package cleanup

import (
	"context"
	"downloader/internal/core/ports/download_request"
	"downloader/internal/core/ports/fileorchestrator"
	"go.uber.org/zap"
	"time"
)

type cleanUp struct {
	repository download_request.Repository
	logger     *zap.SugaredLogger
	fo         *fileorchestrator.FileOrchestrator
}

func New(repository download_request.Repository, logger *zap.SugaredLogger, fo *fileorchestrator.FileOrchestrator) *cleanUp {
	return &cleanUp{repository: repository, logger: logger, fo: fo}
}

func (c *cleanUp) RunOnSchedule() {
	ctx := context.TODO()
	go func() {
		for true {
			requests, err := c.repository.GetOldOrStuck(ctx)
			if err != nil {
				c.logger.Warn("could not process old or stuck in-progress jobs")
				time.Sleep(5 * time.Minute)
				continue
			}

			c.logger.Debugw("Cleaning up downloads",
				"downloads", requests)

			for _, request := range requests {
				basePath, err := c.fo.Begin(request.Link)
				if err != nil {
					c.logger.Warnw("could not process request",
						"downloadId", request.ID)
					continue
				}

				c.fo.CleanUp(basePath)
			}
			_ = c.repository.BatchDelete(ctx, requests)

			time.Sleep(time.Minute)
		}
	}()
}