// @ts-check

import fs from "node:fs";
import path from "node:path";
import process from "node:process";
import { createRequire } from "node:module";
import { fileURLToPath } from "node:url";

/** @typedef {import('../types/runtime-config.js').RuntimeConfig} RuntimeConfig */

const require = createRequire(import.meta.url);
const CURRENT_DIR = path.dirname(fileURLToPath(import.meta.url));
export const PROJECT_ROOT = path.resolve(CURRENT_DIR, "../..");
const WORKSPACE_ROOT = path.resolve(PROJECT_ROOT, "../..");
const CONFIG_ROOT = path.join(PROJECT_ROOT, "config");

loadEnvFiles([
  path.join(WORKSPACE_ROOT, ".env"),
  path.join(PROJECT_ROOT, ".env"),
]);

const defaultConfig = /** @type {RuntimeConfig} */ (
  loadConfig(path.join(CONFIG_ROOT, "default.cjs"))
);

export const runtimeConfig = /** @type {RuntimeConfig} */ (
  applyEnvOverrides(defaultConfig)
);

function loadConfig(configPath) {
  if (!fs.existsSync(configPath)) {
    return {};
  }

  const loaded = require(configPath);
  return isPlainObject(loaded) ? loaded : {};
}

function loadEnvFiles(filePaths) {
  for (const filePath of filePaths) {
    loadEnvFile(filePath);
  }
}

function loadEnvFile(filePath) {
  if (!fs.existsSync(filePath)) {
    return;
  }

  const rawText = fs.readFileSync(filePath, "utf8");
  const lines = rawText.split(/\r?\n/);

  for (const rawLine of lines) {
    const line = rawLine.trim();

    if (!line || line.startsWith("#")) {
      continue;
    }

    const separatorIndex = line.indexOf("=");
    if (separatorIndex <= 0) {
      continue;
    }

    const key = line.slice(0, separatorIndex).trim();
    if (!key || key in process.env) {
      continue;
    }

    process.env[key] = parseEnvValue(line.slice(separatorIndex + 1));
  }
}

function parseEnvValue(rawValue) {
  const value = String(rawValue || "").trim();

  if (!value) {
    return "";
  }

  const quote = value[0];
  if ((quote === '"' || quote === "'") && value.endsWith(quote)) {
    return value.slice(1, -1);
  }

  return value;
}

function applyEnvOverrides(baseConfig) {
  const nextConfig = deepMerge(baseConfig, {});

  const port = parseInteger(process.env.PORT);
  if (port !== null) {
    nextConfig.server.port = port;
  }

  const chromePath = String(process.env.CHROME_PATH || "").trim();
  if (chromePath) {
    nextConfig.browser.chromePath = chromePath;
  }

  const browserHeadless = parseBoolean(process.env.TENCENT_BROWSER_HEADLESS);
  if (browserHeadless !== null) {
    nextConfig.browser.headless = browserHeadless;
  }

  const browserDevtools = parseBoolean(process.env.TENCENT_BROWSER_DEVTOOLS);
  if (browserDevtools !== null) {
    nextConfig.browser.devtools = browserDevtools;
  }

  const browserKeepAlive = parseBoolean(process.env.TENCENT_BROWSER_KEEP_ALIVE);
  if (browserKeepAlive !== null) {
    nextConfig.browser.keepAlive = browserKeepAlive;
  }

  const browserPrewarm = parseBoolean(process.env.TENCENT_BROWSER_PREWARM);
  if (browserPrewarm !== null) {
    nextConfig.browser.prewarm = browserPrewarm;
  }

  const browserSlowMoMs = parseInteger(process.env.TENCENT_BROWSER_SLOW_MO);
  if (browserSlowMoMs !== null) {
    nextConfig.browser.slowMoMs = browserSlowMoMs;
  }

  const sessionDebug = parseBoolean(process.env.TENCENT_SESSION_DEBUG);
  if (sessionDebug !== null) {
    nextConfig.session.debug = sessionDebug;
  }
  const ocrBaseUrl = String(process.env.OCR_BASE_URL || "").trim();
  if (ocrBaseUrl) {
    nextConfig.ocr.baseUrl = ocrBaseUrl;
  }

