import { writeFileSyncIfChanged } from "@hexclave/shared/dist/utils/fs";
import { deindent } from "@hexclave/shared/dist/utils/strings";

const envVarsConfig: Record<string, { allowPublic?: boolean, deprecatedLegacyNames?: string[] }> = {
  HEXCLAVE_PORT_PREFIX: {
    allowPublic: true,
  },
  HEXCLAVE_PROJECT_ID: {
    allowPublic: true,
  },
  HEXCLAVE_PUBLISHABLE_CLIENT_KEY: {
    allowPublic: true,
  },
  HEXCLAVE_SECRET_SERVER_KEY: {},
  HEXCLAVE_SUPER_SECRET_ADMIN_KEY: {},
  HEXCLAVE_EXTRA_REQUEST_HEADERS: {
    allowPublic: true,
  },
  HEXCLAVE_API_URL_BROWSER: {
    allowPublic: true,
    deprecatedLegacyNames: ["BROWSER_STACK_API_URL", "BROWSER_HEXCLAVE_API_URL"],
  },
  HEXCLAVE_API_URL_SERVER: {
    allowPublic: true,
    deprecatedLegacyNames: ["SERVER_STACK_API_URL", "SERVER_HEXCLAVE_API_URL"],
  },
  HEXCLAVE_API_URL: {
    allowPublic: true,
    deprecatedLegacyNames: ["HEXCLAVE_URL", "STACK_URL"],
  },
  HEXCLAVE_HOSTED_HANDLER_DOMAIN_SUFFIX: {
    allowPublic: true,
  },
  HEXCLAVE_HOSTED_HANDLER_URL_TEMPLATE: {
    allowPublic: true,
  },
  HEXCLAVE_STRIPE_PUBLISHABLE_KEY: {
    allowPublic: true,
  },
  HEXCLAVE_BOT_CHALLENGE_SITE_KEY: {
    allowPublic: true,
  },
  HEXCLAVE_BOT_CHALLENGE_INVISIBLE_SITE_KEY: {
    allowPublic: true,
  },
  HEXCLAVE_IS_LOCAL_EMULATOR: {
    allowPublic: true,
  },
  HEXCLAVE_POSTHOG_KEY: {
    allowPublic: true,
  },
  HEXCLAVE_SVIX_SERVER_URL: {
    allowPublic: true,
  },
  HEXCLAVE_SENTRY_DSN: {
    allowPublic: true,
  },
  HEXCLAVE_VERSION_ALERTER_SEVERE_ONLY: {
    allowPublic: true,
  },
  NODE_ENV: {
    allowPublic: false,
  },
};

function generateEnvVarsConstSnippet() {
  const getters: string[] = [];
  for (const [key, config] of Object.entries(envVarsConfig)) {
    const allVariables = [key, ...(config.deprecatedLegacyNames ?? [])]
      .flatMap(k => k.startsWith("HEXCLAVE_") ? [k, k.replace("HEXCLAVE_", "STACK_")] : [k])
      .flatMap(k => config.allowPublic ? [k, `NEXT_PUBLIC_${k}`, `VITE_${k}`] : [k]);
    getters.push(deindent`
      get ${key}() {
        return ${allVariables.map(variableName => deindent`
          ((typeof process !== "undefined" ? process.env.${variableName} : undefined) ?? import.meta.env?.${variableName})
        `).join("\n  ?? ")} ?? undefined;
      },
    `);
  }
  return deindent`
    // THIS FILE IS AUTO-GENERATED BY THE \`generate-env.ts\` SCRIPT.
    // DO NOT EDIT IT BY HAND.
    /* eslint-disable no-restricted-properties */

    export const envVars = {
      ${getters.join("\n")}
    };
  ` + "\n";
}

writeFileSyncIfChanged("src/generated/env.ts", generateEnvVarsConstSnippet());