const {exec} = require("child_process");

// DEVICE_REGEX = "(^[a-z0-9A-Z]*) .* model:([a-z0-9A-Z_]+)"
DEVICE_REGEX = "(^[a-z0-9A-Z-.:]*) .* model:([a-z0-9A-Z_]+)"

// DEVICE_REGEX = "(^[a-z0-9A-Z-]*) .* model:([a-z0-9A-Z_]+)"


async function devices() {
    return new Promise((resolve, reject) => {
        exec("adb devices -l", (error, stdout, stderr) => {
                if (error) {
                    console.log(`error: ${error.message}`);
                    return;
                }
                if (stderr) {
                    console.log(`stderr: ${stderr}`);
                    return;
                }
                console.log(`stdout: ${stdout}`);
                let lines = stdout.split("\n");
                let result = [];
                for (let i = 1; i < lines.length; i++) {
                    currentLine = lines[i]
                    console.log("currentLine is " + currentLine)
                    if (currentLine.length > 0) {
                        const o = currentLine.split('\t')
                        findResult = currentLine.match(DEVICE_REGEX)
                        console.log(findResult)
                        try {
                            result.push(new AndroidDevice(findResult[1], findResult[2]));
                        } catch (e) {
                            console.log(e)
                        }
                        console.log(result[i])
                    }
                }
                resolve(result);
            }
        );
    })
}

class AndroidDevice {
    constructor(serial, model) {
        this.serial = serial
        this.model = model
    }

    async swipeForDevice(x0, y0, x1, y1) {
        let cmd = `input swipe ${x0} ${y0} ${x1} ${y1}`
        await this.shell(cmd);
    }

    async tapForDevice(x, y) {
        let cmd = `input tap ${x} ${y}`
        console.log("cmd is " + cmd)
        try {
            await this.shell(cmd);
        } catch (e) {
            console.log(e)
        }
    }

    async clearApp(packageName) {
        let cmd = `adb -s ${this.serial} shell pm clear ${packageName}`
        console.log("cmd is " + cmd)
        await exec(cmd);
    }


    shell(cmd) {
        return new Promise((resolve, reject) => {
            exec("adb -s " + this.serial + " shell " + cmd, (error, stdout, stderr) => {
                    if (error) {
                        console.log(`error: ${error.message}`);
                        reject(error);
                        return;
                    }
                    if (stderr) {
                        console.log(`stderr: ${stderr}`);
                        reject(stderr);
                        return;
                    }
                    console.log(`stdout: ${stdout}`);
                    resolve(stdout);
                }
            );
        })
    }
}

module.exports = {AndroidDevice, devices}