/**---------------------
 * @name tykayn Rangement
 * @description Rangement sorts and rename files depending on their exif data
 * @contact contact@cipherbliss.com
 --------------------- */
/** ---------------------
 libs
 --------------------- */
import fs from 'node-fs'
import minimist from 'minimist'
import log from 'loglevel'
import path from 'node:path'
/** ---------------------
 custom utilities and configuration
 --------------------- */
import rangement_instance from './conf/configs.js'
import {
	TestFindFormattedDate,
	TestScreenShotIsFoundAndRenamed,
	TestTagsAreDetectedInFileName
} from './utils/testFunctions.mjs'
import finder from './utils/finder.mjs'

let mini_arguments

log.setLevel(rangement_instance.log_level)
log.info(' ')

function parseArguments () {
	mini_arguments = minimist(process.argv.slice(2))
	log.debug('arguments', mini_arguments)
}

/**
 * if there is no original file name free text into the new name, append it to the free text part
 * @param originalFileName
 * @param fileMixedNewName
 */
function addOriginalFileNameIfMissing (originalFileName, fileMixedNewName) {

	if (!fileMixedNewName.includes(originalFileName)) {
		let properties = finder.destructurateFileName(fileMixedNewName)
		return properties.freeText + ' ' + originalFileName
	} else {
		return fileMixedNewName
	}
}

function renameFile (originalFileName, fileMixedNewName) {
	if (rangement_instance.keepOriginalNameInRename) {
		fileMixedNewName = addOriginalFileNameIfMissing(originalFileName, fileMixedNewName)
	}

	fs.rename(originalFileName, fileMixedNewName, function (err) {
		log.info('name changed', fileMixedNewName)
		if (err) {
			log.info('rename ERROR: ' + err)
		} else {
			// otherRenames.push(originalFileName)
			otherRenames.push(fileMixedNewName)

			finder.statistics['filesModified']++
		}
	})
}

export function makeFileNameFromProperties (fileProperties) {

	let tagPlace = ''
	log.info('fileProperties.tags', fileProperties.tags)
	if (fileProperties.tags.length && rangement_instance.keepTags) {
		tagPlace = ' ' + rangement_instance.tagSectionSeparator + ' ' + fileProperties.tags.join(rangement_instance.tagSeparator)
	}
	console.log('fileProperties.dateStampExif', fileProperties.dateStampExif)
	let newName = ''
		+ fileProperties.dateStampExif
		+ ' '
		+ (rangement_instance.keepFreeText ? fileProperties.freeText : '')
		+ tagPlace
		+ fileProperties.extension

	if (rangement_instance.replaceUnderscoreWithSpaces) {
		newName = newName.replace('_', ' ')
	}

	newName = finder.cleanSpaces(newName)

	return newName
}

let otherRenames = []

function shouldWeChangeName (structureForFile) {
	log.info(' ______ shouldWeChangeName ', structureForFile.fileNameOriginal)
	let newName = makeFileNameFromProperties(structureForFile)
	log.debug('newName', newName)
	if (structureForFile.fileNameOriginal !== newName && !otherRenames.includes(newName)) {

		log.info('\n ancien nom :', structureForFile.fileNameOriginal)

		log.info(' nouveau nom:', newName)
		if (!mini_arguments['dry-run']) {

			renameFile(structureForFile.fullPath, structureForFile.folderPath + newName)
		} else {
			log.info('no renaming for real, this is a dry run')
			finder.statistics['filesNotModified']++
		}
	} else {
		log.info(' rien à changer')
	}
}

/**
 * guess file name on one file which is not a directory
 * @param fullPath
 */
function guessFileNameOnOnefile (fullPath) {

	log.info('go guess file name on file: ', fullPath)
	fs.stat(fullPath, (err, stats) => {

		if (err) {
			log.error('échec fichier', err)
			log.error('ce fichier n existe pas: ', fullPath)
			return
		} else {

			let structureForFile = finder.destructurateFileName(fullPath)

			// examiner les infos exif de chaque fichier pour proposer un nouveau nom
			if (!structureForFile.dateStampInFileNameOriginal) {
				log.info('    le nom de fichier "' + structureForFile.freeText + '" ne contient pas de date formatée au début')

				finder.findExifCreationDate(structureForFile.fullPath)
					.then(data => {
							log.info(' ... chercher la date de création : "' + structureForFile.freeText + '"')
							let foundDate = finder.findEarliestDateInExifData(data)

							log.info(' =>>>>>>> foundDate : ', foundDate)
							if (foundDate) {
								structureForFile.dateStampExif = foundDate
							} else {
								log.info('pas de date trouvée dans le nom')
							}
							shouldWeChangeName(structureForFile)
						}
						,
						(error) => {
							log.warn('/////////// Error in reading exif of file: ' + error.message)
							return ''
						})
			}

		}
	})
}

let expandedFileList = []
let cwd = path.dirname(process.cwd()) + '/' + path.basename(process.cwd())
console.log('cwd', cwd)

function guessFileNameOnAllFilesFromArguments () {

	// parcourir les fichiers
	log.debug('liste des fichiers', mini_arguments._)
	let fileList = mini_arguments._

	// test file exists
	fileList.forEach(fullPath => {
			log.debug('file list element: ', fullPath)
			// parcourir les dossiers
			isFolderOrFile(`${fullPath}`)
		}
	)

	log.info('expanded file list :', expandedFileList)
	expandedFileList.forEach(filePath => guessFileNameOnOnefile(filePath))

	if (rangement_instance.reportStatistics || mini_arguments.stats) {
		finder.reportStatistics()
	}

}

function readSubdirectories (baseDir) {
	const newGlob = baseDir
	fs.readdir(baseDir, (err, files) => {
		if (err) throw err

		console.log('readSubdirectories - files', files)
		files.forEach((subDirOrFile) => {
			const newFullPath = cwd + '/' + subDirOrFile

			if (fs.existsSync(newFullPath)) {
				const s = fs.statSync(newFullPath)

				if (s.isFile()) {
					expandedFileList.push(cwd + '/' + subDirOrFile)
				}
			}
		})
	})
}

function isFolderOrFile (fileName) {
	const stat = fs.statSync(fileName)

	if (stat.isDirectory()) {
		let fileList = readSubdirectories(fileName)
		console.log('fileList in directory ', fileName, '\n', fileList)
		if (fileList) {
			expandedFileList.push(...fileList)
		}
	} else if (stat.isFile()) {
		expandedFileList.push(fileName)
	}
}

parseArguments()

guessFileNameOnAllFilesFromArguments()

// run tests
if (rangement_instance.enableTestsLocally) {

	TestTagsAreDetectedInFileName()
	TestFindFormattedDate()
	TestScreenShotIsFoundAndRenamed()
}