  const dataRoot = String(process.env.DATA_ROOT || "").trim();
  if (dataRoot) {
    nextConfig.data.root = path.resolve(dataRoot);
  }

  const logLevel = String(process.env.LOG_LEVEL || "").trim();
  if (logLevel) {
    nextConfig.logging.level = logLevel;
  }

  const databaseUrl = String(process.env.DATABASE_URL || "").trim();
  if (databaseUrl) {
    nextConfig.database.url = databaseUrl;
  }

  const databaseSsl = parseBoolean(process.env.DATABASE_SSL);
  if (databaseSsl !== null) {
    nextConfig.database.ssl = databaseSsl;
  }

  const databaseMaxConnections = parseInteger(
    process.env.DATABASE_MAX_CONNECTIONS
  );
  if (databaseMaxConnections !== null) {
    nextConfig.database.maxConnections = databaseMaxConnections;
  }

  const claimBaseUrl = String(process.env.CLAIM_BASE_URL || "").trim();
  if (claimBaseUrl) {
    nextConfig.orders.claimBaseUrl = claimBaseUrl;
  } else {
    const appBaseUrl = String(process.env.APP_BASE_URL || "").trim();
    if (appBaseUrl) {
      nextConfig.orders.claimBaseUrl = `${appBaseUrl.replace(
        /\/+$/,
        ""
      )}/#/claim`;
    }
  }

  const tokenTtlHours = parseInteger(process.env.CLAIM_TOKEN_TTL_HOURS);
  if (tokenTtlHours !== null) {
    nextConfig.orders.tokenTtlHours = tokenTtlHours;
  }

  const adminSessionSecret = String(
    process.env.ADMIN_SESSION_SECRET || ""
  ).trim();
  if (adminSessionSecret) {
    nextConfig.admin.sessionSecret = adminSessionSecret;
  }

  const adminSessionTtlHours = parseInteger(
    process.env.ADMIN_SESSION_TTL_HOURS
  );
  if (adminSessionTtlHours !== null) {
    nextConfig.admin.sessionTtlHours = adminSessionTtlHours;
  }

  const adminDefaultUsers = parseJsonArray(
    process.env.ADMIN_DEFAULT_USERS_JSON
  );
  if (adminDefaultUsers) {
    nextConfig.admin.defaultUsers = adminDefaultUsers;
  }

  const agisoAppSecret = String(process.env.AGISO_APP_SECRET || "").trim();
  if (agisoAppSecret) {
    nextConfig.platforms.agiso.appSecret = agisoAppSecret;
  }

  const agisoTradeDetailEndpoint = String(
    process.env.AGISO_TRADE_DETAIL_ENDPOINT || ""
  ).trim();
  if (agisoTradeDetailEndpoint) {
    nextConfig.platforms.agiso.tradeDetail.endpoint = agisoTradeDetailEndpoint;
  }

  const agisoTradeDetailApiVersion = String(
    process.env.AGISO_TRADE_DETAIL_API_VERSION || ""
  ).trim();
  if (agisoTradeDetailApiVersion) {
    nextConfig.platforms.agiso.tradeDetail.apiVersion =
      agisoTradeDetailApiVersion;
  }

  const agisoTradeDetailTimeoutMs = parseInteger(
    process.env.AGISO_TRADE_DETAIL_TIMEOUT_MS
  );
  if (agisoTradeDetailTimeoutMs !== null) {
    nextConfig.platforms.agiso.tradeDetail.timeoutMs =
      agisoTradeDetailTimeoutMs;
  }

  const agisoAutoDeliveryEnabled = parseBoolean(
    process.env.AGISO_AUTO_DELIVERY_ENABLED
  );
  if (agisoAutoDeliveryEnabled !== null) {
    nextConfig.platforms.agiso.autoDelivery.enabled = agisoAutoDeliveryEnabled;
  }

