/**---------------------
 * @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 './configs.mjs'
import {
    TestFindFormattedDate,
    TestScreenShotIsFoundAndRenamed,
    TestTagsAreDetectedInFileName
} from './testFunctions.mjs'
import finder from './finder.mjs'

import exiftool from "node-exiftool";

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)
}

function addOriginalFileNameIfMissing(originalFileName, fileMixedNewName) {

    // const ep = new exiftool.ExiftoolProcess()
    //
    // ep
    //     .open(fileMixedNewName)
    //     .then(() => ep.writeMetadata(fileMixedNewName, {
    //         'OriginalFileName+': originalFileName,
    //     }))
    //     .then(console.log, console.error)
    //     .then(() => ep.close())
    //     .catch(console.error)
}

function renameFile(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)

            addOriginalFileNameIfMissing(originalFileName, fileMixedNewName)
            // rangement_instance.statistics['filesModified']++
        }
    })
}

function appendFileName(fileProperties, newText) {
    fileProperties.freeText = finder.cleanSpaces(fileProperties.freeText + ' ' + newText)
    return fileProperties
}

function prependFileName(fileProperties, newText) {
    fileProperties.freeText = finder.cleanSpaces(newText + ' ' + fileProperties.freeText)
    return fileProperties
}

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 = newName.replace('  ', '')

    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')
        }
    } 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 => {
            // parcourir les dossiers
            isFolderOrFile(`${fullPath}`)
        }
    )

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

}

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(cwd + '/' + 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(cwd + '/' + fileName)
    }
}

parseArguments()

guessFileNameOnAllFilesFromArguments()


// run tests
if (rangement_instance.enableTestsLocally) {

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