
+
+	result, err := c.ListAllPullRequests(context.Background(), "test-token", []string{"org1"}, "open", 1, "", "")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	if len(result.Pulls) != 3 {
+		t.Fatalf("got %d PRs, want 3", len(result.Pulls))
+	}
+
+	// Should be sorted by UpdatedAt descending.
+	// PR B1 (-10m), PR A1 (-30m), PR B2 (-1h).
+	expected := []string{"PR B1", "PR A1", "PR B2"}
+	for i, title := range expected {
+		if result.Pulls[i].Title != title {
+			t.Errorf("pulls[%d].Title = %q, want %q", i, result.Pulls[i].Title, title)
+		}
+	}
+}
+
+func TestListAllPullRequests_StateFilter(t *testing.T) {
+	stateReceived := ""
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.URL.Path == "/api/v1/orgs/org1/repos":
+			json.NewEncoder(w).Encode([]Repo{
+				{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+					Login string `json:"login"`
+				}{Login: "org1"}},
+			})
+		case r.URL.Path == "/api/v1/repos/org1/repo-a/pulls":
+			stateReceived = r.URL.Query().Get("state")
+			json.NewEncoder(w).Encode([]PullRequest{})
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	c.setCache("repos-org1", []Repo{
+		{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+	})
+
+	_, err := c.ListAllPullRequests(context.Background(), "test-token", []string{"org1"}, "closed", 1, "", "")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if stateReceived != "closed" {
+		t.Errorf("state query param = %q, want %q", stateReceived, "closed")
+	}
+}
+
+// --- Issue #127: Tests for ApplyLabel and SubmitReview ---
+
+func TestApplyLabel(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			t.Errorf("expected POST, got %s", r.Method)
+		}
+		if r.URL.Path != "/api/v1/repos/owner1/repo1/issues/42/labels" {
+			t.Errorf("unexpected path: %s", r.URL.Path)
+		}
+		if r.Header.Get("Authorization") != "token test-token" {
+			t.Error("missing or wrong Authorization header")
+		}
+
+		var body map[string]interface{}
+		if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+			t.Fatalf("failed to decode body: %v", err)
+		}
+		labels, ok := body["labels"].([]interface{})
+		if !ok {
+			t.Fatalf("expected labels array, got %T", body["labels"])
+		}
+		if len(labels) != 2 {
+			t.Errorf("expected 2 label IDs, got %d", len(labels))
+		}
+		// Verify the label IDs are correct (JSON numbers are float64).
+		if labels[0].(float64) != 10 || labels[1].(float64) != 20 {
+			t.Errorf("expected label IDs [10, 20], got %v", labels)
+		}
+
+		w.WriteHeader(http.StatusOK)
+		json.NewEncoder(w).Encode([]map[string]interface{}{
+			{"id": 10, "name": "bug"},
+			{"id": 20, "name": "enhancement"},
+		})
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	c.setCache("issues-org1", "should-be-invalidated")
+
+	err := c.ApplyLabel(context.Background(), "test-token", "owner1", "repo1", 42, []int64{10, 20})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	// Verify cache was invalidated.
+	_, ok := c.getFromCache("issues-org1")
+	if ok {
+		t.Error("expected cache to be invalidated after ApplyLabel")
+	}
+}
+
+func TestApplyLabel_Error(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+		fmt.Fprintln(w, `{"message":"issue not found"}`)
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	err := c.ApplyLabel(context.Background(), "test-token", "owner1", "repo1", 999, []int64{10})
+	if err == nil {
+		t.Fatal("expected error for 404 response, got nil")
+	}
+	if !strings.Contains(err.Error(), "404") {
+		t.Errorf("error should contain status code 404, got: %v", err)
+	}
+}
+
+func TestSubmitReview(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			t.Errorf("expected POST, got %s", r.Method)
+		}
+		if r.URL.Path != "/api/v1/repos/owner1/repo1/pulls/7/reviews" {
+			t.Errorf("unexpected path: %s", r.URL.Path)
+		}
+		if r.Header.Get("Authorization") != "token test-token" {
+			t.Error("missing or wrong Authorization header")
+		}
+
+		var body map[string]string
+		if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+			t.Fatalf("failed to decode body: %v", err)
+		}
+		if body["event"] != "APPROVED" {
+			t.Errorf("expected event=APPROVED, got %q", body["event"])
+		}
+		if body["body"] != "Looks good!" {
+			t.Errorf("expected body='Looks good!', got %q", body["body"])
+		}
+
+		w.WriteHeader(http.StatusOK)
+		json.NewEncoder(w).Encode(map[string]interface{}{
+			"id":    1,
+			"state": "APPROVED",
+			"body":  body["body"],
+		})
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	c.setCache("pulls-org1", "should-be-invalidated")
+
+	err := c.SubmitReview(context.Background(), "test-token", "owner1", "repo1", 7, "APPROVED", "Looks good!")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	// Verify cache was invalidated.
+	_, ok := c.getFromCache("pulls-org1")
+	if ok {
+		t.Error("expected cache to be invalidated after SubmitReview")
+	}
+}
+
+func TestSubmitReview_Error(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusUnprocessableEntity)
+		fmt.Fprintln(w, `{"message":"validation failed"}`)
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	err := c.SubmitReview(context.Background(), "test-token", "owner1", "repo1", 7, "INVALID", "")
+	if err == nil {
+		t.Fatal("expected error for 422 response, got nil")
+	}
+	if !strings.Contains(err.Error(), "422") {
+		t.Errorf("error should contain status code 422, got: %v", err)
+	}
+}
+
+func TestListAllPullRequests_Pagination(t *testing.T) {
+	now := time.Date(2026, 3, 28, 12, 0, 0, 0, time.UTC)
+
+	var prs []PullRequest
+	for i := 0; i < 25; i++ {
+		prs = append(prs, PullRequest{
+			ID:        int64(i + 1),
+			Number:    int64(i + 1),
+			Title:     fmt.Sprintf("PR %d", i+1),
+			State:     "open",
+			UpdatedAt: now.Add(time.Duration(-i) * time.Hour),
+		})
+	}
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.URL.Path == "/api/v1/orgs/org1/repos":
+			json.NewEncoder(w).Encode([]Repo{
+				{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+					Login string `json:"login"`
+				}{Login: "org1"}},
+			})
+		case r.URL.Path == "/api/v1/repos/org1/repo-a/pulls":
+			json.NewEncoder(w).Encode(prs)
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer server.Close()
+
+	c := NewClient(server.URL)
+	c.setCache("repos-org1", []Repo{
+		{ID: 1, Name: "repo-a", FullName: "org1/repo-a", Owner: struct {
+			Login string `json:"login"`
+		}{Login: "org1"}},
+	})
+
+	page1, err := c.ListAllPullRequests(context.Background(), "test-token", []string{"org1"}, "open", 1, "", "")
+	if err != nil {
+		t.Fatalf("page 1: %v", err)
+	}
+	if len(page1.Pulls) != 20 {
+		t.Errorf("page 1: got %d PRs, want 20", len(page1.Pulls))
+	}
+	if !page1.HasMore {
+		t.Error("page 1: HasMore should be true")
+	}
+
+	page2, err := c.ListAllPullRequests(context.Background(), "test-token", []string{"org1"}, "open", 2, "", "")
+	if err != nil {
+		t.Fatalf("page 2: %v", err)
+	}
+	if len(page2.Pulls) != 5 {
+		t.Errorf("page 2: got %d PRs, want 5", len(page2.Pulls))
+	}
+	if page2.HasMore {
+		t.Error("page 2: HasMore should be false")
+	}
+}

