package jobs

import (
	"database/sql"
	"io"
	"os"
	"os/exec"
	"path"
	"path/filepath"
	"testing"

	"quyun/v2/app/commands/testx"
	"quyun/v2/app/jobs/args"
	"quyun/v2/database"
	"quyun/v2/database/fields"
	"quyun/v2/database/models"
	"quyun/v2/pkg/consts"
	"quyun/v2/providers/storage"

	"github.com/riverqueue/river"
	"github.com/rogeecn/fabfile"
	. "github.com/smartystreets/goconvey/convey"
	"github.com/stretchr/testify/suite"
	"go.ipao.vip/atom/contracts"
	"go.ipao.vip/gen/types"
	"go.uber.org/dig"
)

type MediaProcessWorkerTestSuiteInjectParams struct {
	dig.In

	DB       *sql.DB
	Initials []contracts.Initial `group:"initials"`
	Storage  *storage.Storage
}

type MediaProcessWorkerLocalSuite struct {
	suite.Suite
	MediaProcessWorkerTestSuiteInjectParams
}

type MediaProcessWorkerS3Suite struct {
	suite.Suite
	MediaProcessWorkerTestSuiteInjectParams
}

func Test_MediaProcessWorkerLocal(t *testing.T) {
	originEnv := os.Getenv("ENV_LOCAL")
	if err := os.Setenv("ENV_LOCAL", "test"); err != nil {
		t.Fatalf("set ENV_LOCAL failed: %v", err)
	}
	t.Cleanup(func() {
		if originEnv == "" {
			_ = os.Unsetenv("ENV_LOCAL")
		} else {
			_ = os.Setenv("ENV_LOCAL", originEnv)
		}
	})

	providers := testx.Default()
	testx.Serve(providers, t, func(p MediaProcessWorkerTestSuiteInjectParams) {
		suite.Run(t, &MediaProcessWorkerLocalSuite{MediaProcessWorkerTestSuiteInjectParams: p})
	})
}

func Test_MediaProcessWorkerS3(t *testing.T) {
	originEnv := os.Getenv("ENV_LOCAL")
	if err := os.Setenv("ENV_LOCAL", "minio"); err != nil {
		t.Fatalf("set ENV_LOCAL failed: %v", err)
	}
	t.Cleanup(func() {
		if originEnv == "" {
			_ = os.Unsetenv("ENV_LOCAL")
		} else {
			_ = os.Setenv("ENV_LOCAL", originEnv)
		}
	})

	providers := testx.Default()
	testx.Serve(providers, t, func(p MediaProcessWorkerTestSuiteInjectParams) {
		suite.Run(t, &MediaProcessWorkerS3Suite{MediaProcessWorkerTestSuiteInjectParams: p})
	})
}

func (s *MediaProcessWorkerLocalSuite) Test_Work_Local() {
	Convey("Work Local", s.T(), func() {
		if _, err := exec.LookPath("ffmpeg"); err != nil {
			s.T().Skip("ffmpeg not installed")
		}

		ctx := s.T().Context()
		database.Truncate(ctx, s.DB, models.TableNameMediaAsset)

		tempDir := s.T().TempDir()
		fixturePath := fabfile.MustFind("fixtures/demo.mp4")
		objectKey := path.Join("quyun", "public", "demo.mp4")
		dstPath := filepath.Join(tempDir, filepath.FromSlash(objectKey))
		So(copyFile(fixturePath, dstPath), ShouldBeNil)

		info, err := os.Stat(dstPath)
		So(err, ShouldBeNil)

		So(s.Storage, ShouldNotBeNil)
		s.Storage.Config.Type = "local"
		s.Storage.Config.LocalPath = tempDir

		asset := &models.MediaAsset{
			TenantID:  1,
			UserID:    1,
			Type:      consts.MediaAssetTypeVideo,
			Status:    consts.MediaAssetStatusUploaded,
			Provider:  s.Storage.Provider(),
			Bucket:    s.Storage.Bucket(),
			ObjectKey: objectKey,
			Meta: types.NewJSONType(fields.MediaAssetMeta{
				Filename: "demo.mp4",
				Size:     info.Size(),
			}),
		}
		So(models.MediaAssetQuery.WithContext(ctx).Create(asset), ShouldBeNil)

		worker := &MediaProcessWorker{storage: s.Storage}
		err = worker.Work(ctx, &river.Job[args.MediaAssetProcessJob]{
			Args: args.MediaAssetProcessJob{
				TenantID: asset.TenantID,
				AssetID:  asset.ID,
			},
		})
		So(err, ShouldBeNil)

