/**
 * https://github.com/jinke18/educoder_weapp
 * @licence GPL-3.0
 * @author jinke18
 */

import {Account, Course, Exercise, Question, School, Ui} from "./eduapi"
import {Session} from "./requests";
import {Cookie} from "./cookie";

/**
 * 客户端类，其method实现客户端各种操作，将接口Promise化，
 * 要在此处实现网络数据及cookie的缓存
 */

export class Client{
    constructor({session}={}){
        if(!session) {
            this.session = new Session();
        }else {
          this.session = session;
      }
      this.load_cached_cookies();
      this.current_user = {};
      this.callback={require_login: ()=>{}};
      this.load_current_user();
    }
    load_current_user(){
        var value = wx.getStorageSync('current_user');
        if(value) {
            this.current_user = value;
            console.log("read current_user from storage");
            console.log(this.current_user);
        }
    }
    save_current_user(){
        console.log("save current user to storage");
        console.log(this.current_user);
        wx.setStorageSync("current_user", this.current_user);
    }
    clear_current_user(){
        wx.setStorageSync("current_user", {});
    }
    load_cached_cookies(){
        try {
            var value = wx.getStorageSync('_educoder_session');
            if (value) {
                this.session.set_cookie(new Cookie(value))
            }
            var value = wx.getStorageSync("autologin_trustie");
            if (value) {
                this.session.set_cookie(new Cookie(value));
            }
            console.log("read cookies from wx.Storage:");
            console.log(this.session.cookies);
        } catch (e) {
            // Do something when catch error
            console.error("there is not cached cookie")
            console.error(e);
        }
    }
    save_cookies(){
        for(var cookie of Object.values(this.session.cookies)){
            console.log("client save new cookie");
            console.log(cookie);
            cookie.save();
        }

    }
    onRequireLogin(cd){
      this.callback.require_login = cd;
    }
    require_login(){
        wx.redirectTo({
            url: "../pages/login/login"
        });
        wx.showToast({
            title:"请先登陆",
            icon: "none",
            duration: 4000
        });
    }

    login({login, password, autologin, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Account.login({
                session: this.session, login: login, password: password, autologin: autologin,
                fail: error => {
                    if(typeof fail == "function") {
                        fail(error);
                    }
                    reject(error);
                },
                complete: complete,
                success: res => {
                    this.save_cookies();
                    this.current_user = {...this.current_user, ...res.data};
                    console.log("current_user info update");
                    console.log(this.current_user);
                    this.get_user_info();
                    if (typeof success == "function") {
                        success(res);
                    }
                    resolve(res);
                }
            });
        });
    }
    logout({success, fail, complete}={}){
        return new Promise((resolve, reject) => {
            Account.logout({session: this.session,
                success: res=>{
                    if(typeof success == "function") {
                        success(res);
                    }
                    this.get_user_info();
                    resolve(res);
                }, fail: error=>{
                    if(typeof fail =="function"){
                        fail(error);
                    }
                    reject(error);
                }, complete: complete});
        })
    }
    register({login, password, code, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Account.register({session: this.session, login:login, password:password, code:code,
                complete:complete,
                success: res=>{
                    this.save_cookies();
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail:error=>{
                    if(typeof  fail == "function") {
                        fail(error);
                    }
                    reject(error)
                }
            });
        });
    }
    reset_password({login, code, new_password, new_password_confirmation, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Account.reset_password({
                session: this.session,
                login: login,
                code: code,
                new_password: new_password,
                new_password_confirmation: new_password_confirmation,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        })
    }
    attendance({success, fail, complete}={}){
      return new Promise((resolve, reject)=>{
        Account.attendance({
          session: this.session,
          complete: complete,
          success: res => {
            if (typeof success == "function") {
              success(res);
            }
            resolve(res);
          },
          fail: error => {
            if (typeof fail == "function") {
              fail(error);
            }
            reject(error);
          }})
      });
    }
    get_user_info({success, fail, complete}={}){
        return new Promise((resolve, reject) => {
            Account.get_user_info({session: this.session, complete: complete,
                success: res=>{
                    this.current_user = {...this.current_user, ...res.data};
                    console.log("current_user info update");
                    console.log(this.current_user);
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                    this.save_current_user();
                    this.save_user_info()
                },
                fail: error=>{
                    this.callback.require_login();
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        });
    }
    save_user_info(){
      const app = getApp();
      const db = wx.cloud.database();
      if(!app.globalData.openid || !this.current_user.login){
        console.warn("save user info", "undifined data", app.globalData.openid, this.current_user.login)
        return;
      }
      console.log("saving user info")
      return db.collection("user").doc(this.current_user.login + "_" + app.globalData.openid).set({
        data: {
          user_info: this.current_user,
          updatedAt: new Date(),
          cookies: this.session.cookies
        }
      }).then(res => {
        console.log("save user success", res);
      }).catch(console.error);
    }
    get_verification_code_for_register({login, success, fail, complete}){
      return new Promise((resolve, reject) => {
        Account.get_verification_code({
          session: this.session, login: login, type: 1,
          complete: complete,
          success: res => {
            if (typeof success == "function") {
              success(res);
            }
            resolve(res);
          },
          fail: error => {
            if (typeof fail == "function") {
              fail(error);
            }
            reject(error);
          }
        });
      })
           