internal/handlers/handlers.go

@@ -39,8 +39,10 @@ func (h *Handler) RegisterRoutes(mux *http.ServeMux) {
 	// Issues.
 	mux.HandleFunc("GET /issues", h.ListIssues)
 	mux.HandleFunc("GET /issues/new", h.NewIssue)
+	mux.HandleFunc("GET /issues/new/labels", h.NewIssueLabels)
 	mux.HandleFunc("POST /issues", h.CreateIssue)
 	mux.HandleFunc("POST /issues/{owner}/{repo}/{index}/labels", h.ApplyLabels)
+	mux.HandleFunc("POST /issues/{owner}/{repo}/{index}/assignees", h.AssignIssue)
 	mux.HandleFunc("POST /issues/{owner}/{repo}/{index}/close", h.CloseIssue)
 	mux.HandleFunc("POST /issues/{owner}/{repo}/{index}/state", h.SetIssueState)
 	mux.HandleFunc("POST /issues/{owner}/{repo}/{index}/comments", h.AddComment)
@@ -53,6 +55,7 @@ func (h *Handler) RegisterRoutes(mux *http.ServeMux) {
 	mux.HandleFunc("GET /pulls", h.ListPulls)
 	mux.HandleFunc("GET /pulls/{owner}/{repo}/{index}", h.PullDetail)
 	mux.HandleFunc("POST /pulls/{owner}/{repo}/{index}/review", h.SubmitReview)
+	mux.HandleFunc("POST /pulls/{owner}/{repo}/{index}/state", h.SetPullState)
 
