export type BotPlatform = "telegram" | "max";

const TELEGRAM_API_BASE = "https://api.telegram.org/bot";
const MAX_API_BASE = process.env.MAX_BOT_API_BASE || "https://api.max.ru/bot";

export async function sendBotMessage(
  platform: BotPlatform,
  chatId: string,
  text: string,
  options?: {
    parseMode?: "HTML" | "Markdown";
    replyMarkup?: any;
    token?: string;
  }
): Promise<{ ok: boolean; error?: string }> {
  const token = options?.token || (platform === "telegram" ? process.env.TELEGRAM_BOT_TOKEN : process.env.MAX_BOT_TOKEN);
  if (!token) {
    return { ok: false, error: `Token not configured for ${platform}` };
  }

  const base = platform === "telegram" ? `${TELEGRAM_API_BASE}${token}` : `${MAX_API_BASE}${token}`;
  const url = `${base}/sendMessage`;

  try {
    const body: Record<string, any> = {
      chat_id: chatId,
      text,
    };
    if (options?.parseMode) body.parse_mode = options.parseMode;
    if (options?.replyMarkup) body.reply_markup = options.replyMarkup;

    const response = await fetch(url, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(body),
    });

    if (!response.ok) {
      const errText = await response.text();
      console.error(`[${platform}] sendMessage error ${response.status}:`, errText);
      return { ok: false, error: errText };
    }

    return { ok: true };
  } catch (err: any) {
    console.error(`[${platform}] sendMessage failed:`, err);
    return { ok: false, error: err.message || "Request failed" };
  }
}

export async function sendBotPhoto(
  platform: BotPlatform,
  chatId: string,
  photoUrl: string,
  caption?: string,
  options?: { token?: string }
): Promise<{ ok: boolean; error?: string }> {
  const token = options?.token || (platform === "telegram" ? process.env.TELEGRAM_BOT_TOKEN : process.env.MAX_BOT_TOKEN);
  if (!token) {
    return { ok: false, error: `Token not configured for ${platform}` };
  }

  const base = platform === "telegram" ? `${TELEGRAM_API_BASE}${token}` : `${MAX_API_BASE}${token}`;
  const url = `${base}/sendPhoto`;

  try {
    const body: Record<string, any> = {
      chat_id: chatId,
      photo: photoUrl,
    };
    if (caption) body.caption = caption;

    const response = await fetch(url, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(body),
    });

    if (!response.ok) {
      const errText = await response.text();
      console.error(`[${platform}] sendPhoto error ${response.status}:`, errText);
      return { ok: false, error: errText };
    }

    return { ok: true };
  } catch (err: any) {
    console.error(`[${platform}] sendPhoto failed:`, err);
    return { ok: false, error: err.message || "Request failed" };
  }
}