import { Config } from "../models/Config";
import { EnvBuilder } from "./EnvBuilder";

export class ConfigBuilder {
  /**
   * Builds a full XML config file with all environments and template.
   */
  public static buildFullXml(config: Config): string {
    const lines: string[] = [];
    lines.push("<engine>");

    // Add all environments
    for (const env of config.envs) {
      const envXml = new EnvBuilder().buildEnv(env);
      lines.push(envXml);
    }

    // Add template
    lines.push("    <template>");
    lines.push(config.template.content);
    lines.push("    </template>");

    lines.push("</engine>");
    return lines.join("\r\n");
  }

  /**
   * Generates filename with timestamp: config_yy-dd-MM-HHmm.json.xml
   */
  public static generateFilename(): string {
    const now = new Date();
    const yy = now.getFullYear().toString().slice(-2);
    const dd = String(now.getDate()).padStart(2, '0');
    const MM = String(now.getMonth() + 1).padStart(2, '0');
    const HH = String(now.getHours()).padStart(2, '0');
    const mm = String(now.getMinutes()).padStart(2, '0');
    return `config_${yy}-${dd}-${MM}-${HH}${mm}.json.xml`;
  }
}