package profile

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

func TestFilesystemRepository_GetProfile(t *testing.T) {
	tmpDir, err := os.MkdirTemp("", "execution_profile_test")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(tmpDir)

	files, err := os.ReadDir("testdata")
	if err != nil {
		t.Fatalf("failed to read testdata: %v", err)
	}
	for _, f := range files {
		src := filepath.Join("testdata", f.Name())
		dst := filepath.Join(tmpDir, f.Name())
		data, err := os.ReadFile(src)
		if err != nil {
			t.Fatal(err)
		}
		if err := os.WriteFile(dst, data, 0644); err != nil {
			t.Fatal(err)
		}
	}

	repo := NewFilesystemRepository(tmpDir)
	ctx := context.Background()

	t.Run("valid local profile", func(t *testing.T) {
		p, err := repo.GetProfile(ctx, "local-default")
		if err != nil {
			t.Fatalf("expected no error, got %v", err)
		}
		if p.ID != "local-default" {
			t.Fatalf("unexpected id: %q", p.ID)
		}
		if p.Endpoint == "" || p.Model == "" {
			t.Fatalf("expected endpoint/model to be set: %+v", p)
		}
	})

	t.Run("valid profile with api_key_env", func(t *testing.T) {
		p, err := repo.GetProfile(ctx, "local-secure")
		if err != nil {
			t.Fatalf("expected no error, got %v", err)
		}
		if p.APIKeyEnv != "SCRIPTORIUM_API_KEY" {
			t.Fatalf("unexpected api_key_env: %q", p.APIKeyEnv)
		}
		if p.ReasoningEffort != "medium" {
			t.Fatalf("unexpected reasoning_effort: %q", p.ReasoningEffort)
		}
	})

	t.Run("invalid yaml", func(t *testing.T) {
		_, err := repo.GetProfile(ctx, "invalid_yaml")
		if !errors.Is(err, ErrInvalidYAML) {
			t.Fatalf("expected ErrInvalidYAML, got %v", err)
		}
	})

	t.Run("missing id", func(t *testing.T) {
		_, err := repo.GetProfile(ctx, "missing_id")
		if !errors.Is(err, ErrProfileNotFound) {
			t.Fatalf("expected ErrProfileNotFound, got %v", err)
		}
	})

	t.Run("missing endpoint", func(t *testing.T) {
		_, err := repo.GetProfile(ctx, "missing-endpoint")
		if !errors.Is(err, ErrInvalidProfile) {
			t.Fatalf("expected ErrInvalidProfile, got %v", err)
		}
	})

	t.Run("missing model", func(t *testing.T) {
		_, err := repo.GetProfile(ctx, "missing-model")
		if !errors.Is(err, ErrInvalidProfile) {
			t.Fatalf("expected ErrInvalidProfile, got %v", err)
		}
	})

	t.Run("unknown field", func(t *testing.T) {
		_, err := repo.GetProfile(ctx, "unknown_field")
		if !errors.Is(err, ErrInvalidYAML) {
			t.Fatalf("expected ErrInvalidYAML for strict decode unknown field, got %v", err)
		}
	})

	t.Run("raw api_key rejected", func(t *testing.T) {
		_, err := repo.GetProfile(ctx, "raw_api_key")
		if !errors.Is(err, ErrRawAPIKeyNotAllowed) {
			t.Fatalf("expected ErrRawAPIKeyNotAllowed, got %v", err)
		}
	})

	t.Run("profile not found", func(t *testing.T) {
		_, err := repo.GetProfile(ctx, "does-not-exist")
		if !errors.Is(err, ErrProfileNotFound) {
			t.Fatalf("expected ErrProfileNotFound, got %v", err)
		}
	})
}