package documenttext

import (
	"context"
	"testing"

	"queryorchestration/internal/database/repository"
	"queryorchestration/internal/document"

	"github.com/stretchr/testify/require"

	"github.com/google/uuid"
	"github.com/pashagolub/pgxmock/v3"
	"github.com/stretchr/testify/assert"
)

func TestExtract(t *testing.T) {
	ctx := context.Background()
	pool, err := pgxmock.NewPool()
	require.NoError(t, err)

	cfg := &DocTextConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)

	svc := Service{
		cfg: cfg,
	}

	t.Run("successful clean", func(t *testing.T) {
		id := uuid.New()
		inloc := document.Location{
			Bucket: "bucket_name",
			Key:    "/i/am/here",
		}

		cleanId := uuid.New()
		dbCleanId := cleanId
		mimeType := "application/pdf"
		dbmimetype := repository.NullCleanmimetype{
			Valid:         true,
			Cleanmimetype: repository.Cleanmimetype(mimeType),
		}
		pool.ExpectQuery("name: GetCleanEntry :one").WithArgs(dbCleanId).WillReturnRows(
			pgxmock.NewRows([]string{"id", "documentId", "bucket", "key", "version", "mimetype", "fail"}).
				AddRow(dbCleanId, id, &inloc.Bucket, &inloc.Key, int64(1), dbmimetype, repository.NullCleanfailtype{}),
		)
		textId := uuid.New()
		pool.ExpectBegin()
		pool.ExpectQuery("name: GetDocumentTextExtractionByHash :one").WithArgs(dbCleanId, "example").WillReturnRows(
			pgxmock.NewRows([]string{"id", "documentId", "bucket", "key", "version", "hash", "cleanEntryId"}),
		)
		pool.ExpectQuery("name: AddDocumentText :one").WithArgs(inloc.Bucket, inloc.Key, dbCleanId, "example").
			WillReturnRows(
				pgxmock.NewRows([]string{"id"}).
					AddRow(textId),
			)
		pool.ExpectExec("name: AddDocumentTextEntry :exec").WithArgs(textId, pgxmock.AnyArg()).
			WillReturnResult(pgxmock.NewResult("", 1))
		pool.ExpectCommit()

		err = svc.extract(ctx, cleanId)
		require.NoError(t, err)
	})
	t.Run("fail clean", func(t *testing.T) {
		id := uuid.New()

		cleanId := uuid.New()
		fail := repository.NullCleanfailtype{
			Valid:         true,
			Cleanfailtype: repository.CleanfailtypeInvalidMimetype,
		}
		pool.ExpectQuery("name: GetCleanEntry :one").WithArgs(id).WillReturnRows(
			pgxmock.NewRows([]string{"id", "documentId", "bucket", "key", "version", "mimetype", "fail"}).
				AddRow(cleanId, id, nil, nil, int64(1), nil, fail),
		)

		err = svc.extract(ctx, id)
		assert.Error(t, err)
	})
}

func TestExecuteExtraction(t *testing.T) {
	pool, err := pgxmock.NewPool()
	require.NoError(t, err)

	cfg := &DocTextConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)

	svc := Service{
		cfg: cfg,
	}

	ctx := context.Background()
	id := uuid.New()
	location := document.Location{
		Bucket: "buck",
		Key:    "key",
	}
	extract := extraction{
		TextLocation: location,
		Hash:         "example",
	}
	dbmimetype := repository.NullCleanmimetype{
		Valid:         true,
		Cleanmimetype: repository.CleanmimetypeApplicationPdf,
	}

	pool.ExpectQuery("name: GetCleanEntry :one").WithArgs(id).WillReturnRows(
		pgxmock.NewRows([]string{"id", "documentId", "bucket", "key", "version", "mimetype", "fail"}).
			AddRow(uuid.New(), id, &location.Bucket, &location.Key, int32(1), dbmimetype, repository.NullCleanfailtype{}),
	)

	outloc, err := svc.executeExtraction(ctx, id)
	require.NoError(t, err)
	assert.EqualExportedValues(t, extract, *outloc)
}

func TestStoreExtraction(t *testing.T) {
	pool, err := pgxmock.NewPool()
	require.NoError(t, err)

	cfg := &DocTextConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)

	svc := Service{
		cfg: cfg,
	}

	ctx := context.Background()

	t.Run("not existing", func(t *testing.T) {
		cleanId := uuid.New()
		dbCleanId := cleanId
		textId := uuid.New()
		extract := extraction{
			TextLocation: document.Location{
				Bucket: "buck",
				Key:    "key",
			},
			Hash: "example",
		}

		pool.ExpectBegin()
		pool.ExpectQuery("name: GetDocumentTextExtractionByHash :one").WithArgs(dbCleanId, extract.Hash).WillReturnRows(
			pgxmock.NewRows([]string{"id", "documentId", "bucket", "key", "version", "hash", "cleanEntryId"}),
		)
		pool.ExpectQuery("name: AddDocumentText :one").WithArgs(extract.TextLocation.Bucket, extract.TextLocation.Key, dbCleanId, "example").
			WillReturnRows(
				pgxmock.NewRows([]string{"id"}).
					AddRow(textId),
			)
		pool.ExpectExec("name: AddDocumentTextEntry :exec").WithArgs(textId, pgxmock.AnyArg()).
			WillReturnResult(pgxmock.NewResult("", 1))
		pool.ExpectCommit()

		err = svc.storeExtraction(ctx, cleanId, &extract)
		require.NoError(t, err)
	})
}