const { spawn } = require("child_process");
const readline = require("readline");

class DevelopClientScript {
    constructor() {
        if (DevelopClientScript.instance) {
            return DevelopClientScript.instance;
        }
        DevelopClientScript.instance = this;
    }

    promptUser(question) {
        return new Promise((resolve) => {
            const rl = readline.createInterface({
                input: process.stdin,
                output: process.stdout,
            });
            rl.question(question, (res) => {
                resolve(res);
                rl.close();
            });
        });
    }

    async runClient() {
        console.error("请选择你需要运行的客户端（回复数字后回车）");
        console.error("0.取消");
        console.error("1.微信小程序");
        console.error("2.公众号或者H5");
        const runClientRes = await this.promptUser("请输入运行的客户端：");
        switch (runClientRes) {
            case "0":
                break;
            case "1":
                await this.runNpmScript("dev:mp-weixin");
                break;
            case "2":
                await this.runNpmScript("dev:h5");
                break;
            default:
                await this.runClient();
                break;
        }
    }

    runNpmScript(scriptName) {
        return new Promise((resolve, reject) => {
            const isWindows = process.platform === "win32";
            const command = isWindows ? "cmd.exe" : "npm";
            const args = isWindows ? ["/c", "npm", "run", scriptName] : ["run", scriptName];

            const runProcess = spawn(command, args);

            runProcess.stdout.on("data", (data) => {
                console.log(data.toString());
            });

            runProcess.stderr.on("data", (data) => {
                console.error(data.toString());
            });

            runProcess.on("close", (code) => {
                if (code !== 0) {
                    reject(new Error(`运行错误，请查看以下报错信息寻找解决方法: ${error.message}`));
                } else {
                    resolve();
                }
            });
        });
    }

    async run(targetVersion) {
        const currentVersion = process.versions.node;
        if (currentVersion < targetVersion) {
            throw new Error(`你的当前node版本为(${currentVersion})，需要安装目标版本为 ${targetVersion} 以上！！`);
        }

        await this.runClient();
    }

    static getInstance() {
        if (!DevelopClientScript.instance) {
            DevelopClientScript.instance = new DevelopClientScript();
        }
        return DevelopClientScript.instance;
    }
}

(async () => {
    const develop = DevelopClientScript.getInstance();
    try {
        await develop.run("16.16.0");
    } catch (error) {
        console.error(error.message);
    }
})();