import {
  RPA_REQUIRED_SELECTOR_ENV_KEYS,
  RPA_SELECTOR_ENV_KEYS,
} from "@/lib/rpa/env";
import { getSelectorSpecs } from "@/lib/rpa/selector-specs";
import { RpaError } from "@/modules/rpa/errors";

export type RpaSelectorKey = (typeof RPA_SELECTOR_ENV_KEYS)[number];
export type RpaRequiredSelectorKey =
  (typeof RPA_REQUIRED_SELECTOR_ENV_KEYS)[number];

/** CI/单测 mock 用占位 selector */
const MOCK_SELECTOR_VALUES: Record<RpaSelectorKey, string> = {
  RPA_SELECTOR_PICKUP_STREET: '[data-testid="pickup-street"]',
  RPA_SELECTOR_DELIVERY_STREET: '[data-testid="delivery-street"]',
  RPA_SELECTOR_ADDRESS_SUGGESTION: ".address-suggestion-item",
  RPA_SELECTOR_SUBMIT: 'button[type="submit"]',
  RPA_SELECTOR_STANDARD_TAB: '[data-testid="service-standard"]',
  RPA_SELECTOR_GUARANTEED_TAB: '[data-testid="service-guaranteed"]',
  RPA_SELECTOR_LOWEST_OPTION: '[data-testid="rate-lowest"]',
  RPA_SELECTOR_FASTEST_OPTION: '[data-testid="rate-fastest"]',
  RPA_SELECTOR_PRICE: '[data-testid="rate-price"]',
  RPA_SELECTOR_QUOTE_WIDGET: "#react-quoter-landing-plugin",
};

export function isRpaMockMode(): boolean {
  return process.env.RPA_MOCK_MODE === "true";
}

/** 非空 selector；禁止空字符串 fallback（env 显式空串时走内置回退，仍空则 fail-fast） */
export function getSelector(key: RpaSelectorKey): string {
  const spec = getSelectorSpecs(key).find((s) => s.trim().length > 0)?.trim();
  if (spec) {
    return spec;
  }
  if (isRpaMockMode()) {
    const mock = MOCK_SELECTOR_VALUES[key]?.trim();
    if (mock) {
      return mock;
    }
  }
  throw new RpaError("STRUCT_CHANGE", `${key} 未配置或为空`, {
    retryable: false,
  });
}

/** @deprecated 使用 getSelector */
export function getRpaSelector(key: RpaSelectorKey): string {
  return getSelector(key);
}

/** rpa-worker 启动前校验 registry：任一必填 key 无法解析为非空 selector 则 fail-fast */
export function assertRpaSelectorsEnv(): void {
  if (isRpaMockMode()) {
    return;
  }
  const failures: string[] = [];
  for (const key of RPA_REQUIRED_SELECTOR_ENV_KEYS) {
    try {
      getSelector(key);
    } catch {
      failures.push(key);
    }
  }
  if (failures.length > 0) {
    throw new Error(
      `[rpa-worker] RPA selector 未初始化或为空: ${failures.join(", ")}`,
    );
  }
}