"use strict";
const exec = require('./exec');
const fs = require('fs');
const through = require('through2');


const Android = {
    adb: (args) => {
        const adbBin = `${process.env.ANDROID_HOME}/platform-tools/adb.exe`;
        return exec('.', [adbBin].concat(args).join(' ')).then((data) => {
            for (let line of data.stderr.split('\n')) {
                if (line.indexOf('Error') > -1) {
                    throw line;
                }
            }
        });
    },

    aapt: (args) => {
        let buildToolsVersion = null;
        fs.readdirSync(`${process.env.ANDROID_HOME}/build-tools`).forEach(file => {
            buildToolsVersion = file;
        });
        const aaptBin = `${process.env.ANDROID_HOME}/build-tools/${buildToolsVersion}/aapt.exe`;
        return exec('.', [aaptBin].concat(args).join(' '));
    },

    apk: () => {
        return through.obj(function(file, enc, callback) {
            Android.aapt(['l', '-a', file.path]).then((data) => {
                let activity = false;
                for (let line of data.stdout.split('\n')) {
                    if (line.indexOf('package') > -1) {
                        const value = /"(.*?)"/.exec(line);
                        if (value) file.package = value[1]
                    }
                    if (line.indexOf('activity') > -1) {
                        activity = true;
                    }
                    if (activity && line.indexOf('name') > -1) {
                        const value = /"(.*?)"/.exec(line);
                        if (value) {
                            file.activity = value[1];
                            activity = false;
                        }
                    }
                }
                this.push(file);
                callback();
            });
        });
    },

    install: () => {
        return through.obj(function(file, enc, callback) {
            Android.adb(['install', '-r', file.path]).then(() => {
                this.push(file);
                callback();
            });
        });
    },

    start: () => {
        return through.obj((file, enc, callback) => {
            const name = `${file.package}/${file.activity}`;
            Android.adb(['shell', 'am', 'start', '-n', name]).then(() => callback());
        });
    }
};


module.exports = Android;