import path from 'path';
import { log } from '../utils/Function';

/**
 * @description Checks the value of an environment field and logs the result.
 *
 * @param {string} envField - The name of the environment field to check.
 * @param {string} replacedBy - The value to replace if the environment field is undefined.
 * @returns {string} The value of the environment field or the replacement value if undefined.
 */
function CheckEnv(envField: string, replacedBy: string): string {
  const value = process.env[envField];

  if (value) {
    log(`🟢 Checking env field => '${envField}' : ${process.env[envField]}`);
    return value;
  }
  log(
    `🟡 Checking env field => '${envField}' : 'undefined' Replaced by => ${replacedBy}`
  );
  return replacedBy;
}

log(
  '---------------------------- Replaceable ENV ----------------------------'
);

/**
 * @description The current working directory of the project.
 */
export const CWD = process.cwd();
log(`🔵 The project started from ${CWD}`);

/**
 * @description The environment in which the application is running.
 * @default "development"
 */
export const NODE_ENV = CheckEnv('NODE_ENV', 'development');

/**
 * @description Flag indicating if the application is in development mode.
 * @default true
 */
export const InDev = NODE_ENV === 'development';

/**
 * @description The default port number if the 'BACK_PORT' environment variable is not set.
 * @default "8080"
 */
export const PORT = CheckEnv('BACK_PORT', '8080');

/**
 * @description The domain name of the main website. If 'DOMAIN' is not set, it defaults to 'snai3i.com'
 * @default "snai3i.com"
 *
 */
export const MAINDOMAIN = CheckEnv('MAINDOMAIN', 'snai3i.com');

/**
 * @description The domain name of the platform. If 'DOMAIN' is not set, it defaults to 'marketplace.snai3i.com'
 * @default "marketplace.snai3i.com"
 *
 */
export const DOMAIN = CheckEnv('DOMAIN', 'marketplace.snai3i.com');

/**
 * @description The URL of the backend. If 'BACK_URL' is not set, it defaults to 'http://localhost:PORT' in development mode and 'https://mpapi.snai3i.com' in production mode.
 * @default value (InDev ? "http://localhost:" + PORT : "https://mpapi.{MAINDOMAIN}")
 */
export const BACK_URL = CheckEnv(
  'BACK_URL',
  InDev ? 'http://localhost:' + PORT : `https://mpapi.${MAINDOMAIN}`
);

/**
 * @description The URL of the frontend app. If 'FRONT_URL' is not set, it defaults to 'http://localhost:PORT' in development mode and 'https://${DOMAIN}' in production mode.
 * @default value (InDev ? "http://localhost:" + PORT : "https://{DOMAIN}")
 */
export const FRONT_URL = CheckEnv(
  'FRONT_URL',
  InDev ? 'http://localhost:' + PORT : `https://${DOMAIN}`
);

/**
 * @description The route used for serving media files.
 * @default "/files"
 */
export const MediaRoute = '/media';

/**
 * @description The URL for serving media files.
 * @default `${BACK_URL}${MediaRoute}`
 */
export const MediaURL = `${BACK_URL}${MediaRoute}`;

/**
 * @description The URL of the main page of the platform.
 * @default "FRONT_URL"
 */
export const MAIN_URL = CheckEnv('MAIN_URL', 'FRONT_URL');

/**
 * @description The port used for email communication.
 * @default "465"
 */
export const EmailPort = CheckEnv("SMTP_PORT", "465");

/**
 * @description The host used for email communication.
 * @default "smtp.gmail.com"
 */
export const EmailHost = CheckEnv("SMTP_HOST", "smtp.gmail.com");

/**
 * @description The developer email address.
 * @default "sofianekdm003@gmail.com"
 */
export const DEV_Email = CheckEnv('DEV_Email', 'sofianekdm003@gmail.com');

/**
 * @description The name of the project.
 * @default "Snai3i Marketplace Rest API"
 */
export const PROJECT_Name = CheckEnv(
  'PROJECT_Name',
  'Snai3i Marketplace Rest API'
);

/**
 * @description The root directory where log files are stored.
 * @default value path.join(CWD, "logs")
 */
export const LogsRoot = CheckEnv('LOGS_ROOT', path.join(CWD, 'logs'));

/**
 * @description The root directory where static files are stored.
 * @default value path.join(CWD, "tmp")
 */
export const StaticRoot = CheckEnv('STATIC', path.join(CWD, 'uploads'));

/**
 * @description The cache age of static files
 * @default 2592000
 */
export const Static_Cache_Age = Number(CheckEnv('Static_Cache_Age', '2592000'));

/**
 * @description Check if the application is in test mode.
 * @default false
 */
export const InTest = NODE_ENV === 'test';

/**
 * @description The maximum file size (in bytes) that can be uploaded.
 * @default 5242880
 * aka 5MB
 */
export const sizeLimit = Number(CheckEnv("BACK_SIZE_LIMIT", "5242880"));

log('--------------------------------------------------------\n');