    }
    get_verification_code_for_reset_password({login, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Account.get_verification_code({
                session: this.session, login: login, type: 2,
                complete: complete,
                success: res => {
                    if (typeof success == "function") {
                        success(res);
                    }
                    resolve(res);
                },
                fail: error => {
                    if (typeof fail == "function") {
                        fail(error);
                    }
                    reject(error);
                }
            });
        })
    }
    upload_avatar({avatar_path, success, fail, complete}){
        console.log("upload_avatar");
        console.log(this.current_user);
        return new Promise((resolve, reject) => {
            Account.upload_avatar({
                session: this.session,
                avatar_path: avatar_path,
                login: this.current_user.login||this.current_user.user_id,
                complete: complete,
                success: res => {
                    if (typeof success == "function") {
                        success(res);
                    }
                    resolve(res);
                },
                fail: error => {
                    if (typeof fail == "function") {
                        fail(error);
                    }
                    reject(error);
                }
            })
        });
    }

    search_courses({limit=20, page=1, order="all", search="", success, fail, complete}={}){
        return new Promise((resolve, reject) => {
            Course.search({session: this.session, page: page, order: order, search: search, complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            });
        });
    }
    get_course_info({course_id, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Course.get_course_info({
                session: this.session,
                course_id: course_id,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        });