  const agisoAutoDeliveryEndpoint = String(
    process.env.AGISO_AUTO_DELIVERY_ENDPOINT || ""
  ).trim();
  if (agisoAutoDeliveryEndpoint) {
    nextConfig.platforms.agiso.autoDelivery.endpoint =
      agisoAutoDeliveryEndpoint;
  }

  const agisoAutoDeliveryApiVersion = String(
    process.env.AGISO_AUTO_DELIVERY_API_VERSION || ""
  ).trim();
  if (agisoAutoDeliveryApiVersion) {
    nextConfig.platforms.agiso.autoDelivery.apiVersion =
      agisoAutoDeliveryApiVersion;
  }

  const agisoMessageApiVersion = String(
    process.env.AGISO_MESSAGE_API_VERSION || ""
  ).trim();
  if (agisoMessageApiVersion) {
    nextConfig.platforms.agiso.messaging.apiVersion = agisoMessageApiVersion;
  }

  const agisoSendMessageEndpoint = String(
    process.env.AGISO_SEND_MESSAGE_ENDPOINT || ""
  ).trim();
  if (agisoSendMessageEndpoint) {
    nextConfig.platforms.agiso.messaging.sendMessageEndpoint =
      agisoSendMessageEndpoint;
  }

  const agisoMessagingEnabled = parseBoolean(
    process.env.AGISO_MESSAGING_ENABLED
  );
  if (agisoMessagingEnabled !== null) {
    nextConfig.platforms.agiso.messaging.enabled = agisoMessagingEnabled;
  }

  const ninetyoneUserId = String(process.env.NINETYONE_USER_ID || "").trim();
  if (ninetyoneUserId) {
    nextConfig.platforms.ninetyone.userId = ninetyoneUserId;
  }

  const ninetyoneSecret = String(process.env.NINETYONE_SECRET || "").trim();
  if (ninetyoneSecret) {
    nextConfig.platforms.ninetyone.secret = ninetyoneSecret;
  }

  const ninetyoneVersion = String(process.env.NINETYONE_VERSION || "").trim();
  if (ninetyoneVersion) {
    nextConfig.platforms.ninetyone.version = ninetyoneVersion;
  }

  const ninetyoneShopId = String(process.env.NINETYONE_SHOP_ID || "").trim();
  if (ninetyoneShopId) {
    nextConfig.platforms.ninetyone.shopId = ninetyoneShopId;
  }

  const ninetyoneShopName = String(
    process.env.NINETYONE_SHOP_NAME || ""
  ).trim();
  if (ninetyoneShopName) {
    nextConfig.platforms.ninetyone.shopName = ninetyoneShopName;
  }

  const ninetyoneTimestampToleranceSeconds = parseInteger(
    process.env.NINETYONE_TIMESTAMP_TOLERANCE_SECONDS
  );
  if (ninetyoneTimestampToleranceSeconds !== null) {
    nextConfig.platforms.ninetyone.timestampToleranceSeconds =
      ninetyoneTimestampToleranceSeconds;
  }

  const ninetyoneCardsEncoding = String(
    process.env.NINETYONE_CARDS_ENCODING || ""
  ).trim();
  if (ninetyoneCardsEncoding) {
    nextConfig.platforms.ninetyone.cardsEncoding = ninetyoneCardsEncoding;
  }

  const cloudtentaclesBaseUrl = String(
    process.env.CLOUDTENTACLES_BASE_URL || ""
  ).trim();
  if (cloudtentaclesBaseUrl) {
    nextConfig.platforms.cloudtentacles.baseUrl = cloudtentaclesBaseUrl;
  }

  const cloudtentaclesTimeoutMs = parseInteger(
    process.env.CLOUDTENTACLES_TIMEOUT_MS
  );
  if (cloudtentaclesTimeoutMs !== null) {
    nextConfig.platforms.cloudtentacles.timeoutMs = cloudtentaclesTimeoutMs;
  }

  const cloudtentaclesSendSmsPath = String(
    process.env.CLOUDTENTACLES_SEND_SMS_PATH || ""
  ).trim();
  if (cloudtentaclesSendSmsPath) {
    nextConfig.platforms.cloudtentacles.sendSmsPath = cloudtentaclesSendSmsPath;
  }