 	// Settings (handled separately for auth bypass).
 	settingsHandler := &SettingsHandler{
@@ -247,6 +250,9 @@ func (h *Handler) ListIssues(w http.ResponseWriter, r *http.Request) {
 		Orgs          []string
 		SelectedOrg   string
 		SelectedState string
+		SelectedLabel string
+		SelectedRepo  string
+		Repos         []string
 		HasMore       bool
 		NextPage      int
 		Error         string
@@ -257,6 +263,8 @@ func (h *Handler) ListIssues(w http.ResponseWriter, r *http.Request) {
 	if selectedState == "" {
 		selectedState = "open"
 	}
+	selectedLabel := r.URL.Query().Get("label")
+	selectedRepo := r.URL.Query().Get("repo")
 	page, _ := strconv.Atoi(r.URL.Query().Get("page"))
 	if page < 1 {
 		page = 1
@@ -266,6 +274,8 @@ func (h *Handler) ListIssues(w http.ResponseWriter, r *http.Request) {
 		Orgs:          orgNames,
 		SelectedOrg:   selectedOrg,
 		SelectedState: selectedState,
+		SelectedLabel: selectedLabel,
+		SelectedRepo:  selectedRepo,
 	}
 
 	if len(orgNames) == 0 {
@@ -275,9 +285,19 @@ func (h *Handler) ListIssues(w http.ResponseWriter, r *http.Request) {
 		queryOrgs := orgNames
 		if selectedOrg != "" {
 			queryOrgs = []string{selectedOrg}
+
+			// Populate repo list for the selected org.
+			repos, err := h.Client.ListOrgRepos(r.Context(), token, selectedOrg)
+			if err != nil {
+				slog.Warn("failed to list repos for org filter", "error", err, "org", selectedOrg)
+			} else {
+				for _, repo := range repos {
+					data.Repos = append(data.Repos, repo.Name)
+				}
+			}
 		}
 
-		result, err := h.Client.ListAllIssues(r.Context(), token, queryOrgs, selectedState, page)
+		result, err := h.Client.ListAllIssues(r.Context(), token, queryOrgs, selectedState, page, selectedLabel, selectedRepo)
 		if err != nil {
 			slog.Error("failed to list issues", "error", err)
 			data.Error = "Error loading issues."
@@ -332,23 +352,36 @@ func (h *Handler) ListPulls(w http.ResponseWriter, r *http.Request) {
 	orgNames := h.getUserOrgs(r)
 
 	type pullsData struct {
-		Pulls       []giteaclient.PullRequest
-		Orgs        []string
-		SelectedOrg string
-		HasMore     bool
-		NextPage    int
-		Error       string
+		Pulls         []giteaclient.PullRequest
+		Orgs          []string
+		SelectedOrg   string
+		SelectedState string
+		SelectedLabel string
+		SelectedRepo  string
+		Repos         []string
+		HasMore       bool
+		NextPage      int
+		Error         string
 	}
 
 	selectedOrg := r.URL.Query().Get("org")
+	selectedState := r.URL.Query().Get("state")
+	if selectedState == "" {
+		selectedState = "open"
+	}
+	selectedLabel := r.URL.Query().Get("label")
+	selectedRepo := r.URL.Query().Get("repo")
 	page, _ := strconv.Atoi(r.URL.Query().Get("page"))
 	if page < 1 {
 		page = 1
 	}
 
 	data := pullsData{
-		Orgs:        orgNames,
-		SelectedOrg: selectedOrg,
+		Orgs:          orgNames,
+		SelectedOrg:   selectedOrg,
+		SelectedState: selectedState,
+		SelectedLabel: selectedLabel,
+		SelectedRepo:  selectedRepo,
 	}
 
 	if len(orgNames) == 0 {
@@ -357,9 +390,19 @@ func (h *Handler) ListPulls(w http.ResponseWriter, r *http.Request) {
 		queryOrgs := orgNames
 		if selectedOrg != "" {
 			queryOrgs = []string{selectedOrg}
+
+			// Populate repo list for the selected org.
+			repos, err := h.Client.ListOrgRepos(r.Context(), token, selectedOrg)
+			if err != nil {
+				slog.Warn("failed to list repos for org filter", "error", err, "org", selectedOrg)
+			} else {
+				for _, repo := range repos {
+					data.Repos = append(data.Repos, repo.Name)
+				}
+			}
 		}
 
-		result, err := h.Client.ListAllPullRequests(r.Context(), token, queryOrgs, "open", page)
+		result, err := h.Client.ListAllPullRequests(r.Context(), token, queryOrgs, selectedState, page, selectedLabel, selectedRepo)
 		if err != nil {
 			slog.Error("failed to list pull requests", "error", err)
 			data.Error = "Error loading pull requests."
@@ -369,6 +412,10 @@ func (h *Handler) ListPulls(w http.ResponseWriter, r *http.Request) {
 			if result.HasMore {
 				data.NextPage = page + 1
 			}
+			// Enrich PRs with review state for status icons.
+			if len(data.Pulls) > 0 {
+				h.Client.EnrichPullsWithReviewState(r.Context(), token, data.Pulls)
+			}
 		}
 	}
 
@@ -441,6 +488,12 @@ func (h *Handler) IssueDetail(w http.ResponseWriter, r *http.Request) {
 		labels = nil
 	}
 
