const controller = require('./controller');
const advModel = require('./advMockModel.js');
const caseModel = require('./caseModel.js');
const yapi = require('yapi.js');
const mongoose = require('mongoose');
const _ = require('underscore');
const path = require('path');
const lib = require(path.resolve(yapi.WEBROOT, 'common/lib.js' ));
const Mock = require('mockjs');

function arrToObj(arr){
  let obj = {'Set-Cookie': []};
  arr.forEach(item=>{
    if(item.name === 'Set-Cookie'){
      obj['Set-Cookie'].push(item.value);
    }else obj[item.name] = item.value;
  })
  return obj;
}

module.exports = function(){
  yapi.connect.then(function () {
    let Col = mongoose.connection.db.collection('adv_mock');
    Col.createIndex({
        interface_id: 1        
    })
    Col.createIndex({
      project_id: 1
    })

    let caseCol = mongoose.connection.db.collection('adv_mock_case');
    caseCol.createIndex({
        interface_id: 1        
    })
    caseCol.createIndex({
      project_id: 1
    })
  })

  async  function checkCase(ctx, interfaceId){
    let reqParams = Object.assign({}, ctx.query, ctx.request.body);
    let caseInst = yapi.getInst(caseModel);
    let ip = ctx.ip.match(/\d+.\d+.\d+.\d+/)[0];
    //   数据库信息查询
    let listWithIp =await caseInst.model.find({
      interface_id: interfaceId,
      ip_enable: true,
      ip: ip
    }).select('_id params');
    let matchList = [];
    listWithIp.forEach(item=>{
      let params = item.params;
      if(lib.isDeepMatch(reqParams, params)){
        matchList.push(item); 
      }
    })    
    if(matchList.length === 0){
      let list =await caseInst.model.find({
        interface_id: interfaceId,
        ip_enable: false
      }).select('_id params')
      list.forEach(item=>{
        let params = item.params;
        if(lib.isDeepMatch(reqParams, item.params)){
          matchList.push(item); 
        }
      })
    }
    if(matchList.length > 0){
      let maxItem = _.max(matchList, item=> (item.params &&  Object.keys(item.params).length || 0 ));
      return maxItem;
    }
    return null;

  }
  
  async function handleByCase(caseData, context){
    let caseInst = yapi.getInst(caseModel);
    let result = await caseInst.get({
      _id: caseData._id
    })
    return result;
  }


  this.bindHook('add_router', function(addRouter){
    addRouter({
      controller: controller,
      method: 'get',
      path: 'advmock/get',
      action: 'getMock'
    })
    addRouter({
      controller: controller,
      method: 'post',
      path: 'advmock/save',
      action: 'upMock'
    })
    addRouter({
      /**
       * 保存期望
       */
      controller: controller,
      method: 'post',
      path: 'advmock/case/save',
      action: 'saveCase'
    })

    addRouter({
      /**
       *
       */
      controller: controller,
      method: 'get',
      path: 'advmock/case/get',
      action: 'getCase'
    })

    addRouter({
      /**
       * 获取期望列表
       */
      controller: controller,
      method: 'get',
      path: 'advmock/case/list',
      action: 'list'
    })

    addRouter({
      /**
       * 删除期望列表
       */
      controller: controller,
      method: 'post',
      path: 'advmock/case/del',
      action: 'delCase'
    })
  })
  this.bindHook('interface_del', async function(id){
    let inst = yapi.getInst(advModel);
    await inst.delByInterfaceId(id);
  })
  this.bindHook('project_del', async function(id){
    let inst = yapi.getInst(advModel);
    await inst.delByProjectId(id);
  })
  /**
   * let context = {
      projectData: project,
      interfaceData: interfaceData,
      ctx: ctx,
      mockJson: res 
    } 
   */
  this.bindHook('mock_after', async function(context){
    let interfaceId = context.interfaceData._id;
    let caseData = await checkCase(context.ctx, interfaceId);
    if(caseData){
      let data = await  handleByCase(caseData, context);
      context.mockJson = yapi.commons.json_parse(data.res_body);
      context.resHeader = arrToObj(data.headers);
      context.httpCode = data.code;
      context.delay = data.delay;
      return true;
    }
    let inst = yapi.getInst(advModel);
    let data = await inst.get(interfaceId);
    if(!data || !data.enable || !data.mock_script){
      return context;
    }
    let script = data.mock_script;
    let sandbox = {
      header: context.ctx.header,
      query: context.ctx.query,
      body: context.ctx.request.body,
      mockJson: context.mockJson,
      params: Object.assign({}, context.ctx.query, context.ctx.request.body),
      resHeader: context.resHeader,
      httpCode: context.httpCode,
      delay: context.httpCode,
      Random: Mock.Random
    }
    sandbox.cookie = {};
    
    context.ctx.header.cookie && context.ctx.header.cookie.split(';').forEach(function( Cookie ) {
        var parts = Cookie.split('=');
        sandbox.cookie[ parts[ 0 ].trim() ] = ( parts[ 1 ] || '' ).trim();
    });
    sandbox = yapi.commons.sandbox(sandbox, script);
    sandbox.delay = isNaN(sandbox.delay) ? 0 : +sandbox.delay;
    
    context.mockJson = sandbox.mockJson;
    context.resHeader = sandbox.resHeader;
    context.httpCode = sandbox.httpCode;
    context.delay = sandbox.delay;
  })
}