  const cloudtentaclesLoginPath = String(
    process.env.CLOUDTENTACLES_LOGIN_PATH || ""
  ).trim();
  if (cloudtentaclesLoginPath) {
    nextConfig.platforms.cloudtentacles.loginPath = cloudtentaclesLoginPath;
  }

  const cloudtentaclesUserInfoPath = String(
    process.env.CLOUDTENTACLES_USER_INFO_PATH || ""
  ).trim();
  if (cloudtentaclesUserInfoPath) {
    nextConfig.platforms.cloudtentacles.userInfoPath =
      cloudtentaclesUserInfoPath;
  }

  const cloudtentaclesAssetPath = String(
    process.env.CLOUDTENTACLES_ASSET_PATH || ""
  ).trim();
  if (cloudtentaclesAssetPath) {
    nextConfig.platforms.cloudtentacles.assetPath = cloudtentaclesAssetPath;
  }

  const cloudtentaclesPermissionPath = String(
    process.env.CLOUDTENTACLES_PERMISSION_PATH || ""
  ).trim();
  if (cloudtentaclesPermissionPath) {
    nextConfig.platforms.cloudtentacles.permissionPath =
      cloudtentaclesPermissionPath;
  }

  const cloudtentaclesCategoriesPath = String(
    process.env.CLOUDTENTACLES_CATEGORIES_PATH || ""
  ).trim();
  if (cloudtentaclesCategoriesPath) {
    nextConfig.platforms.cloudtentacles.categoriesPath =
      cloudtentaclesCategoriesPath;
  }

  const cloudtentaclesSkuListPath = String(
    process.env.CLOUDTENTACLES_SKU_LIST_PATH || ""
  ).trim();
  if (cloudtentaclesSkuListPath) {
    nextConfig.platforms.cloudtentacles.skuListPath = cloudtentaclesSkuListPath;
  }

  const cloudtentaclesSkuBuyPath = String(
    process.env.CLOUDTENTACLES_SKU_BUY_PATH || ""
  ).trim();
  if (cloudtentaclesSkuBuyPath) {
    nextConfig.platforms.cloudtentacles.skuBuyPath = cloudtentaclesSkuBuyPath;
  }

  const cloudtentaclesKnapsackPath = String(
    process.env.CLOUDTENTACLES_KNAPSACK_PATH || ""
  ).trim();
  if (cloudtentaclesKnapsackPath) {
    nextConfig.platforms.cloudtentacles.knapsackPath =
      cloudtentaclesKnapsackPath;
  }

  const cloudtentaclesVnListPath = String(
    process.env.CLOUDTENTACLES_VN_LIST_PATH || ""
  ).trim();
  if (cloudtentaclesVnListPath) {
    nextConfig.platforms.cloudtentacles.vnListPath = cloudtentaclesVnListPath;
  }

  const cloudtentaclesVnAppointPath = String(
    process.env.CLOUDTENTACLES_VN_APPOINT_PATH || ""
  ).trim();
  if (cloudtentaclesVnAppointPath) {
    nextConfig.platforms.cloudtentacles.vnAppointPath =
      cloudtentaclesVnAppointPath;
  }

  const cloudtentaclesVnGenerateLoginCodePath = String(
    process.env.CLOUDTENTACLES_VN_GENERATE_LOGIN_CODE_PATH || ""
  ).trim();
  if (cloudtentaclesVnGenerateLoginCodePath) {
    nextConfig.platforms.cloudtentacles.vnGenerateLoginCodePath =
      cloudtentaclesVnGenerateLoginCodePath;
  }

  const cloudtentaclesVnVerifCodePath = String(
    process.env.CLOUDTENTACLES_VN_VERIF_CODE_PATH || ""
  ).trim();
  if (cloudtentaclesVnVerifCodePath) {
    nextConfig.platforms.cloudtentacles.vnVerifCodePath =
      cloudtentaclesVnVerifCodePath;
  }