+	collaborators, err := h.Client.ListCollaborators(r.Context(), token, owner, repo)
+	if err != nil {
+		slog.Error("failed to get collaborators", "error", err)
+		collaborators = nil
+	}
+
 	// Render markdown body if present.
 	var renderedBody template.HTML
 	if issue.Body != "" {
@@ -465,6 +518,7 @@ func (h *Handler) IssueDetail(w http.ResponseWriter, r *http.Request) {
 		RenderedBody    template.HTML
 		Comments        []giteaclient.Comment
 		AvailableLabels []giteaclient.Label
+		Collaborators   []string
 	}
 
 	data := templateData{
@@ -472,6 +526,7 @@ func (h *Handler) IssueDetail(w http.ResponseWriter, r *http.Request) {
 		RenderedBody:    renderedBody,
 		Comments:        comments,
 		AvailableLabels: labels,
+		Collaborators:   collaborators,
 	}
 
 	var buf strings.Builder
@@ -516,6 +571,13 @@ func (h *Handler) PullDetail(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
+	// Fetch comments for this PR (Gitea uses the issues endpoint for PR comments).
+	comments, err := h.Client.GetIssueComments(r.Context(), token, owner, repo, index)
+	if err != nil {
+		slog.Warn("failed to fetch PR comments", "error", err, "owner", owner, "repo", repo, "index", index)
+		// Non-fatal: continue rendering without comments.
+	}
+
 	// Build the content HTML using the template.
 	tmpl, err := template.ParseFiles("internal/templates/pull_detail.html")
 	if err != nil {
@@ -527,11 +589,13 @@ func (h *Handler) PullDetail(w http.ResponseWriter, r *http.Request) {
 	type templateData struct {
 		Pull         *giteaclient.PullRequest
 		RenderedBody template.HTML
+		Comments     []giteaclient.Comment
 	}
 
 	data := templateData{
 		Pull:         pr,
 		RenderedBody: renderedBody,
+		Comments:     comments,
 	}
 
 	var buf strings.Builder
@@ -579,6 +643,38 @@ func (h *Handler) NewIssue(w http.ResponseWriter, r *http.Request) {
 	renderPage(w, r, "New Issue", "issues", buf.String())
 }
 
+// NewIssueLabels handles GET /issues/new/labels — returns label checkboxes for a repo.
+func (h *Handler) NewIssueLabels(w http.ResponseWriter, r *http.Request) {
+	token := getToken(r)
+	owner := r.URL.Query().Get("owner")
+	repo := r.URL.Query().Get("repo")
+
+	if owner == "" || repo == "" {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		fmt.Fprint(w, `<span class="empty">Select a repository first.</span>`)
+		return
+	}
+
+	labels, err := h.Client.GetRepoLabels(r.Context(), token, owner, repo)
+	if err != nil {
+		slog.Error("failed to fetch labels", "error", err, "owner", owner, "repo", repo)
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		fmt.Fprint(w, `<span class="empty">Error loading labels.</span>`)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	if len(labels) == 0 {
+		fmt.Fprint(w, `<span class="empty">No labels available for this repository.</span>`)
+		return
+	}
+
+	for _, l := range labels {
+		fmt.Fprintf(w, `<label style="display:inline-block;margin:0.25rem 0.5rem 0.25rem 0;cursor:pointer;"><input type="checkbox" name="label_ids" value="%d" style="margin-right:0.25rem;"> <span class="label" style="color:#%s;border:1px solid #%s">%s</span></label>`,
+			l.ID, template.HTMLEscapeString(l.Color), template.HTMLEscapeString(l.Color), template.HTMLEscapeString(l.Name))
+	}
+}
+
 // CreateIssue handles POST /issues.
 func (h *Handler) CreateIssue(w http.ResponseWriter, r *http.Request) {
 	token := getToken(r)
@@ -592,6 +688,15 @@ func (h *Handler) CreateIssue(w http.ResponseWriter, r *http.Request) {
 	title := r.FormValue("title")
 	body := r.FormValue("body")
 
+	// Parse label IDs from form checkboxes.
+	var labelIDs []int64
+	for _, idStr := range r.Form["label_ids"] {
+		id, err := strconv.ParseInt(idStr, 10, 64)
+		if err == nil {
+			labelIDs = append(labelIDs, id)
+		}
+	}
+
 	if owner == "" || repo == "" || title == "" {
 		if isHTMX(r) {
 			w.Header().Set("Content-Type", "text/html; charset=utf-8")
@@ -603,7 +708,7 @@ func (h *Handler) CreateIssue(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	issue, err := h.Client.CreateIssue(r.Context(), token, owner, repo, title, body, nil)
+	issue, err := h.Client.CreateIssue(r.Context(), token, owner, repo, title, body, labelIDs)
 	if err != nil {
 		slog.Error("failed to create issue", "error", err)
 		if isHTMX(r) {
@@ -672,6 +777,45 @@ func (h *Handler) ApplyLabels(w http.ResponseWriter, r *http.Request) {
 	http.Redirect(w, r, fmt.Sprintf("/issues/%s/%s/%d", owner, repo, index), http.StatusSeeOther)
 }
 
