package kubernetes

import (
	"errors"
	"testing"

	"github.com/orchard9/rdev/internal/sdlc"
)

func TestMapExecError(t *testing.T) {
	exec := &SDLCExecutor{namespace: "test"}
	baseErr := errors.New("exit status 1")

	tests := []struct {
		name    string
		stderr  string
		want    error
		wantMsg string
	}{
		{
			name:   "not initialized",
			stderr: "Error: sdlc not initialized: run 'sdlc init'",
			want:   sdlc.ErrNotInitialized,
		},
		{
			name:   "feature not found",
			stderr: "Error: feature not found",
			want:   sdlc.ErrFeatureNotFound,
		},
		{
			name:   "feature already exists",
			stderr: "Error: feature already exists",
			want:   sdlc.ErrFeatureExists,
		},
		{
			name:   "invalid phase transition",
			stderr: "Error: invalid phase transition: cannot move from draft to implementation (backward)",
			want:   sdlc.ErrInvalidTransition,
		},
		{
			name:   "invalid phase",
			stderr: "Error: invalid phase: xyz",
			want:   sdlc.ErrInvalidPhase,
		},
		{
			name:   "task not found",
			stderr: "Error: task not found",
			want:   sdlc.ErrTaskNotFound,
		},
		{
			name:   "artifact not found",
			stderr: "Error: artifact not found",
			want:   sdlc.ErrArtifactNotFound,
		},
		{
			name:   "invalid slug",
			stderr: "Error: invalid slug: must be lowercase alphanumeric with hyphens",
			want:   sdlc.ErrInvalidSlug,
		},
		{
			name:   "invalid artifact type",
			stderr: "Error: invalid artifact type: foobar",
			want:   sdlc.ErrInvalidArtifact,
		},
		{
			name:    "unknown error with stderr",
			stderr:  "something unexpected happened",
			wantMsg: "sdlc exec: something unexpected happened: exit status 1",
		},
		{
			name:    "unknown error without stderr",
			stderr:  "",
			wantMsg: "sdlc exec: exit status 1",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := exec.mapExecError(tt.stderr, baseErr)
			if tt.want != nil {
				if !errors.Is(got, tt.want) {
					t.Errorf("mapExecError() = %v, want %v", got, tt.want)
				}
			} else if tt.wantMsg != "" {
				if got.Error() != tt.wantMsg {
					t.Errorf("mapExecError() message = %q, want %q", got.Error(), tt.wantMsg)
				}
			}
		})
	}
}

func TestMapExecError_WhitespaceHandling(t *testing.T) {
	exec := &SDLCExecutor{namespace: "test"}
	baseErr := errors.New("exit status 1")

	// Stderr with leading/trailing whitespace
	got := exec.mapExecError("  feature not found\n  ", baseErr)
	if !errors.Is(got, sdlc.ErrFeatureNotFound) {
		t.Errorf("expected ErrFeatureNotFound, got %v", got)
	}
}

func TestNewSDLCExecutor(t *testing.T) {
	exec := NewSDLCExecutor(SDLCExecutorConfig{
		Namespace: "rdev",
	})
	if exec.namespace != "rdev" {
		t.Errorf("namespace = %q, want %q", exec.namespace, "rdev")
	}
	if exec.logger == nil {
		t.Error("logger should not be nil")
	}
}