const { Bot } = require("grammy");

const BOT_TOKEN = process.env.TELEGRAM_BOT_TOKEN;
const ZEN_API_KEY = process.env.OPENCODE_ZEN_KEY;

console.log("[TEST] Starting debug bot...");
console.log("[TEST] Token:", BOT_TOKEN ? BOT_TOKEN.substring(0, 10) + "..." : "MISSING");
console.log("[TEST] Key:", ZEN_API_KEY ? ZEN_API_KEY.substring(0, 12) + "..." : "MISSING");

const bot = new Bot(BOT_TOKEN);

bot.on("message", async (ctx) => {
  const info = {
    chatId: ctx.chat.id,
    chatType: ctx.chat.type,
    text: ctx.message.text || "(non-text)",
    fromId: ctx.from?.id,
    fromUser: ctx.from?.username,
  };
  console.log("[MSG] Received:", JSON.stringify(info));

  // Step 1: Echo test
  try {
    await ctx.reply("Echo: " + (ctx.message.text || "no text"));
    console.log("[MSG] Echo reply sent OK");
  } catch (e) {
    console.error("[MSG] Echo reply FAILED:", e.message);
    return;
  }

  // Step 2: API test
  if (ctx.message.text && ctx.message.text.startsWith("/")) return;

  try {
    console.log("[API] Calling Zen API...");
    const resp = await fetch("https://opencode.ai/zen/v1/chat/completions", {
      method: "POST",
      headers: {
        Authorization: "Bearer " + ZEN_API_KEY,
        "Content-Type": "application/json",
      },
      body: JSON.stringify({
        model: "deepseek-v4-flash-free",
        messages: [{ role: "user", content: ctx.message.text }],
        max_tokens: 4096,
      }),
    });
    console.log("[API] Status:", resp.status);
    const data = await resp.json();
    const msg = data.choices?.[0]?.message;
    let reply = msg?.content || msg?.reasoning_content || "(empty)";
    console.log("[API] Reply length:", reply.length);
    await ctx.reply(reply.substring(0, 4000));
    console.log("[API] Reply sent OK");
  } catch (e) {
    console.error("[API] FAILED:", e.message);
    await ctx.reply("API Error: " + e.message);
  }
});

bot.catch((err) => console.error("[BOT ERROR]", err));

bot.start({
  onStart: () => {
    console.log("[BOT] Running! Send a message to @jotish66bot NOW...");
  },
});