+// AssignIssue handles POST /issues/{owner}/{repo}/{index}/assignees.
+func (h *Handler) AssignIssue(w http.ResponseWriter, r *http.Request) {
+	token := getToken(r)
+	owner := r.PathValue("owner")
+	repo := r.PathValue("repo")
+	indexStr := r.PathValue("index")
+
+	index, err := strconv.ParseInt(indexStr, 10, 64)
+	if err != nil {
+		http.Error(w, "invalid issue index", http.StatusBadRequest)
+		return
+	}
+
+	if err := r.ParseForm(); err != nil {
+		http.Error(w, "bad request", http.StatusBadRequest)
+		return
+	}
+
+	assignee := r.FormValue("assignee")
+	if assignee == "" {
+		http.Error(w, "assignee is required", http.StatusBadRequest)
+		return
+	}
+
+	if err := h.Client.AssignIssue(r.Context(), token, owner, repo, index, []string{assignee}); err != nil {
+		slog.Error("failed to assign issue", "error", err, "owner", owner, "repo", repo, "index", index, "assignee", assignee)
+		http.Error(w, "failed to assign issue", http.StatusInternalServerError)
+		return
+	}
+
+	if isHTMX(r) {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		fmt.Fprintf(w, `<span style="color:#3fb950">Assigned to %s</span>`, template.HTMLEscapeString(assignee))
+		return
+	}
+
+	http.Redirect(w, r, fmt.Sprintf("/issues/%s/%s/%d", owner, repo, index), http.StatusSeeOther)
+}
+
 // CloseIssue handles POST /issues/{owner}/{repo}/{index}/close.
 func (h *Handler) CloseIssue(w http.ResponseWriter, r *http.Request) {
 	token := getToken(r)
@@ -747,6 +891,53 @@ func (h *Handler) SetIssueState(w http.ResponseWriter, r *http.Request) {
 	http.Redirect(w, r, fmt.Sprintf("/issues/%s/%s/%d", owner, repo, index), http.StatusSeeOther)
 }
 
+// SetPullState handles POST /pulls/{owner}/{repo}/{index}/state.
+func (h *Handler) SetPullState(w http.ResponseWriter, r *http.Request) {
+	token := getToken(r)
+	owner := r.PathValue("owner")
+	repo := r.PathValue("repo")
+	indexStr := r.PathValue("index")
+
+	index, err := strconv.ParseInt(indexStr, 10, 64)
+	if err != nil {
+		http.Error(w, "invalid pull request index", http.StatusBadRequest)
+		return
+	}
+
+	if err := r.ParseForm(); err != nil {
+		http.Error(w, "bad request", http.StatusBadRequest)
+		return
+	}
+
+	state := r.FormValue("state")
+	if state != "open" && state != "closed" {
+		http.Error(w, "state must be 'open' or 'closed'", http.StatusBadRequest)
+		return
+	}
+
+	if err := h.Client.SetIssueState(r.Context(), token, owner, repo, index, state); err != nil {
+		slog.Error("failed to set pull request state", "error", err, "owner", owner, "repo", repo, "index", index, "state", state)
+		http.Error(w, "failed to update pull request state", http.StatusInternalServerError)
+		return
+	}
+
+	if isHTMX(r) {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		if state == "closed" {
+			fmt.Fprintf(w, `<span class="state-closed" id="pull-state">closed</span>
+<button class="btn btn-secondary" hx-post="/pulls/%s/%s/%d/state" hx-vals='{"state":"open"}' hx-target="#state-section" hx-swap="innerHTML">Reopen PR</button>`,
+				template.HTMLEscapeString(owner), template.HTMLEscapeString(repo), index)
+		} else {
+			fmt.Fprintf(w, `<span class="state-open" id="pull-state">open</span>
+<button class="btn btn-danger" hx-post="/pulls/%s/%s/%d/state" hx-vals='{"state":"closed"}' hx-target="#state-section" hx-swap="innerHTML">Close PR</button>`,
+				template.HTMLEscapeString(owner), template.HTMLEscapeString(repo), index)
+		}
+		return
+	}
+
+	http.Redirect(w, r, fmt.Sprintf("/pulls/%s/%s/%d", owner, repo, index), http.StatusSeeOther)
+}
+
 // AddComment handles POST /issues/{owner}/{repo}/{index}/comment.
 func (h *Handler) AddComment(w http.ResponseWriter, r *http.Request) {
 	token := getToken(r)

internal/templates/create_issue.html

@@ -6,20 +6,24 @@
 <form id="create-issue-form" hx-post="/issues" hx-swap="innerHTML" hx-target="#main-content">
   <div class="form-group">
     <label for="repo-select">Repository</label>
-    <select id="repo-select" name="owner_repo" required>
-      <option value="">Select a repository...</option>
+    <input list="repo-options" id="repo-select" name="owner_repo"
+           placeholder="Type to search repositories..." required autocomplete="off">
+    <datalist id="repo-options">
       {{range $org, $repos := .Repos}}
-      <optgroup label="{{$org}}">
         {{range $repos}}
         <option value="{{.Owner.Login}}/{{.Name}}">{{.FullName}}</option>
         {{end}}
-      </optgroup>
       {{end}}
-    </select>
+    </datalist>
     <input type="hidden" name="owner" id="owner-input">
     <input type="hidden" name="repo" id="repo-input">
   </div>
 