    }
    get_user_courses({category="",status="",sort_by="",sort_direction="",page=1, per_page=16, success, fail, complete}={}){
        return new Promise((resolve, reject) => {
            Account.get_user_courses({
                session: this.session,
                category: category,
                status: status,
                sort_by: sort_by,
                sort_direction: sort_direction,
                page: page,
                per_page: per_page,
                login: this.current_user.login,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            });
        });
    }
    create_course({data, success, fail, complete}){
      return new Promise((resolve,reject)=>{
        Course.create({
          session: this.session,
          data: data,
          complete: complete,
          success: res => {
            if (typeof success == "function") {
              success(res);
            }
            resolve(res);
          },
          fail: error => {
            if (typeof fail == "function") {
              fail(error);
            }
            reject(error);
          }
        })
      });
    }
    join_course({invite_code, professor=null,assistant_professor=null,student=null, success, fail, complete}){
        return new Promise((resolve, reject)=>{
            Course.join({session: this.session, invite_code: invite_code, professor: professor, assistant_professor: assistant_professor, student: student, complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        });
    }
    get_course_files({course_id, page_size=15, page=1,search="",sort=0, sort_type="created_on", success, fail, complete}){
        return new Promise((resolve, reject) => {
            Course.get_files({
                session: this.session,course_id:course_id, page_size: page_size, page:page, search: search, sort: sort, sort_type: sort_type, complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    };
                    resolve(res);
                },
                fail: error=>{
                    if(typeof success == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            });
        });
    }
    get_course_students({course_id, order=1,sort="asc",page=1, limit=20, course_group_id="", success, fail, complete}){
        return new Promise((resolve, reject) => {
           Course.get_students({
                session: this.session,
                course_id: course_id,
                order: order,
                sort: sort,
                page: page,
                limit: limit,
                course_group_id: course_group_id,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    };
                    resolve(res);
                },
                fail: error=>{
                    if(typeof success == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        })
    }
    search_exercises({course_id, type="", page=1, limit=15, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Exercise.search({
                session: this.session,
                course_id: course_id,
                type: type,
                page: page,
                limit: limit,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    };
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        });
    }
    start_answer_exercise({exercise_id, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Exercise.start_answer({
                session: this.session,
                exercise_id: exercise_id,
                login: this.current_user.login,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    };
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        });
    }
    answer_question({question_id, exercise_choice_id,answer_text ,success, fail, complete}){
        return new Promise((resolve, reject) =>{
            Question.answer({
                session: this.session,
                question_id: question_id,
                answer_text: answer_text,
                exercise_choice_id: exercise_choice_id,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    };
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        } );
    }
    create_question({exercise_id, data,success, fail, complete}){
        return new Promise((resolve, reject) => {
            Question.create({
                session: this.session,
                exercise_id,
                data,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            });
        });
    }
    update_question({question_id, data, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Question.update({
                session: this.session,
                question_id,
                data,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            });
        });
    }
    create_exercise({course_id ,exercise_name, exercise_description, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Exercise.create({
                session: this.session,
                course_id,
                exercise_name,
                exercise_description,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            });
        });
    }
    update_exercise({exercise_id, exercise_name, exercise_description, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Exercise.update({
                session: this.session,
                exercise_id,
                exercise_name,
                exercise_description,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        })
    }
    get_exercise_edit({exercise_id,  success, fail, complete}){
        return new Promise((resolve, reject) => {
            Exercise.get_edit({
                session: this.session,
                exercise_id,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        });
    }
    publish_exercise({course_id, exercise_ids, end_time, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Exercise.publish({
                session: this.session,
                course_id,
                exercise_ids,
                end_time,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    }
                    resolve(res);
                },
                fail: error=>{
                    if(typeof fail == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        })
    }
    /**
     * @todo change limit default 10
     */
  get_exercise_result({ exercise_id, sort = "asc", page = 1, limit=50, success, fail, complete}){
    return new Promise((resolve, reject)=>{
      Exercise.get_result({
        session: this.session,
        exercise_id, sort, page, limit,
        success: res => {
          if (typeof success == "function") {
            success(res);
          }
          resolve(res);
        },
        fail: error => {
          if (typeof fail == "function") {
            fail(error);
          }
          reject(error);
        }
      })
    })
  }
    get_exercise_grade({exercise_id,order="end_at", search="", success, fail, complete}){
        return new Promise((resolve, reject) => {
            Exercise.get_grade({
                session: this.session,
                exercise_id,
                order,
                search,
                complete: complete,
                success: res => {
                    if (typeof success == "function") {
                        success(res);
                    }
                    resolve(res);
                },
                fail: error => {
                    if (typeof fail == "function") {
                        fail(error);
                    }
                    reject(error);
                }
            });
        });
    }
    save_exercise({exercise_id, success, fail, complete}){
        return new Promise((resolve, reject) => {
            Exercise.save({
                session: this.session,
                exercise_id: exercise_id,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    };
                    resolve(res);
                },
                fail: error=>{
                    if(typeof success == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        });
    }
    commit_exercise({exercise_id, commit_method=1, success, fail , complete}){
        return new Promise((resolve, reject) => {
            Exercise.commit({
                session: this.session,
                exercise_id: exercise_id,
                commit_method: commit_method,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    };
                    resolve(res);
                },
                fail: error=>{
                    if(typeof success == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        });
    }
    search_schools({search = "", success, fail, complete} = {}){
        return new Promise((resolve, reject) => {
            School.search({
                session: this.session,  search: search, complete: complete,
                success: res => {
                    if (typeof success == "function") {
                        success(res);
                    }
                    resolve(res);
                },
                fail: error => {
                    if (typeof fail == "function") {
                        fail(error);
                    }
                    reject(error);
                }
            });
        });
    }
    get_home_page({success, fail, complete}={}){
        return new Promise((resolve, reject) => {
            Ui.get_home_page({
                session: this.session,
                complete: complete,
                success: res=>{
                    if(typeof success == "function"){
                        success(res);
                    };
                    resolve(res);
                },
                fail: error=>{
                    if(typeof success == "function"){
                        fail(error);
                    }
                    reject(error);
                }
            })
        })
    }
}