import { prisma } from "@kokorone/db";

const API_PORT = process.env.PORT_API ?? "3001";
const CHARACTER_ID = "seed-character-genki";
const TEST_USER_ID = "smoke-e-test-user";
const OTHER_USER_ID = "smoke-e-other-user";

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 ?? {}),
  });
  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();
}

async function resetRelationship(userId, data) {
  await prisma.relationship.upsert({
    where: { characterId_userId: { characterId: CHARACTER_ID, userId } },
    update: { ...data, updatedAt: new Date() },
    create: { characterId: CHARACTER_ID, userId, ...data },
  });
}

export default async function smokeE() {
  await prisma.user.upsert({
    where: { id: TEST_USER_ID },
    update: {},
    create: { id: TEST_USER_ID, name: "關係測試使用者" },
  });
  await prisma.user.upsert({
    where: { id: OTHER_USER_ID },
    update: {},
    create: { id: OTHER_USER_ID, name: "另一位測試使用者" },
  });
  await prisma.relationship.deleteMany({ where: { characterId: CHARACTER_ID, userId: TEST_USER_ID } });

  // E-1 親密度與信任讀寫：未知對象首次互動自動建檔，預設「禮貌＋防備」
  const created = await get(`/relationships/${CHARACTER_ID}/${TEST_USER_ID}`);
  if (created.relationship.intimacy !== 0 || created.relationship.trust !== 0 || created.relationship.stage !== "STRANGER") {
    throw new Error("新對象自動建檔的預設值不符「禮貌＋防備」（intimacy/trust 應為 0，stage 應為 STRANGER）");
  }

  // E-2 關係帳本與負向偏誤：同等級正負事件各一次後，淨值為負
  await post(`/relationships/${CHARACTER_ID}/${TEST_USER_ID}/events`, { event: "稱讚了她的努力", weight: 10 });
  await post(`/relationships/${CHARACTER_ID}/${TEST_USER_ID}/events`, { event: "取消約定放她鴿子", weight: -10 });
  const { net } = await get(`/relationships/${CHARACTER_ID}/${TEST_USER_ID}/ledger-net`);
  if (net >= 0) {
    throw new Error(`同等級正負事件後淨值應為負，實際為 ${net}`);
  }

  // E-3 親密度分層：連續日常互動累積親密度並跨越門檻，事件可被獨立訂閱者記錄
  await resetRelationship(TEST_USER_ID, { intimacy: 0, trust: 0, stage: "STRANGER" });
  for (let i = 0; i < 11; i++) {
    await post(`/relationships/${CHARACTER_ID}/${TEST_USER_ID}/interactions`, {});
  }
  const afterInteractions = await get(`/relationships/${CHARACTER_ID}/${TEST_USER_ID}`);
  if (afterInteractions.relationship.stage !== "ACQUAINTANCE") {
    throw new Error(`累積 11 次互動（+22 親密度）後應進入認識階段，實際為 ${afterInteractions.relationship.stage}`);
  }
  const { events } = await get("/relationships/stage-events");
  const crossedEvent = events.find(
    (e) => e.characterId === CHARACTER_ID && e.userId === TEST_USER_ID && e.fromStage === "STRANGER" && e.toStage === "ACQUAINTANCE",
  );
  if (!crossedEvent) {
    throw new Error("跨越親密度分層門檻時未發出可訂閱事件（StageChangeLogService 未收到）");
  }

  // E-4 關係時間衰減：久未互動時親密度回落，並標記「久未見」
  const fortyDaysLater = new Date(Date.now() + 40 * 24 * 60 * 60 * 1000).toISOString();
  const decayed = await get(`/relationships/${CHARACTER_ID}/${TEST_USER_ID}?now=${encodeURIComponent(fortyDaysLater)}`);
  if (!decayed.longAbsence) {
    throw new Error("久未互動應標記 longAbsence 為 true");
  }
  if (decayed.relationship.intimacy >= afterInteractions.relationship.intimacy) {
    throw new Error("久未互動後親密度應回落");
  }