+  <div class="form-group" id="label-section" style="display:none;">
+    <label>Labels</label>
+    <div id="label-list"></div>
+  </div>
+
   <div class="form-group">
     <label for="title">Title</label>
     <input type="text" id="title" name="title" placeholder="Issue title" required>
@@ -40,9 +44,16 @@
     var repoInput = document.getElementById('repo-input');
     var formError = document.getElementById('form-error');
 
+    // Build a set of valid repo values for validation.
+    var validRepos = {};
+    var options = document.getElementById('repo-options').options;
+    for (var i = 0; i < options.length; i++) {
+      validRepos[options[i].value] = true;
+    }
+
     function splitOwnerRepo() {
       var val = repoSelect.value;
-      if (val) {
+      if (val && val.indexOf('/') !== -1) {
         var parts = val.split('/');
         ownerInput.value = parts[0] || '';
         repoInput.value = parts[1] || '';
@@ -52,7 +63,39 @@
       }
     }
 
-    repoSelect.addEventListener('change', splitOwnerRepo);
+    var debounceTimer = null;
+    repoSelect.addEventListener('input', function() {
+      clearTimeout(debounceTimer);
+      debounceTimer = setTimeout(function() {
+        splitOwnerRepo();
+        var labelSection = document.getElementById('label-section');
+        var labelList = document.getElementById('label-list');
+        if (ownerInput.value && repoInput.value && validRepos[repoSelect.value]) {
+          labelList.innerHTML = '<span class="empty">Loading labels...</span>';
+          labelSection.style.display = 'block';
+          htmx.ajax('GET', '/issues/new/labels?owner=' + encodeURIComponent(ownerInput.value) + '&repo=' + encodeURIComponent(repoInput.value), {target: '#label-list', swap: 'innerHTML'});
+        } else {
+          labelSection.style.display = 'none';
+          labelList.innerHTML = '';
+        }
+      }, 300);
+    });
+
+    // Also handle the change event for when a datalist option is selected directly.
+    repoSelect.addEventListener('change', function() {
+      clearTimeout(debounceTimer);
+      splitOwnerRepo();
+      var labelSection = document.getElementById('label-section');
+      var labelList = document.getElementById('label-list');
+      if (ownerInput.value && repoInput.value && validRepos[repoSelect.value]) {
+        labelList.innerHTML = '<span class="empty">Loading labels...</span>';
+        labelSection.style.display = 'block';
+        htmx.ajax('GET', '/issues/new/labels?owner=' + encodeURIComponent(ownerInput.value) + '&repo=' + encodeURIComponent(repoInput.value), {target: '#label-list', swap: 'innerHTML'});
+      } else {
+        labelSection.style.display = 'none';
+        labelList.innerHTML = '';
+      }
+    });
 
     // Validate before HTMX submit.
     document.getElementById('create-issue-form').addEventListener('htmx:configRequest', function(evt) {
@@ -63,6 +106,12 @@
         formError.style.display = 'block';
         return false;
       }
+      if (!validRepos[repoSelect.value]) {
+        evt.preventDefault();
+        formError.textContent = 'Please select a valid repository from the list.';
+        formError.style.display = 'block';
+        return false;
+      }
       formError.style.display = 'none';
     });
 

internal/templates/issue_detail.html

@@ -51,6 +51,18 @@
 
 <div class="card" style="margin-top:1rem;">
   <h2>Actions</h2>
+  {{if .Collaborators}}
+  <form hx-post="/issues/{{.Issue.RepoOwner}}/{{.Issue.RepoName}}/{{.Issue.Number}}/assignees" hx-swap="outerHTML" style="margin-bottom:0.5rem;">
+    <div class="filter-bar" style="margin-bottom:0.5rem;">
+      <select name="assignee">
+        {{range .Collaborators}}
+        <option value="{{.}}">{{.}}</option>
+        {{end}}
+      </select>
+      <button type="submit" class="btn btn-secondary" style="width:auto;padding:0.5rem 1rem;">Assign</button>
+    </div>
+  </form>
+  {{end}}
   <form hx-post="/issues/{{.Issue.RepoOwner}}/{{.Issue.RepoName}}/{{.Issue.Number}}/labels" hx-swap="outerHTML" style="margin-bottom:0.5rem;">
     <div class="filter-bar" style="margin-bottom:0.5rem;">
       <select name="label_id">

