isv-page-json-to-xtpl/lib/air.js

abs 将页面 json 转换成 html

//air 的渲染逻辑
var depMap = require('./dep-map');
var request = require('sync-request');
var debug = require('debug')('air');
var _ = require('lodash');

module.exports = {
  depMap: depMap,
  /**
   * air 的参数处理
   * @param xtpl
   * @param data
   */
  params: function *(xtpl, data) {
    var postForm = {
      bu: 'taobao',
      page: {
        "$page": {
          title: data.title || '',
          spm: [data.spmA || '', data.spmB || ''],
          keywords: data.keywords || '',
          description: data.description || ''
        },
        "$data": {
          data: data.$data && data.$data.data || {},
          attrs: data.$data && data.$data.attrs || {}
         },
        "outputCharset": "utf8",
        "templates": { "index.xtpl": xtpl }
      }
    };
    var modules = data.layout && data.layout.modules || data.modules;
    if (modules && modules.length) {
      //模块依赖表
      postForm.page.seed = yield depMap(modules);
      postForm.page.seed.requireModsPre = true;
    }
    debug('airParams:\n', postForm);
    return postForm;
  },
  /**
   * 使用 air 渲染
   */
  render: function*(renderUrl,postForm) {
    debug('air url:',renderUrl);
    var result = request('POST', renderUrl, { json: postForm });
    var content = result.body.toString();
    debug(content);
    if (result.statusCode === 200) {
      return { success: true, content: content };
    } else {
      return { success: false, content: content };
    }
  },
  /**
   * 拼装 air 注入模块 assets 依赖的 require 语法
   * @param modules
   * @param delCss
   */
  requireCommand: function(modules,delCss){
    //确定页面需要引入的入口文件
    var requires = [];
    _.forEach(modules, function (mod) {
      var group = mod.group && (mod.group + '/') || '';
      var version = mod.version && ('/' + mod.version) || '';
      var modPath = group + mod.name + version;
      var modNameJs = modPath + '/index';
      if (_.indexOf(requires, modNameJs) === -1) {
        requires.push(modNameJs);
      }
      if(!delCss){
        var modNameCss = modPath + '/index.css';
        if (_.indexOf(requires, modNameCss) === -1) {
          requires.push(modNameCss);
        }
      }
    });
    debug('air require command param:',requires);
    //air 需要combo处理的入口文件
    var command = requires.length && "{{require('" + requires.join(',') + "')}}" || '';
    return command;
  }
};