require("dotenv").config({quiet: true});
const exec = require("child_process").exec;

const main = async () => {
    const runAsterisk = (command) =>
        new Promise((resolve) =>
            exec(command, (error, stdout, stderr) => resolve({ error, stdout, stderr }))
        );

    try {
        var forwards = {};
        const commands = [
            'asterisk -x "database show CF"',
            'asterisk -x "database show CFB"',
            'asterisk -x "database show CFU"',
        ];
        for (const command of commands) {
            const { error, stdout, stderr } = await runAsterisk(command);
            if (error) {
                console.error(`Error executing command "${command}": ${error}`);
                continue;
            }

            const lines = stdout.split('\n');
            for (const line of lines) {
                const match = line.match(/^\/(CF|CFB|CFU)\/(\d+)\s+:\s+(.+)$/);
                if (match) {
                    const type = match[1];
                    const extension = match[2];
                    const target = match[3];

                    forwards[`${type}/${extension}`] = target.replace(/\s+$/, '');
                }
            }
        }
        console.log("Call forwards:", forwards);
    } catch (err) {
        console.error(`Unexpected error: ${err}`);
    }
};

const startup = async () => {
    // Run `asterisk -x "core show version"` to get the Asterisk version. If it fails, wait 10 seconds before running main again
    exec('asterisk -x "core show version"', (error, stdout, stderr) => {
        if (error) {
            console.error(`Error executing command: ${error}`);
            console.log("Asterisk is not running. Retrying in 10 seconds...");
            setTimeout(startup, 10000);
            return;
        }
        const version = stdout.trim();
        console.log(`Asterisk version: ${version}`);
        main();
    });
}

startup();