  // E-6 意圖推測：同一句話在高／低親密度下得到不同解讀
  await resetRelationship(TEST_USER_ID, { intimacy: 80, trust: 50, stage: "BONDED" });
  await resetRelationship(OTHER_USER_ID, { intimacy: 0, trust: 0, stage: "STRANGER" });
  const ambiguousText = encodeURIComponent("你這個笨蛋");
  const highIntimacyIntent = await get(`/relationships/${CHARACTER_ID}/${TEST_USER_ID}/intent?text=${ambiguousText}`);
  const lowIntimacyIntent = await get(`/relationships/${CHARACTER_ID}/${OTHER_USER_ID}/intent?text=${ambiguousText}`);
  if (highIntimacyIntent.tag !== "JOKE") {
    throw new Error(`高親密度下同一句話應解讀為玩笑，實際為 ${highIntimacyIntent.tag}`);
  }
  if (lowIntimacyIntent.tag !== "OFFENSE") {
    throw new Error(`低親密度下同一句話應解讀為冒犯，實際為 ${lowIntimacyIntent.tag}`);
  }

  // E-5 關係加權檢索接點：關鍵字／時間／情緒條件相同時，與當前對象相關的記憶排序優先
  const now = new Date("2026-08-01T00:00:00.000Z");
  await prisma.episodicMemory.upsert({
    where: { id: "smoke-e5-related" },
    update: { relatedUserId: TEST_USER_ID, occurredAt: now, emotionIntensity: 0.5 },
    create: {
      id: "smoke-e5-related",
      characterId: CHARACTER_ID,
      content: "smoke-e5 測試記憶（與測試使用者相關）",
      occurredAt: now,
      emotionTag: "CALM",
      emotionIntensity: 0.5,
      source: "INTERACTION",
      weight: 1,
      relatedUserId: TEST_USER_ID,
    },
  });
  await prisma.episodicMemory.upsert({
    where: { id: "smoke-e5-unrelated" },
    update: { relatedUserId: null, occurredAt: now, emotionIntensity: 0.5 },
    create: {
      id: "smoke-e5-unrelated",
      characterId: CHARACTER_ID,
      content: "smoke-e5 測試記憶（與測試使用者無關）",
      occurredAt: now,
      emotionTag: "CALM",
      emotionIntensity: 0.5,
      source: "INTERACTION",
      weight: 1,
    },
  });

  const withoutRelation = await get(`/memory/${CHARACTER_ID}/retrieve?query=smoke-e5&limit=2`);
  const relatedRankWithout = withoutRelation.results.findIndex((r) => r.id === "smoke-e5-related");
  const unrelatedRankWithout = withoutRelation.results.findIndex((r) => r.id === "smoke-e5-unrelated");
  if (relatedRankWithout === -1 || unrelatedRankWithout === -1) {
    throw new Error("E-5 測試記憶未被檢索到");
  }

  const withRelation = await get(
    `/memory/${CHARACTER_ID}/retrieve?query=smoke-e5&limit=2&relatedUserId=${TEST_USER_ID}`,
  );
  const relatedRankWith = withRelation.results.findIndex((r) => r.id === "smoke-e5-related");
  const unrelatedRankWith = withRelation.results.findIndex((r) => r.id === "smoke-e5-unrelated");
  if (relatedRankWith !== 0 || relatedRankWith >= unrelatedRankWith) {
    throw new Error("帶入 relatedUserId 後，與當前對象相關的記憶應排序優先於無關記憶");
  }

  // 清理本次測試建立的資料，避免重複執行時累積髒資料
  await prisma.episodicMemory.deleteMany({ where: { id: { in: ["smoke-e5-related", "smoke-e5-unrelated"] } } });
  await prisma.relationship.deleteMany({ where: { characterId: CHARACTER_ID, userId: { in: [TEST_USER_ID, OTHER_USER_ID] } } });
}