import { spawn } from "node:child_process";
import { prisma } from "@kokorone/db";

const API_PORT = process.env.PORT_API ?? "3001";
const CHARACTER_ID = "seed-character-genki";
const USER_ID = "seed-user-primary";

async function post(path, body) {
  const res = await fetch(`http://localhost:${API_PORT}${path}`, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify(body ?? {}),
  });
  return res;
}

async function postJson(path, body) {
  const res = await post(path, body);
  if (!res.ok) {
    throw new Error(`POST ${path} 回傳 ${res.status}`);
  }
  return res.json();
}

async function get(path) {
  const res = await fetch(`http://localhost:${API_PORT}${path}`);
  if (!res.ok) {
    throw new Error(`GET ${path} 回傳 ${res.status}`);
  }
  return res.json();
}

function sendMessage(sessionId, text, extra = {}) {
  return postJson(`/dialogue/${CHARACTER_ID}/sessions/${sessionId}/messages`, {
    userId: USER_ID,
    text,
    ...extra,
  });
}

export default async function smokeF() {
  // F-7 + F-1：同 seed 兩次獨立 session 應得到完全相同的輸出（可重現）
  const seedA = "smoke-f-seed-a-" + Date.now();
  const seedB = "smoke-f-seed-b-" + Date.now();
  const r1 = await sendMessage(seedA, "今天過得如何？", { seed: 12345 });
  const r2 = await sendMessage(seedB, "今天過得如何？", { seed: 12345 });
  if (r1.text !== r2.text) {
    throw new Error(`同 seed 應輸出相同文字，實際：「${r1.text}」vs「${r2.text}」`);
  }
  if (r1.isFastChannel) {
    throw new Error("一般輸入不應被判定為快速通道");
  }

  // F-6 上下文組裝器：一次對話應可輸出完整組裝內容快照
  const requiredKeys = [
    "character",
    "emotion",
    "relationship",
    "retrievedMemories",
    "history",
    "userInput",
    "injectedMemoryIds",
    "seed",
  ];
  for (const key of requiredKeys) {
    if (!(key in r1.context)) {
      throw new Error(`上下文快照缺少欄位：${key}`);
    }
  }
  if (r1.context.injectedMemoryIds.length === 0) {
    throw new Error("一般輸入的上下文組裝應能檢索到至少一筆既有記憶（種子記憶）");
  }

  // F-4 雙速通道：問候與危險輸入不應觸發記憶檢索（injectedMemoryIds 應為空）
  const greetingSession = "smoke-f-greeting-" + Date.now();
  const greeting = await sendMessage(greetingSession, "早安！");
  if (!greeting.isFastChannel) {
    throw new Error("固定問候應被判定為快速通道");
  }
  if (greeting.context.injectedMemoryIds.length !== 0) {
    throw new Error("快速通道（問候）不應觸發記憶檢索");
  }

  const dangerSession = "smoke-f-danger-" + Date.now();
  const danger = await sendMessage(dangerSession, "我覺得好痛苦，好想死");
  if (!danger.isFastChannel) {
    throw new Error("明確危險輸入應被判定為快速通道");
  }
  if (danger.context.injectedMemoryIds.length !== 0) {
    throw new Error("快速通道（危險輸入）不應觸發記憶檢索");
  }
  if (!danger.text.includes("1995")) {
    throw new Error("危險輸入的快速通道回應應包含求助資源");
  }

  // F-5 行為強化迴路：稱讚加權、糾正後修正版取代舊模式
  const situation = "fast-channel:greeting";
  const oldPattern = "smoke-f-old-pattern-" + Date.now();
  const newPattern = "smoke-f-new-pattern-" + Date.now();
  await postJson(`/dialogue/${CHARACTER_ID}/reinforce`, { situation, responsePattern: oldPattern });
  await postJson(`/dialogue/${CHARACTER_ID}/reinforce`, { situation, responsePattern: oldPattern });
  const beforeCorrection = await get(
    `/dialogue/${CHARACTER_ID}/top-rule?situation=${encodeURIComponent(situation)}`,
  );
  if (beforeCorrection.responsePattern !== oldPattern || beforeCorrection.weight !== 2) {
    throw new Error("稱讚加權後應為權重最高的規則（weight=2）");
  }

