import cloud from '@lafjs/cloud';
import Utils from "@/Utils";
const db = cloud.database();
const level1 = [19, 20, 21, 22, 23];
const level2 = [24, 25];
const level3 = [26];
/**头像抽卡 */
export default async function (ctx: FunctionContext) {
  const uid = ctx.body.uid;
  let dbname = "users";
  const gameName = ctx.body.gameName;
  if (gameName == "iaa") {
    dbname = "usersAd";
  }
  let res = await db.collection(dbname).where({ _id: uid }).getOne();
  if (!res.data) {
    return {
      code: 0, data: null, msg: "未获取到玩家信息"
    }
  }
  const token1 = ctx.body.token;
  if (res.data && res.data.token) {
    let istoken = Utils.checkToken(token1, res.data.token);
    if (!istoken) {
      return { code: 0, data: null, msg: "token校验失败" };
    }
  }
  let film = res.data.film;
  if (!film && film != 0) {
    film = res.data.levelAmount;
  }

  let headArr = res.data.headArr;
  if (!headArr) {
    headArr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17]                                                                                                                                                                                                                                                                                                                                                                                                                                                                ];
  }


  let list1 = [];
  let list2 = [];
  let list3 = [];
  for (let i = 0; i < level1.length; i++) {
    if (!headArr.includes(level1[i])) {
      list1.push(level1[i]);
    }
  }
  for (let i = 0; i < level2.length; i++) {
    if (!headArr.includes(level2[i])) {
      list2.push(level2[i]);
    }
  }
  for (let i = 0; i < level3.length; i++) {
    if (!headArr.includes(level3[i])) {
      list3.push(level3[i]);
    }
  }
  let total = list1.length * 150 + list2.length * 50 + list3.length * 8;
  if (total == 0) {
    return { code: 0, data: null, msg: "已抽取所有头像" }
  }

  let totalCount = level1.length + level2.length + level3.length;
  // 计算
  let count = totalCount - (list1.length + list2.length + list3.length);
  // 阶梯消耗表：索引0对应消耗5，索引1对应消耗10，以此类推
  let filmConsumeTable = [5, 10, 25, 35, 55, 70, 100, 120];

  // 根据数量获取对应的消耗，数量超过7时取最后一个（120）
  let filmCost = filmConsumeTable[Math.min(count, 7)];

  film = Number(film) || 0;
  if (film < filmCost) {
    return { code: 0, data: { film: film, cost: filmCost }, msg: "代币不足,闯关获取更多代币！" }
  }
  // 检查通过后再扣除，余额始终以服务端数据为准。
  film -= filmCost;

  let num = Math.floor(Math.random() * total);
  let list = [];
  if (num < list1.length * 150) {
    list = list1;
  } else if (num < list1.length * 150 + list2.length * 50) {
    list = list2;
  } else {
    list = list3;
  }
  let num2 = Math.floor(Math.random() * list.length);
  if (list[num2] == 26) {
    for (let i = 0; i < level1.length; i++) {
      if (!headArr.includes(level1[i])) {
        headArr.push(level1[i]);
      }
    }
    for (let i = 0; i < level2.length; i++) {
      if (!headArr.includes(level2[i])) {
        headArr.push(level2[i]);
      }
    }
    for (let i = 0; i < level3.length; i++) {
      if (!headArr.includes(level3[i])) {
        headArr.push(level3[i]);
      }
    }
  } else {
    if (!headArr.includes(list[num2])) {
      headArr.push(list[num2]);
    }
  }
  await db.collection(dbname).where({ _id: uid }).update({ headArr: headArr, film: film });
  return { code: 1, data: { headArr: headArr, reward: list[num2], film: film }, msg: "成功" };
}