  const cloudtentaclesVnVerifyLoginCodePath = String(
    process.env.CLOUDTENTACLES_VN_VERIFY_LOGIN_CODE_PATH || ""
  ).trim();
  if (cloudtentaclesVnVerifyLoginCodePath) {
    nextConfig.platforms.cloudtentacles.vnVerifyLoginCodePath =
      cloudtentaclesVnVerifyLoginCodePath;
  }

  const cloudtentaclesVnBindUrlPath = String(
    process.env.CLOUDTENTACLES_VN_BIND_URL_PATH || ""
  ).trim();
  if (cloudtentaclesVnBindUrlPath) {
    nextConfig.platforms.cloudtentacles.vnBindUrlPath =
      cloudtentaclesVnBindUrlPath;
  }

  const cloudtentaclesVnBindInfoPath = String(
    process.env.CLOUDTENTACLES_VN_BIND_INFO_PATH || ""
  ).trim();
  if (cloudtentaclesVnBindInfoPath) {
    nextConfig.platforms.cloudtentacles.vnBindInfoPath =
      cloudtentaclesVnBindInfoPath;
  }

  const cloudtentaclesVnBackPath = String(
    process.env.CLOUDTENTACLES_VN_BACK_PATH || ""
  ).trim();
  if (cloudtentaclesVnBackPath) {
    nextConfig.platforms.cloudtentacles.vnBackPath = cloudtentaclesVnBackPath;
  }

  const cloudtentaclesBindUrlTtlSeconds = parseInteger(
    process.env.CLOUDTENTACLES_BIND_URL_TTL_SECONDS
  );
  if (cloudtentaclesBindUrlTtlSeconds !== null) {
    nextConfig.platforms.cloudtentacles.bindUrlTtlSeconds =
      cloudtentaclesBindUrlTtlSeconds;
  }

  const cloudtentaclesBindUrlProbeIntervalSeconds = parseInteger(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_INTERVAL_SECONDS
  );
  if (cloudtentaclesBindUrlProbeIntervalSeconds !== null) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeIntervalSeconds =
      cloudtentaclesBindUrlProbeIntervalSeconds;
  }

  const cloudtentaclesBindUrlProbeTimeoutMs = parseInteger(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_TIMEOUT_MS
  );
  if (cloudtentaclesBindUrlProbeTimeoutMs !== null) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeTimeoutMs =
      cloudtentaclesBindUrlProbeTimeoutMs;
  }

  const cloudtentaclesBindUrlProbeUserAgent = String(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_USER_AGENT || ""
  ).trim();
  if (cloudtentaclesBindUrlProbeUserAgent) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeUserAgent =
      cloudtentaclesBindUrlProbeUserAgent;
  }

  const cloudtentaclesBindUrlProbeEndpoint = String(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_ENDPOINT || ""
  ).trim();
  if (cloudtentaclesBindUrlProbeEndpoint) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeEndpoint =
      cloudtentaclesBindUrlProbeEndpoint;
  }

  const cloudtentaclesBindUrlProbeChartId = String(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_CHART_ID || ""
  ).trim();
  if (cloudtentaclesBindUrlProbeChartId) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeChartId =
      cloudtentaclesBindUrlProbeChartId;
  }

  const cloudtentaclesBindUrlProbeSubChartId = String(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_SUB_CHART_ID || ""
  ).trim();
  if (cloudtentaclesBindUrlProbeSubChartId) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeSubChartId =
      cloudtentaclesBindUrlProbeSubChartId;
  }

  const cloudtentaclesBindUrlProbeIdeToken = String(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_IDE_TOKEN || ""
  ).trim();
  if (cloudtentaclesBindUrlProbeIdeToken) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeIdeToken =
      cloudtentaclesBindUrlProbeIdeToken;
  }

  const cloudtentaclesBindUrlProbeActivityUrl = String(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_ACTIVITY_URL || ""
  ).trim();
  if (cloudtentaclesBindUrlProbeActivityUrl) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeActivityUrl =
      cloudtentaclesBindUrlProbeActivityUrl;
  }