internal/templates/issues.html

@@ -8,13 +8,13 @@
       <span class="label" style="color:#{{.Color}};border:1px solid #{{.Color}}">{{.Name}}</span>
       {{end}}
       {{if .Assignee}}
-      <span>{{.Assignee.Login}}</span>
+      <img src="{{.Assignee.AvatarURL}}" alt="{{.Assignee.Login}}" class="avatar" title="Assigned to {{.Assignee.Login}}">
       {{end}}
     </div>
   </div>
   {{end}}
   {{if .HasMore}}
-  <div class="scroll-sentinel" hx-get="/issues?page={{.NextPage}}&org={{.SelectedOrg}}&state={{.SelectedState}}" hx-trigger="revealed" hx-swap="outerHTML" hx-target="this">
+  <div class="scroll-sentinel" hx-get="/issues?page={{.NextPage}}&org={{.SelectedOrg}}&state={{.SelectedState}}&label={{.SelectedLabel}}&repo={{.SelectedRepo}}" hx-trigger="revealed" hx-swap="outerHTML" hx-target="this">
     <div class="spinner htmx-indicator"></div>
   </div>
   {{end}}
@@ -24,16 +24,25 @@
 <h1>Issues</h1>
 
 <div class="filter-bar">
-  <select name="org" hx-get="/issues" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='state']">
+  <select name="org" hx-get="/issues" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='state'],[name='label']">
     <option value="">All orgs</option>
     {{range .Orgs}}
     <option value="{{.}}" {{if eq . $.SelectedOrg}}selected{{end}}>{{.}}</option>
     {{end}}
   </select>
-  <select name="state" hx-get="/issues" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='org']">
+  {{if .Repos}}
+  <select name="repo" hx-get="/issues" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='org'],[name='state'],[name='label']">
+    <option value="">All repos</option>
+    {{range .Repos}}<option value="{{.}}" {{if eq . $.SelectedRepo}}selected{{end}}>{{.}}</option>{{end}}
+  </select>
+  {{end}}
+  <select name="state" hx-get="/issues" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='org'],[name='repo'],[name='label']">
     <option value="open" {{if eq .SelectedState "open"}}selected{{end}}>Open</option>
     <option value="closed" {{if eq .SelectedState "closed"}}selected{{end}}>Closed</option>
   </select>
+  <input type="text" name="label" placeholder="Filter by label..." value="{{.SelectedLabel}}"
+         hx-get="/issues" hx-trigger="input changed delay:400ms" hx-target="#main-content"
+         hx-swap="innerHTML" hx-push-url="true" hx-include="[name='org'],[name='state'],[name='repo']">
 </div>
 
 {{if .Error}}

internal/templates/pull_detail.html

@@ -4,7 +4,7 @@
 <div class="card">
   <div class="card-meta">
     <span class="type-badge type-pull">PR</span>
-    <span class="state-open">{{.Pull.State}}</span>
+    {{if eq .Pull.State "closed"}}<span class="state-closed">{{.Pull.State}}</span>{{else}}<span class="state-open">{{.Pull.State}}</span>{{end}}
     <span>{{.Pull.RepoOwner}}/{{.Pull.RepoName}} #{{.Pull.Number}}</span>
     {{range .Pull.Labels}}
     <span class="label" style="color:#{{.Color}};border:1px solid #{{.Color}}">{{.Name}}</span>
@@ -15,6 +15,17 @@
     <span class="diff-del">-{{.Pull.Deletions}}</span>
     {{if .Pull.Mergeable}}<span style="color:var(--accent-green);">Mergeable</span>{{end}}
   </div>
+  <div class="card-meta" style="margin-top:0.5rem;">
+    <span id="state-section">
+      {{if eq .Pull.State "closed"}}
+      <span class="state-closed" id="pull-state">{{.Pull.State}}</span>
+      <button class="btn btn-secondary" hx-post="/pulls/{{.Pull.RepoOwner}}/{{.Pull.RepoName}}/{{.Pull.Number}}/state" hx-vals='{"state":"open"}' hx-target="#state-section" hx-swap="innerHTML">Reopen PR</button>
+      {{else}}
+      <span class="state-open" id="pull-state">{{.Pull.State}}</span>
+      <button class="btn btn-danger" hx-post="/pulls/{{.Pull.RepoOwner}}/{{.Pull.RepoName}}/{{.Pull.Number}}/state" hx-vals='{"state":"closed"}' hx-target="#state-section" hx-swap="innerHTML">Close PR</button>
+      {{end}}
+    </span>
+  </div>
   {{if .RenderedBody}}
   <div class="card-body markdown-body">{{.RenderedBody}}</div>
   {{else if .Pull.Body}}
@@ -46,4 +57,21 @@
     <button type="submit" class="btn btn-primary">Submit Review</button>
   </form>
 </div>
+
+{{if .Comments}}
+<h2>Comments</h2>
+<div id="comments-list">
+{{range .Comments}}
+<div class="comment">
+  <div class="comment-header">
+    <strong>{{.User}}</strong>
+    <span>{{.CreatedAt}}</span>
+  </div>
+  <div class="comment-body">{{.Body}}</div>
+</div>
+{{end}}
+</div>
+{{else}}
+<p class="empty" style="margin-top:1rem;">No comments yet.</p>
+{{end}}
 {{end}}

