// Reference: https://github.com/watson/ci-info/blob/v3.2.0/vendors.json

import { env, process } from "./env.ts";

/**
 * Represents the name of a CI/CD or Deployment provider.
 */
export type ProviderName =
  | (string & {})
  | "appveyor"
  | "aws_amplify"
  | "azure_pipelines"
  | "azure_static"
  | "appcircle"
  | "bamboo"
  | "bitbucket"
  | "bitrise"
  | "buddy"
  | "buildkite"
  | "circle"
  | "cirrus"
  | "cloudflare_pages"
  | "cloudflare_workers"
  | "google_cloudrun"
  | "google_cloudrun_job"
  | "codebuild"
  | "codefresh"
  | "drone"
  | "drone"
  | "dsari"
  | "github_actions"
  | "gitlab"
  | "gocd"
  | "layerci"
  | "hudson"
  | "jenkins"
  | "magnum"
  | "netlify"
  | "nevercode"
  | "render"
  | "sail"
  | "semaphore"
  | "screwdriver"
  | "shippable"
  | "solano"
  | "strider"
  | "teamcity"
  | "travis"
  | "vercel"
  | "appcenter"
  | "codesandbox"
  | "stackblitz"
  | "stormkit"
  | "cleavr"
  | "zeabur"
  | "codesphere"
  | "railway"
  | "deno-deploy"
  | "firebase_app_hosting";

type InternalProvider = [
  providerName: Uppercase<ProviderName>,
  envName?: string,
  meta?: Record<string, any>,
];

const providers: InternalProvider[] = [
  ["APPVEYOR"],
  ["AWS_AMPLIFY", "AWS_APP_ID", { ci: true }],
  ["AZURE_PIPELINES", "SYSTEM_TEAMFOUNDATIONCOLLECTIONURI"],
  ["AZURE_STATIC", "INPUT_AZURE_STATIC_WEB_APPS_API_TOKEN"],
  ["APPCIRCLE", "AC_APPCIRCLE"],
  ["BAMBOO", "bamboo_planKey"],
  ["BITBUCKET", "BITBUCKET_COMMIT"],
  ["BITRISE", "BITRISE_IO"],
  ["BUDDY", "BUDDY_WORKSPACE_ID"],
  ["BUILDKITE"],
  ["CIRCLE", "CIRCLECI"],
  ["CIRRUS", "CIRRUS_CI"],
  ["CLOUDFLARE_PAGES", "CF_PAGES", { ci: true }],
  ["CLOUDFLARE_WORKERS", "WORKERS_CI", { ci: true }],
  ["GOOGLE_CLOUDRUN", "K_SERVICE"],
  ["GOOGLE_CLOUDRUN_JOB", "CLOUD_RUN_JOB"],
  ["CODEBUILD", "CODEBUILD_BUILD_ARN"],
  ["CODEFRESH", "CF_BUILD_ID"],
  ["DRONE"],
  ["DRONE", "DRONE_BUILD_EVENT"],
  ["DSARI"],
  ["GITHUB_ACTIONS"],
  ["GITLAB", "GITLAB_CI"],
  ["GITLAB", "CI_MERGE_REQUEST_ID"],
  ["GOCD", "GO_PIPELINE_LABEL"],
  ["LAYERCI"],
  // Jenkins must be validated before Hudson
  ["JENKINS", "JENKINS_URL"],
  ["HUDSON", "HUDSON_URL"],
  ["MAGNUM"],
  ["NETLIFY"],
  ["NETLIFY", "NETLIFY_LOCAL", { ci: false }],
  ["NEVERCODE"],
  ["RENDER"],
  ["SAIL", "SAILCI"],
  ["SEMAPHORE"],
  ["SCREWDRIVER"],
  ["SHIPPABLE"],
  ["SOLANO", "TDDIUM"],
  ["STRIDER"],
  ["TEAMCITY", "TEAMCITY_VERSION"],
  ["TRAVIS"],
  ["VERCEL", "NOW_BUILDER"],
  ["VERCEL", "VERCEL", { ci: false }],
  ["VERCEL", "VERCEL_ENV", { ci: false }],
  ["APPCENTER", "APPCENTER_BUILD_ID"],
  ["CODESANDBOX", "CODESANDBOX_SSE", { ci: false }],
  ["CODESANDBOX", "CODESANDBOX_HOST", { ci: false }],
  ["STACKBLITZ"],
  ["STORMKIT"],
  ["CLEAVR"],
  ["ZEABUR"],
  ["CODESPHERE", "CODESPHERE_APP_ID", { ci: true }],
  ["RAILWAY", "RAILWAY_PROJECT_ID"],
  ["RAILWAY", "RAILWAY_SERVICE_ID"],
  ["DENO-DEPLOY", "DENO_DEPLOY"],
  ["DENO-DEPLOY", "DENO_DEPLOYMENT_ID"],
  ["FIREBASE_APP_HOSTING", "FIREBASE_APP_HOSTING", { ci: true }],
];

/**
 * Provides information about a CI/CD or Deployment provider, including its name and possibly other metadata.
 */
export type ProviderInfo = {
  /**
   * The name of the CI/CD or Deployment provider. See {@link ProviderName} for possible values.
   */
  name: ProviderName;

  /**
   * If is set to `true`, the environment is recognised as a CI/CD provider.
   */
  ci?: boolean;

  /**
   * Arbitrary metadata associated with the provider.
   */
  [meta: string]: any;
};

/**
 * Detects the current CI/CD or Deployment provider from environment variables.
 */
export function detectProvider(): ProviderInfo {
  // Based on env
  for (const provider of providers) {
    const envName = provider[1] || provider[0];
    if (env[envName]) {
      return {
        name: provider[0].toLowerCase(),
        ...(provider[2] as any),
      };
    }
  }

  // Stackblitz / Webcontainer
  if (env.SHELL === "/bin/jsh" && process.versions?.webcontainer) {
    return {
      name: "stackblitz",
      ci: false,
    };
  }

  return {
    name: "",
    ci: false,
  };
}

/**
 * The detected provider information for the current execution context.
 * This value is evaluated once at module initialisation.
 */
export const providerInfo: ProviderInfo = /* #__PURE__ */ detectProvider();

/**
 * Name of the detected provider, defaults to an empty string if no provider is detected.
 */
export const provider: ProviderName = providerInfo.name;