  const cloudtentaclesBindUrlProbeReferer = String(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_REFERER || ""
  ).trim();
  if (cloudtentaclesBindUrlProbeReferer) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeReferer =
      cloudtentaclesBindUrlProbeReferer;
  }

  const cloudtentaclesBindUrlProbeExtraCookie = String(
    process.env.CLOUDTENTACLES_BIND_URL_PROBE_EXTRA_COOKIE || ""
  ).trim();
  if (cloudtentaclesBindUrlProbeExtraCookie) {
    nextConfig.platforms.cloudtentacles.bindUrlProbeExtraCookie =
      cloudtentaclesBindUrlProbeExtraCookie;
  }

  const cloudtentaclesPublicKeyPem = String(
    process.env.CLOUDTENTACLES_PUBLIC_KEY_PEM || ""
  ).trim();
  if (cloudtentaclesPublicKeyPem) {
    nextConfig.platforms.cloudtentacles.publicKeyPem =
      cloudtentaclesPublicKeyPem;
  }

  const cloudtentaclesClientSource = String(
    process.env.CLOUDTENTACLES_CLIENT_SOURCE || ""
  ).trim();
  if (cloudtentaclesClientSource) {
    nextConfig.platforms.cloudtentacles.clientSource =
      cloudtentaclesClientSource;
  }

  const cloudtentaclesDeviceId = String(
    process.env.CLOUDTENTACLES_DEVICE_ID || ""
  ).trim();
  if (cloudtentaclesDeviceId) {
    nextConfig.platforms.cloudtentacles.deviceId = cloudtentaclesDeviceId;
  }

  const cloudtentaclesDeviceType = parseInteger(
    process.env.CLOUDTENTACLES_DEVICE_TYPE
  );
  if (cloudtentaclesDeviceType !== null) {
    nextConfig.platforms.cloudtentacles.deviceType = cloudtentaclesDeviceType;
  }

  const proofMode = String(process.env.TENCENT_REDEEM_PROOF_MODE || "").trim();
  if (proofMode) {
    nextConfig.redeem.proofMode = proofMode;
  }

  return nextConfig;
}

function deepMerge(baseValue, overrideValue) {
  if (!isPlainObject(baseValue)) {
    return cloneValue(overrideValue);
  }

  const result = cloneValue(baseValue);

  if (!isPlainObject(overrideValue)) {
    return result;
  }

  for (const [key, value] of Object.entries(overrideValue)) {
    if (isPlainObject(value) && isPlainObject(result[key])) {
      result[key] = deepMerge(result[key], value);
      continue;
    }

    result[key] = cloneValue(value);
  }

  return result;
}

function cloneValue(value) {
  if (Array.isArray(value)) {
    return value.map((item) => cloneValue(item));
  }

  if (isPlainObject(value)) {
    const output = {};
    for (const [key, item] of Object.entries(value)) {
      output[key] = cloneValue(item);
    }
    return output;
  }

  return value;
}

function isPlainObject(value) {
  return Object.prototype.toString.call(value) === "[object Object]";
}

function parseBoolean(rawValue) {
  const normalized = String(rawValue || "")
    .trim()
    .toLowerCase();

  if (!normalized) {
    return null;
  }

  if (["1", "true", "yes", "on"].includes(normalized)) {
    return true;
  }

  if (["0", "false", "no", "off"].includes(normalized)) {
    return false;
  }

  return null;
}

function parseInteger(rawValue) {
  const normalized = String(rawValue || "").trim();

  if (!normalized) {
    return null;
  }

  const parsed = Number(normalized);
  return Number.isFinite(parsed) ? parsed : null;
}

function parseJsonArray(rawValue) {
  const normalized = String(rawValue || "").trim();

  if (!normalized) {
    return null;
  }

  try {
    const parsed = JSON.parse(normalized);
    return Array.isArray(parsed) ? parsed : null;
  } catch {
    return null;
  }
}

function normalizeBooleanLike(value) {
  if (typeof value === "boolean") {
    return value;
  }

  return parseBoolean(value);
}