internal/templates/pulls.html

@@ -12,12 +12,18 @@
       {{end}}
       <span class="diff-add">+{{.Additions}}</span>
       <span class="diff-del">-{{.Deletions}}</span>
-      {{if .Mergeable}}<span style="color:var(--accent-green);font-size:0.7rem;">mergeable</span>{{end}}
+      {{if eq .ReviewState "approved"}}<span class="review-badge review-approved" title="Approved">&#10003;</span>
+      {{else if eq .ReviewState "changes_requested"}}<span class="review-badge review-changes" title="Changes requested">&#10007;</span>
+      {{else if eq .ReviewState "pending"}}<span class="review-badge review-pending" title="Awaiting review">&#9202;</span>
+      {{end}}
+      {{if .Mergeable}}<span class="merge-badge merge-ready" title="Ready to merge">&#9654; Ready</span>
+      {{else}}<span class="merge-badge merge-conflicts" title="Has conflicts or not mergeable">Conflicts</span>
+      {{end}}
     </div>
   </div>
   {{end}}
   {{if .HasMore}}
-  <div class="scroll-sentinel" hx-get="/pulls?page={{.NextPage}}&org={{.SelectedOrg}}" hx-trigger="revealed" hx-swap="outerHTML" hx-target="this">
+  <div class="scroll-sentinel" hx-get="/pulls?page={{.NextPage}}&org={{.SelectedOrg}}&state={{.SelectedState}}&label={{.SelectedLabel}}&repo={{.SelectedRepo}}" hx-trigger="revealed" hx-swap="outerHTML" hx-target="this">
     <div class="spinner htmx-indicator"></div>
   </div>
   {{end}}
@@ -27,18 +33,31 @@
 <h1>Pull Requests</h1>
 
 <div class="filter-bar">
-  <select name="org" hx-get="/pulls" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true">
+  <select name="org" hx-get="/pulls" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='state'],[name='label']">
     <option value="">All orgs</option>
     {{range .Orgs}}
     <option value="{{.}}" {{if eq . $.SelectedOrg}}selected{{end}}>{{.}}</option>
     {{end}}
   </select>
+  {{if .Repos}}
+  <select name="repo" hx-get="/pulls" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='org'],[name='state'],[name='label']">
+    <option value="">All repos</option>
+    {{range .Repos}}<option value="{{.}}" {{if eq . $.SelectedRepo}}selected{{end}}>{{.}}</option>{{end}}
+  </select>
+  {{end}}
+  <select name="state" hx-get="/pulls" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='org'],[name='repo'],[name='label']">
+    <option value="open" {{if eq .SelectedState "open"}}selected{{end}}>Open</option>
+    <option value="closed" {{if eq .SelectedState "closed"}}selected{{end}}>Closed</option>
+  </select>
+  <input type="text" name="label" placeholder="Filter by label..." value="{{.SelectedLabel}}"
+         hx-get="/pulls" hx-trigger="input changed delay:400ms" hx-target="#main-content"
+         hx-swap="innerHTML" hx-push-url="true" hx-include="[name='org'],[name='state'],[name='repo']">
 </div>
 
 {{if .Error}}
 <p class="empty">{{.Error}}</p>
 {{else if not .Pulls}}
-<p class="empty">No open pull requests found.</p>
+<p class="empty">No {{.SelectedState}} pull requests found.</p>
 {{else}}
 <div id="pull-list">
   {{template "cards" .}}

static/style.css

@@ -419,6 +419,29 @@ a:active {
   vertical-align: middle;
 }
 
+/* Review status badges */
+.review-badge {
+  font-size: 0.7rem;
+  font-weight: 600;
+  padding: 1px 4px;
+  border-radius: var(--radius-pill);
+  vertical-align: middle;
+}
+.review-approved { color: var(--accent-green); }
+.review-changes { color: var(--accent-red); }
+.review-pending { color: var(--accent-yellow); }
+
+/* Merge status badges */
+.merge-badge {
+  font-size: 0.65rem;
+  font-weight: 600;
+  padding: 1px 5px;
+  border-radius: var(--radius-pill);
+  vertical-align: middle;
+}
+.merge-ready { color: var(--accent-green); border: 1px solid var(--accent-green); }
+.merge-conflicts { color: var(--accent-red); border: 1px solid var(--accent-red); }
+
 /* Empty state */
 .empty {
   text-align: center;
@@ -487,13 +510,17 @@ a:active {
     max-width: 960px;
   }
 
-  .card-grid {
+  .card-grid,
+  #issue-list,
+  #pull-list {
     display: grid;
     grid-template-columns: repeat(2, 1fr);
     gap: var(--spacing-sm);
   }
 
-  .card-grid .card {
+  .card-grid .card,
+  #issue-list .card,
+  #pull-list .card {
     margin-bottom: 0;
   }
 }