		updated, err := models.MediaAssetQuery.WithContext(ctx).
			Where(models.MediaAssetQuery.ID.Eq(asset.ID)).
			First()
		So(err, ShouldBeNil)
		So(updated.Status, ShouldEqual, consts.MediaAssetStatusReady)

		tbl, q := models.MediaAssetQuery.QueryContext(ctx)
		cover, err := q.Where(
			tbl.SourceAssetID.Eq(asset.ID),
			tbl.Type.Eq(consts.MediaAssetTypeImage),
		).First()
		So(err, ShouldBeNil)
		So(cover.ObjectKey, ShouldNotBeBlank)

		coverPath := filepath.Join(tempDir, filepath.FromSlash(cover.ObjectKey))
		_, err = os.Stat(coverPath)
		So(err, ShouldBeNil)
	})
}

func (s *MediaProcessWorkerS3Suite) Test_Work_S3() {
	Convey("Work S3", s.T(), func() {
		if _, err := exec.LookPath("ffmpeg"); err != nil {
			s.T().Skip("ffmpeg not installed")
		}

		ctx := s.T().Context()
		database.Truncate(ctx, s.DB, models.TableNameMediaAsset)

		So(s.Storage, ShouldNotBeNil)
		s.Storage.Config.Type = "s3"
		s.Storage.Config.Endpoint = "http://127.0.0.1:9000"
		s.Storage.Config.AccessKey = "minioadmin"
		s.Storage.Config.SecretKey = "minioadmin"
		s.Storage.Config.Region = "us-east-1"
		s.Storage.Config.Bucket = "quyun-assets"
		s.Storage.Config.PathStyle = true

		fixturePath := fabfile.MustFind("fixtures/demo.mp4")
		objectKey := path.Join("quyun", "public", "demo.mp4")
		err := s.Storage.PutObject(ctx, objectKey, fixturePath, "video/mp4")
		if err != nil {
			s.T().Skipf("minio not available: %v", err)
		}
		s.T().Cleanup(func() {
			_ = s.Storage.Delete(objectKey)
		})

		info, err := os.Stat(fixturePath)
		So(err, ShouldBeNil)

		asset := &models.MediaAsset{
			TenantID:  1,
			UserID:    1,
			Type:      consts.MediaAssetTypeVideo,
			Status:    consts.MediaAssetStatusUploaded,
			Provider:  "s3",
			Bucket:    s.Storage.Config.Bucket,
			ObjectKey: objectKey,
			Meta: types.NewJSONType(fields.MediaAssetMeta{
				Filename: "demo.mp4",
				Size:     info.Size(),
			}),
		}
		So(models.MediaAssetQuery.WithContext(ctx).Create(asset), ShouldBeNil)

		worker := &MediaProcessWorker{storage: s.Storage}
		err = worker.Work(ctx, &river.Job[args.MediaAssetProcessJob]{
			Args: args.MediaAssetProcessJob{
				TenantID: asset.TenantID,
				AssetID:  asset.ID,
			},
		})
		So(err, ShouldBeNil)

		updated, err := models.MediaAssetQuery.WithContext(ctx).
			Where(models.MediaAssetQuery.ID.Eq(asset.ID)).
			First()
		So(err, ShouldBeNil)
		So(updated.Status, ShouldEqual, consts.MediaAssetStatusReady)

		tbl, q := models.MediaAssetQuery.QueryContext(ctx)
		cover, err := q.Where(
			tbl.SourceAssetID.Eq(asset.ID),
			tbl.Type.Eq(consts.MediaAssetTypeImage),
		).First()
		So(err, ShouldBeNil)
		So(cover.ObjectKey, ShouldNotBeBlank)
		So(cover.Provider, ShouldEqual, "s3")

		s.T().Cleanup(func() {
			if cover.ObjectKey != "" {
				_ = s.Storage.Delete(cover.ObjectKey)
			}
		})

		downloadDir := s.T().TempDir()
		downloadPath := filepath.Join(downloadDir, "cover.jpg")
		So(s.Storage.Download(ctx, cover.ObjectKey, downloadPath), ShouldBeNil)

		downloadInfo, err := os.Stat(downloadPath)
		So(err, ShouldBeNil)
		So(downloadInfo.Size(), ShouldBeGreaterThan, 0)
	})
}

func copyFile(srcPath, dstPath string) error {
	if err := os.MkdirAll(filepath.Dir(dstPath), 0o755); err != nil {
		return err
	}
	src, err := os.Open(srcPath)
	if err != nil {
		return err
	}
	defer src.Close()

	dst, err := os.Create(dstPath)
	if err != nil {
		return err
	}
	defer dst.Close()

	if _, err := io.Copy(dst, src); err != nil {
		return err
	}
	return nil
}