package main

import (
	"flag"
	"fmt"
	"os"
	"path/filepath"
	"regexp"
	logger "git.site.quack-lab.dev/dave/cylogger"
)

func main() {
	flag.Parse()
	logger.InitFlag()
	if flag.NArg() == 0 {
		fmt.Println("Usage: cleaner <files>")
		os.Exit(1)
	}
	// regex to match "2025-07-08"
	re := regexp.MustCompile(`\d{4}-\d{2}-\d{2}`)
	editedRe := regexp.MustCompile(`_edited_\d{5}`)

	for _, file := range flag.Args() {
		filelog := logger.Default.WithPrefix(file)
		filelog.Info("Processing file")

		info, err := os.Stat(file)
		if err != nil {
			filelog.Error("ERROR: %v\n", err)
			continue
		}
		if info.IsDir() {
			filelog.Info("SKIP (directory): %s\n", file)
			continue
		}

		name := filepath.Base(file)
		match := re.FindStringSubmatch(name)
		filelog.Debug("Match: %v", match)
		if match == nil {
			filelog.Info("SKIP (no date pattern): %s\n", name)
			continue
		}
		
		namePart := match[0]
		editMatch := editedRe.FindStringSubmatch(name)
		filelog.Debug("Edit match: %v", editMatch)
		if editMatch != nil {
			namePart = namePart + editMatch[0]
			filelog.Info("Video has edited part, new name: %s", namePart)
		}

		newName := namePart + filepath.Ext(name)
		filelog.Debug("New name: %s", newName)
		if name == newName {
			filelog.Info("SKIP (already named): %s\n", name)
			continue
		}

		filelog.Debug("Checking if target exists: %s", newName)
		if _, err := os.Stat(newName); err == nil {
			filelog.Info("SKIP (target exists): %s -> %s\n", name, newName)
			continue
		}

		filelog.Info("Renaming to: %s", newName)
		err = os.Rename(name, newName)
		if err != nil {
			filelog.Error("ERROR renaming %s: %v\n", name, err)
		} else {
			filelog.Info("RENAMED: %s -> %s\n", name, newName)
		}
		filelog.Info("All done")
		continue
	}
}