var gulp         = require('gulp');
var concat       = require('gulp-concat');
var sort         = require('gulp-sort');
var minify       = require('gulp-minify');
var replace      = require('gulp-string-replace');

gulp.task('build', build);
gulp.task('monitor', monitor);

var code = 'if (R3.Utils.UndefinedOrNull(apiComponent)) {\n';
code 	+= '\t\tapiComponent = {};\n';
code	+= '\t}\n';
code	+= '\tthis.apiComponent = apiComponent;\n';
code	+= '\n';
code	+= '\tR3.API.Component.call(\n';
code	+= '\t\tthis,\n';
code	+= '\t\tthis.apiComponent.parent,\n';
code	+= '\t\tthis.apiComponent.id,\n';
code	+= '\t\tthis.apiComponent.name,\n';
code	+= '\t\tthis.apiComponent.register,\n';
code	+= '\t\tthis.apiComponent.selected\n';
code	+= '\t)';

var code2 = 'R3.D3.API.Geometry.Buffer.call(\n';
code2	+= '\t\tthis,\n';
code2	+= '\t\tapiComponent\n';
code2	+= '\t)';

var code3 = 'R3.D3.API.Geometry.Normal.call(\n';
code3	+= '\t\tthis,\n';
code3	+= '\t\tapiComponent\n';
code3	+= '\t)';

var code4 = 'R3.D3.API.Material.call(\n';
code4	+= '\t\tthis,\n';
code4	+= '\t\tapiComponent\n';
code4	+= '\t)';

var code5 = 'if (R3.Utils.UndefinedOrNull(apiTexture)) {\n';
code5	+= '\t\tapiTexture = {};\n';
code5	+= '\t}\n';
code5	+= '\tthis.apiTexture = apiTexture;\n';
code5	+= '\n';
code5	+= '\tR3.D3.API.Texture.call(\n';
code5	+= '\t\tthis,\n';
code5	+= '\t\tthis.apiTexture,\n';
code5	+= '\t\tthis.apiTexture.parentMaterials,\n';
code5	+= '\t\tthis.apiTexture.mipmaps,\n';
code5	+= '\t\tthis.apiTexture.mapping,\n';
code5	+= '\t\tthis.apiTexture.wrapS,\n';
code5	+= '\t\tthis.apiTexture.wrapT,\n';
code5	+= '\t\tthis.apiTexture.magFilter,\n';
code5	+= '\t\tthis.apiTexture.minFilter,\n';
code5	+= '\t\tthis.apiTexture.anisotropy,\n';
code5	+= '\t\tthis.apiTexture.format,\n';
code5	+= '\t\tthis.apiTexture.storageType,\n';
code5	+= '\t\tthis.apiTexture.offset,\n';
code5	+= '\t\tthis.apiTexture.repeat,\n';
code5	+= '\t\tthis.apiTexture.rotation,\n';
code5	+= '\t\tthis.apiTexture.center,\n';
code5	+= '\t\tthis.apiTexture.matrixAutoUpdate,\n';
code5	+= '\t\tthis.apiTexture.generateMipMaps,\n';
code5	+= '\t\tthis.apiTexture.premultiplyAlpha,\n';
code5	+= '\t\tthis.apiTexture.flipY,\n';
code5	+= '\t\tthis.apiTexture.unpackAlignment,\n';
code5	+= '\t\tthis.apiTexture.encoding,\n';
code5	+= '\t\tthis.apiTexture.version,\n';
code5	+= '\t\tthis.apiTexture.animated,\n';
code5	+= '\t\tthis.apiTexture.reverseAnimation,\n';
code5	+= '\t\tthis.apiTexture.forward\n';
code5	+= '\t)';

var code6 = 'if (R3.Utils.UndefinedOrNull(apiComponent)) {\n';
code6	+= '\t\tapiComponent = {};\n';
code6	+= '\t}\n';
code6	+= '\tthis.apiComponent = apiComponent;\n';
code6	+= '\n';
code6	+= '\tthis.graphics\t= null;\n';
code6	+= '\tthis.physics\t= null;\n';
code6	+= '\tthis.coder\t\t= null;\n';
code6	+= '\tthis.gui\t\t= null;\n';
code6	+= '\tthis.stats\t\t= null;\n';
code6	+= '\n';
code6	+= '\tR3.Event.Emit(\n';
code6	+= '\t\tR3.Event.GET_RUNTIME,\n';
code6	+= '\t\tfunction(runtime) {\n';
code6	+= '\t\t\tthis.graphics\t= runtime.graphics;\n';
code6	+= '\t\t\tthis.physics\t= runtime.physics;\n';
code6	+= '\t\t\tthis.coder\t\t= runtime.coder;\n';
code6	+= '\t\t\tthis.gui\t\t= runtime.gui;\n';
code6	+= '\t\t\tthis.stats\t\t= runtime.stats;\n';
code6	+= '\t\t}.bind(this)\n';
code6	+= '\t);\n';
code6	+= '\n';
code6	+= '\tthis.initialize(apiComponent)';

var code7 = 'if (R3.Utils.UndefinedOrNull(apiComponent)) {\n';
code7	+= '\t\tapiComponent = {};\n';
code7	+= '\t}\n';
code7	+= '\n';
code7	+= '\tif (R3.Utils.UndefinedOrNull(apiComponent.register)) {\n';
code7	+= '\t\tapiComponent.register = false;\n';
code7	+= '\t}\n';
code7	+= '\n';
code7	+= '\tR3.Event.Emit(\n';
code7	+= '\t\tR3.Event.GET_REGISTER_FACES,\n';
code7	+= '\t\tnull,\n';
code7	+= '\t\tfunction(register) {\n';
code7	+= '\t\t\tif (register) {\n';
code7	+= '\t\t\t\tapiComponent.register = true;\n';
code7	+= '\t\t\t}\n';
code7	+= '\t\t}\n';
code7	+= '\t)';

var code8 = 'R3.Component.call(this)';

var code9 = 'R3.Component.prototype.createInstance.call(this)';

var code10 = 'R3.Component.prototype.updateInstance.call(this, property)';

var code11 = 'R3.D3.Geometry.Buffer.call(\n';
code11	+= '\t\tthis,\n';
code11	+= '\t\ttrue\n';
code11	+= '\t);';

function build() {
    return gulp.src('./src/r3-*.js')
        .pipe(sort())
        .pipe(concat('r3.js'))
        .pipe(replace('__DATE__', new Date().toString()))
        .pipe(replace('__API_COMPONENT__', code))
        .pipe(replace('__API_GEOMETRY_BUFFER__', code2))
        .pipe(replace('__API_GEOMETRY_NORMAL__', code3))
        .pipe(replace('__API_MATERIAL__', code4))
        .pipe(replace('__API_TEXTURE__', code5))
        .pipe(replace('__RUNTIME_COMPONENT__', code6))
        .pipe(replace('__DEREGISTER_COMPONENT__', code7))
        .pipe(replace('__UPGRADE_TO_RUNTIME__', code8))
        .pipe(replace('__CREATE_INSTANCE__', code9))
        .pipe(replace('__UPDATE_INSTANCE__', code10))
        .pipe(replace('__RUNTIME_BUFFER_COMPONENT__', code11))
        .pipe(minify({
            ext:{
                src:'.js',
                min:'-min.js'
            }
        }))
        .pipe(gulp.dest('./build/'));
}


function monitor() {
    gulp.watch('src/*.js', build);
}

gulp.task(
    'default',
    gulp.series(
        build,
        monitor
    )
);