import { ZError } from "common/ZError";
import BaseController, { ROLE_ANON } from "common/base.controller";
import { role, router } from "decorators/router";
import { ActivityInfo } from "models/ActivityInfo";
import { ActivityUser } from "models/ActivityUser";
import { RedisClient } from "redis/RedisClient";

const MAX_LIMIT = 50
export default class ActivityController extends BaseController {
  
  @role(ROLE_ANON)
  @router('get /api/activity/:id')
  async info(req) {
    let { id } = req.params
    if (!id) {
      throw new ZError(11, 'invalid activity id')
    }
    let activity = await ActivityInfo.findById(id)
    if (!activity) {
      throw new ZError(12, 'activity not found')
    }
    return activity.toJson()
  }

  /**
   * 更新邀请码
   * @param req 
   * @returns 
   */
  @router('post /api/activity/upload_invite_code')
  async uploadInviteCode(req) {
    let { code } = req.params
    let user = req.user;
    if (user.inviteUser) {
      throw new ZError(11, 'already set invite user')
    }
    let inviteUser = await ActivityUser.findByCode(code, user.activity)
    if (!inviteUser) {
      throw new ZError(12, 'invalid invite code')
    }
    user.inviteUser = inviteUser.id
    await user.save()
    return {}
  }

  @role(ROLE_ANON)
  @router('get /api/activity/leaderboard/:activity/:page')
  async inviteCode(req) {
    let user = req.user;
    let { page, activity, limit } = req.params
    page = parseInt(page || '0')
    limit = parseInt(limit || MAX_LIMIT)
    if (page < 0) {
      page = 0
    }
    const start = page * limit
    const end = start + limit - 1
    let records = await new RedisClient().zrevrange(`${activity}:score`, start, end)
    let results: any = []
    for (let i = 0; i < records.length; i+=2) {
      let id = records[i]
      let score = parseInt(records[i + 1])
      let user = await ActivityUser.findById(id)
      results.push({
        rank: start + i / 2 + 1,
        address: user.address,
        score
      })
    }
    return results;
  }  
}