#!/usr/bin/env node

'use strict';

const figlet = require('figlet');
const chalk = require('chalk');
const fs = require('fs');

function recFindByExt(base, ext, files, result) {
    files = files || fs.readdirSync(base)
    result = result || []

    files.forEach(
        function (file) {
            var newbase = path.join(base,file)
            if ( fs.statSync(newbase).isDirectory() ) {
                result = recFindByExt(newbase,ext,fs.readdirSync(newbase),result)
            } else {
                if ( file.substr(-1*(ext.length+1)) == '.' + ext ) {
                    result.push(newbase)
                }
            }
        }
    )
    return result
}

function pprint(obj) {
    console.log("%o", obj)
}

function outputManifest (path, fileList) {
    if(!fileList) {
        l = []
    }
    const output = {
        version: 1,
        '$id': 'berlin.sneak.ns.webstatus.manifest-v1',
        manifest: fileList
    }
    fs.writeFileSync(path + ".tmp", JSON.stringify(output))
    fs.renameSync(path + ".tmp", path)
}

function main() {
    const commander = require('commander');
    const program = new commander.Command();
    program.version('0.0.1', '-v --version', 'output current version');
    program
        .option('-s --source <directory>', 'directory to scan/write', '.')
        .option('-v --verbose', 'verbose output', false)
        .option('-q --quiet', 'no output', false)

    program.parse(process.argv);

    const print = (x) => {
        if(program.quiet) {
            return
        }
        console.log(x)
    }

    const log = {}

    log.info = (x) => {
        print(chalk.blue(x))
    }

    log.die = (x) => {
        print(chalk.bold.red('error: ' + x))
        print(chalk.bold.red('exiting.'))
        process.exit(-1)
    }

    log.huge = (x) => {
        var f = figlet.textSync(x, {
            font: 'Red Phoenix',
            horizontalLayout: 'default',
            verticalLayout: 'default'
        })
        print(chalk.red(f))
    }

    log.huge('webstatus')
    //const dir = program.source
    //pprint(program)
    if(!fs.lstatSync(program.source).isDirectory()) {
        log.die(`${program.source} is not a directory`)
    } else {
        log.info(`scanning ${program.source} for images...`)
    }

    var fileList = []
    var manifestFilename = program.source + '/webstatus.manifest.json'

    //FIXME scan for files
    //
    log.info(`writing ${fileList.length} entries to manifest ${manifestFilename}`)
    outputManifest(manifestFilename, fileList)

    log.die("unimplemented")
}

main();