  await postJson(`/dialogue/${CHARACTER_ID}/correct`, {
    situation,
    oldResponsePattern: oldPattern,
    newResponsePattern: newPattern,
  });
  const afterCorrection = await get(
    `/dialogue/${CHARACTER_ID}/top-rule?situation=${encodeURIComponent(situation)}`,
  );
  if (afterCorrection.responsePattern !== newPattern) {
    throw new Error("糾正後修正版應取代舊模式成為權重最高者");
  }

  const greetingAfterCorrection = await sendMessage("smoke-f-greeting2-" + Date.now(), "早安！");
  if (greetingAfterCorrection.text !== newPattern) {
    throw new Error("糾正後的快速通道回應應套用修正版模式");
  }

  // F-3 輸出過濾層：含禁則詞的模板輸出應被攔截或改寫
  const forbiddenPattern = "早安，你這個死八嘎";
  await postJson(`/dialogue/${CHARACTER_ID}/reinforce`, { situation, responsePattern: forbiddenPattern });
  await postJson(`/dialogue/${CHARACTER_ID}/reinforce`, { situation, responsePattern: forbiddenPattern });
  await postJson(`/dialogue/${CHARACTER_ID}/reinforce`, { situation, responsePattern: forbiddenPattern });
  const filteredGreeting = await sendMessage("smoke-f-filter-" + Date.now(), "早安！");
  if (filteredGreeting.text.includes("死八嘎")) {
    throw new Error("含禁則詞的回應未被輸出過濾層攔截或改寫");
  }

  // 清理本次測試建立的 ProceduralRule，避免重複執行時累積髒資料
  await prisma.proceduralRule.deleteMany({ where: { characterId: CHARACTER_ID, situation } });

  // R-3：ClaudeProvider 已經是真的呼叫，不再是空殼。這裡只驗證 Provider 切換的「配線」本身
  // （選對了 ClaudeProvider、缺金鑰時的錯誤處理正確），不對 CLIProxy 發真的請求——真正的
  // 回歸測試基準仍是 Mock 模板庫（同 R-3 驗收註記），自動化冒煙測試不應依賴外部服務目前是否可用。
  await verifyClaudeProviderWiring();
}

async function verifyClaudeProviderWiring() {
  const port = "3091";
  const childEnv = { ...process.env, PORT: port, LLM_PROVIDER: "claude" };
  delete childEnv.CLAUDE_API_KEY;
  const child = spawn("node", ["apps/api/dist/main.js"], {
    env: childEnv,
    stdio: ["ignore", "pipe", "pipe"],
  });

  let output = "";
  child.stdout.on("data", (chunk) => (output += chunk.toString()));
  child.stderr.on("data", (chunk) => (output += chunk.toString()));

  try {
    const deadline = Date.now() + 15_000;
    while (!output.includes("啟動") && Date.now() < deadline) {
      await new Promise((resolve) => setTimeout(resolve, 200));
    }
    if (!output.includes("LLM_PROVIDER=claude")) {
      throw new Error("LLM_PROVIDER=claude 啟動時未輸出對應的 INF log");
    }

    let healthOk = false;
    const healthDeadline = Date.now() + 15_000;
    while (!healthOk && Date.now() < healthDeadline) {
      try {
        const res = await fetch(`http://localhost:${port}/health`);
        healthOk = res.ok;
      } catch {
        // 尚未就緒，繼續等待
      }
      if (!healthOk) {
        await new Promise((resolve) => setTimeout(resolve, 300));
      }
    }
    if (!healthOk) {
      throw new Error("LLM_PROVIDER=claude 的測試行程未能成功啟動");
    }

    const res = await fetch(`http://localhost:${port}/dialogue/${CHARACTER_ID}/sessions/claude-stub-test/messages`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ userId: USER_ID, text: "今天發生了很多事情想跟你分享" }),
    });
    // 沒有金鑰應該在呼叫 generate() 時就快速、確定性地失敗（不對 CLIProxy 發任何請求）。
    if (res.status < 500) {
      throw new Error(`缺少 CLAUDE_API_KEY 時應該呼叫失敗，實際回傳 ${res.status}`);
    }
  } finally {
    child.kill("SIGKILL");
  }
}