'use strict';
const fs = require('fs');
const {join} = require('path');
const FileUtil = require('./js/FileUtils');
const FileUpload = require('./js/FileUploader');
const logger = require('./js/logger');

// 生成更新文件.
const doMakeUpdatePackage = function (opt, cb) {
    if (opt.platform == 'android' || opt.platform == 'ios') {
        try {
            const configStr = fs.readFileSync(
                Editor.url('packages://update-manager/.settings.conf'), 'utf-8');
            const configJson = JSON.parse(configStr || "{}");
            if (typeof configJson.versionCfg.versionCode === 'undefined') {
                logger.warn("未配置更新版本,不生成热更Patch");
                cb && cb();
                return;
            }
            if (!configJson.versionCfg.versionType || configJson.versionCfg.versionType.length <= 0) {
                configJson.versionCfg.versionType = 'dev';
            }

            const bundleVers = {};
            for (let b of opt.bundles) {
                bundleVers[b.name] = b.version;
            }
            saveNewVersionInfo(opt, bundleVers, configJson);

            const remoteDir = join(opt.dest, 'remote');
            const assetDir = join(opt.dest, 'assets');
            FileUtil.copy(assetDir, remoteDir);

            cb && cb();
        } catch (e) {
            logger.log("未生成更新包", e);
            cb && cb();
        }
    } else {
        cb && cb();
    }
};

const saveNewVersionInfo = function (opt, bundleVers, configJson) {
    const data = {
        versionCode: configJson.versionCfg.versionCode,
        versionName: configJson.versionCfg.versionName,
        versionType: configJson.versionCfg.versionType,
        versionLog: configJson.versionCfg.versionLog,
        forceUpdate: configJson.versionCfg.forceUpdate,
        server: `${configJson.versionCfg.baseUrl}${configJson.ftpCfg.rootPath}${configJson.versionCfg.versionType}/${configJson.versionCfg.versionCode}`
    };
    const updateInfo = Object.assign(data, {bundles: bundleVers});
    // 将版本更新信息写入文件
    let targetUpdatePath = join(opt.dest, `remote/update-${configJson.versionCfg.versionType}.json`)
    FileUtil.write(targetUpdatePath, JSON.stringify(updateInfo, null, 2));
    logger.log("更新信息存储位置:", targetUpdatePath);
};

module.exports = {
    load() {
        Editor.Builder.on('build-finished', doMakeUpdatePackage);
        try {
            fs.readFileSync(
                Editor.url('packages://update-manager/.settings.conf'), 'utf-8');
        } catch (e) {
            fs.writeFileSync(
                Editor.url('packages://update-manager/.settings.conf'), JSON.stringify({}, null, 2), 'utf-8');
        }
        if (!this.ftp) {
            this.ftp = FileUpload();
        }
        this.ftp.setStateListener(this.onUploadStateChange.bind(this));
    },

    onUploadStateChange(state) {
        logger.log('当前任务执行器状态:', state);
        if (!state) {
            this.startUploadTime = new Date().getTime();
            logger.info('开始上传更新包', this.startUploadTime);
        } else {
            logger.success(`所有文件上传完成,耗时:${Math.floor((new Date().getTime() - this.startUploadTime) / 1000)}秒`);
        }
    },

    unload() {
        Editor.Builder.removeListener('build-finished', doMakeUpdatePackage);
        if (this.ftp) {
            this.ftp.destroy();
            this.ftp = null;
        }
    },
    messages: {
        'open'() {
            Editor.Panel.open('update-manager');
        },
        'upload'(event, dir, dst, options) {
            logger.info('upload....');
            this.ftp.setOption(options, options.maxThread);
            this.ftp.upload(dir, dst);
        },
        'getProjectPath'(event) {
            event.reply(Editor.Project.path);
        },
        "checkThreads"(event) {
            event.reply(this.ftp.checkThreads());
        },
        'queryThreadStates'(event) {
            event.reply(this.ftp.checkState());
        },
        'restartThread'(event, name) {
            this.ftp.restart(name);
        },
        'uploadStop'() {
            if (this.ftp) {
                this.ftp.destroy();
            }
        }
    },
};