package beads

import (
	"os"
	"path/filepath"
	"testing"
)

// TestNew verifies the constructor.
func TestNew(t *testing.T) {
	b := New("/some/path")
	if b == nil {
		t.Fatal("New returned nil")
	}
	if b.workDir != "/some/path" {
		t.Errorf("workDir = %q, want /some/path", b.workDir)
	}
}

// TestListOptions verifies ListOptions defaults.
func TestListOptions(t *testing.T) {
	opts := ListOptions{
		Status:   "open",
		Type:     "task",
		Priority: 1,
	}
	if opts.Status != "open" {
		t.Errorf("Status = %q, want open", opts.Status)
	}
}

// TestCreateOptions verifies CreateOptions fields.
func TestCreateOptions(t *testing.T) {
	opts := CreateOptions{
		Title:       "Test issue",
		Type:        "task",
		Priority:    2,
		Description: "A test description",
		Parent:      "gt-abc",
	}
	if opts.Title != "Test issue" {
		t.Errorf("Title = %q, want 'Test issue'", opts.Title)
	}
	if opts.Parent != "gt-abc" {
		t.Errorf("Parent = %q, want gt-abc", opts.Parent)
	}
}

// TestUpdateOptions verifies UpdateOptions pointer fields.
func TestUpdateOptions(t *testing.T) {
	status := "in_progress"
	priority := 1
	opts := UpdateOptions{
		Status:   &status,
		Priority: &priority,
	}
	if *opts.Status != "in_progress" {
		t.Errorf("Status = %q, want in_progress", *opts.Status)
	}
	if *opts.Priority != 1 {
		t.Errorf("Priority = %d, want 1", *opts.Priority)
	}
}

// TestIsBeadsRepo tests repository detection.
func TestIsBeadsRepo(t *testing.T) {
	// Test with a non-beads directory
	tmpDir, err := os.MkdirTemp("", "beads-test-*")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(tmpDir)

	b := New(tmpDir)
	// This should return false since there's no .beads directory
	// and bd list will fail
	if b.IsBeadsRepo() {
		// This might pass if bd handles missing .beads gracefully
		t.Log("IsBeadsRepo returned true for non-beads directory (bd might initialize)")
	}
}

// TestWrapError tests error wrapping.
func TestWrapError(t *testing.T) {
	b := New("/test")

	tests := []struct {
		stderr   string
		wantErr  error
		wantNil  bool
	}{
		{"not a beads repository", ErrNotARepo, false},
		{"No .beads directory found", ErrNotARepo, false},
		{".beads directory not found", ErrNotARepo, false},
		{"sync conflict detected", ErrSyncConflict, false},
		{"CONFLICT in file.md", ErrSyncConflict, false},
		{"Issue not found: gt-xyz", ErrNotFound, false},
		{"gt-xyz not found", ErrNotFound, false},
	}

	for _, tt := range tests {
		err := b.wrapError(nil, tt.stderr, []string{"test"})
		if tt.wantNil {
			if err != nil {
				t.Errorf("wrapError(%q) = %v, want nil", tt.stderr, err)
			}
		} else {
			if err != tt.wantErr {
				t.Errorf("wrapError(%q) = %v, want %v", tt.stderr, err, tt.wantErr)
			}
		}
	}
}

// Integration test that runs against real bd if available
func TestIntegration(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping integration test in short mode")
	}

	// Find a beads repo (use current directory if it has .beads)
	cwd, err := os.Getwd()
	if err != nil {
		t.Fatal(err)
	}

	// Walk up to find .beads
	dir := cwd
	for {
		if _, err := os.Stat(filepath.Join(dir, ".beads")); err == nil {
			break
		}
		parent := filepath.Dir(dir)
		if parent == dir {
			t.Skip("no .beads directory found in path")
		}
		dir = parent
	}

	b := New(dir)

	// Test List
	t.Run("List", func(t *testing.T) {
		issues, err := b.List(ListOptions{Status: "open"})
		if err != nil {
			t.Fatalf("List failed: %v", err)
		}
		t.Logf("Found %d open issues", len(issues))
	})

	// Test Ready
	t.Run("Ready", func(t *testing.T) {
		issues, err := b.Ready()
		if err != nil {
			t.Fatalf("Ready failed: %v", err)
		}
		t.Logf("Found %d ready issues", len(issues))
	})

	// Test Blocked
	t.Run("Blocked", func(t *testing.T) {
		issues, err := b.Blocked()
		if err != nil {
			t.Fatalf("Blocked failed: %v", err)
		}
		t.Logf("Found %d blocked issues", len(issues))
	})

	// Test Show (if we have issues)
	t.Run("Show", func(t *testing.T) {
		issues, err := b.List(ListOptions{})
		if err != nil {
			t.Fatalf("List failed: %v", err)
		}
		if len(issues) == 0 {
			t.Skip("no issues to show")
		}

		issue, err := b.Show(issues[0].ID)
		if err != nil {
			t.Fatalf("Show(%s) failed: %v", issues[0].ID, err)
		}
		t.Logf("Showed issue: %s - %s", issue.ID, issue.Title)
	})
}