import { APK_TABS } from './constants';

export type ApkEnvironment = 'product' | 'dev' | 'sandbox' | 'other';

export interface ParsedApkMetadata {
  environment: ApkEnvironment;
  rawEnvironment: string;
  commit: string | null;
  isValid: boolean;
}

export function getApkTabs(): string[] {
  return APK_TABS;
}

export function detectEnvironment(prefix: string, configuredTabs: string[]): { environment: ApkEnvironment; rawEnvironment: string } {
  // Empty prefix → other
  if (!prefix) {
    return { environment: 'other', rawEnvironment: 'other' };
  }

  // No underscore means product (e.g., "ft")
  if (!prefix.includes('_')) {
    return { environment: 'product', rawEnvironment: 'product' };
  }

  // Extract environment from last segment after underscore
  const lastUnderscoreIndex = prefix.lastIndexOf('_');
  const rawEnv = prefix.substring(lastUnderscoreIndex + 1);

  // Check if environment is configured
  if (configuredTabs.includes(rawEnv)) {
    return { environment: rawEnv as ApkEnvironment, rawEnvironment: rawEnv };
  }

  return { environment: 'other', rawEnvironment: rawEnv };
}

export function parseApkFilename(filename: string, version: string): ParsedApkMetadata {
  // Use version as delimiter (with leading underscore)
  const delimiter = `_${version}_`;
  const filenameWithoutExt = filename.replace(/\.apk$/, '');
  const parts = filenameWithoutExt.split(delimiter);
  const { environment, rawEnvironment } = detectEnvironment(parts[0], APK_TABS);
  const commit = parts[1].substring(0, 9);

  return {
    environment,
    rawEnvironment,
    commit,
    isValid: commit !== null,
  };
}