import yaml from 'js-yaml'
import fs from 'fs';
import dotenv from "dotenv"

dotenv.config()
if ( !process.env.TARGET_FILE
    || !process.env.TARGET_SERVICE
    || !process.env.TARGET_IMAGE ) {
    console.log("environment variables: TARGET_FILE, TARGET_SERVICE, TARGET_IMAGE are required")
    process.exit(1)
}
console.log("Working directory",process.cwd());
console.log("TARGET_FILE",process.env.TARGET_FILE);
console.log("TARGET_SERVICE",process.env.TARGET_SERVICE);
console.log("TARGET_IMAGE",process.env.TARGET_IMAGE);
try {
    console.log("updating service version");
    const composeFile: any = yaml.load(fs.readFileSync(process.env.TARGET_FILE as string, 'utf8'));
    console.log("updating image");
    composeFile.services[process.env.TARGET_SERVICE as string].image = process.env.TARGET_IMAGE;
    const result = yaml.dump(composeFile);
    fs.writeFileSync(process.env.TARGET_FILE as string, result)
    console.log("image updated",process.env.TARGET_FILE,process.env.TARGET_SERVICE,process.env.TARGET_IMAGE);
} catch (e) {
    console.log(e);
}