const gulp = require('gulp');

const del = require('del');

const zip = require('gulp-zip');

const merge = require('merge-stream');

const seq = require('run-sequence');

const exec = require('child_process').execSync;

const minimist = require('minimist');

const template = require('gulp-template');

const rename = require('gulp-rename');

const appBuildFolder = 'app-client/dist';

const moduleFolder = 'corpus_module';

const moduleBuildFolder = 'dist';

const drupalSrcFolder = 'drupal';

const drupalDestFolder = '../build/root/var/www/corpusdelaparole/drupal';

const buildDestFolder = drupalDestFolder + '/sites/all/modules/' + moduleFolder;

const options = minimist(process.argv.slice(2), {string: "version"});

if(!options.version) {

    return process.exit(2);

}

var buildOption = "--prod";

var environment = "production";

var corpusBackUrl = "corpus-back";

if(options.prod) {

    buildOption = "--prod";

    environment = "production";

    corpusBackUrl = "corpus-back";

} else if(options.dev) {

    buildOption = "--dev";

    environment = "development";

    corpusBackUrl = "corpus-app";

}

gulp.task('build-ember', function(cb) {

    exec('npm install', {

        cwd: '../app-client',

        stdio:[0,1,2]

    });

    exec('node_modules/.bin/bower install', {

        cwd: '../app-client',

        stdio:[0,1,2]

    });

    exec('node_modules/.bin/ember build '+buildOption, {

        cwd: '../app-client',

        stdio:[0,1,2]

    });

});

gulp.task('clean', function() {

    return del([

        moduleBuildFolder+'/'+moduleFolder+'/**/*',

        moduleBuildFolder+'/**/*',

    ]);

});

gulp.task('copy-module', function () {

    var moduleFiles = gulp.src([moduleFolder+'/*', '!'+moduleFolder+'/*.tmpl'])

        .pipe(gulp.dest(moduleBuildFolder+'/'+moduleFolder));

    var templateValues = {

        corpus_back_url: corpusBackUrl,

        version: options.version,

        environment: environment

    };

    var tmplModuleFile = gulp.src(moduleFolder+'/corpus.module.tmpl')

        .pipe(template(templateValues))

        .pipe(rename("corpus.module"))

        .pipe(gulp.dest(moduleBuildFolder+'/'+moduleFolder));

    var assetsFiles = gulp.src(appBuildFolder+'/assets/**/*')

        .pipe(gulp.dest(moduleBuildFolder+'/'+moduleFolder+'/app-client/assets'));

    var fontsFiles = gulp.src(appBuildFolder+'/fonts/**/*')

        .pipe(gulp.dest(moduleBuildFolder+'/'+moduleFolder+'/app-client/fonts'));

    return merge(moduleFiles, tmplModuleFile, assetsFiles, fontsFiles);

});

gulp.task('zip-module', function() {

    return gulp.src(moduleBuildFolder+'/'+moduleFolder+'/**/*')

        .pipe(zip(moduleFolder+'.zip'))

        .pipe(gulp.dest(moduleBuildFolder));

})

gulp.task('default', function(cb) {

    seq('clean', 'copy-module', function (err) {

      //if any error happened in the previous tasks, exit with a code > 0

      if (err) {

        var exitCode = 2;

        console.log('[ERROR] gulp build task failed', err);

        console.log('[FAIL] gulp build task failed - exiting with code ' + exitCode);

        return process.exit(exitCode);

      }

      else {

        return cb();

      }

    });

});

gulp.task('zip', function(cb) {

    seq('clean', 'copy-module', 'zip-module', function (err) {

      //if any error happened in the previous tasks, exit with a code > 0

      if (err) {

        var exitCode = 2;

        console.log('[ERROR] gulp build task failed', err);

        console.log('[FAIL] gulp build task failed - exiting with code ' + exitCode);

        return process.exit(exitCode);

      }

      else {

        return cb();

      }

    });

});

gulp.task('do-copy-build', function(cb) {

    return gulp.src(moduleBuildFolder+'/'+moduleFolder+'/**/*')

        .pipe(gulp.dest(buildDestFolder));

});

gulp.task('copy-drupal', function(cb) {

    return gulp.src([drupalSrcFolder+'/**/*', drupalSrcFolder+'/**/.*'])

        .pipe(gulp.dest(drupalDestFolder));

});

gulp.task('copy-build', function(cb) {

    seq('clean', 'copy-module', 'do-copy-build', function (err) {

      //if any error happened in the previous tasks, exit with a code > 0

      if (err) {

        var exitCode = 2;

        console.log('[ERROR] gulp build task failed', err);

        console.log('[FAIL] gulp build task failed - exiting with code ' + exitCode);

        return process.exit(exitCode);

      }

      else {

        return cb();

      }

    });

});