/* global __dirname */
"use strict";
var _             = require('lodash');
var Mustache      = require('mustache');
var path          = require('path');
var fs            = require('fs');
var indexTmplPath = path.normalize(__dirname + '/../html/index.mustache.html');
var indexTpml     = fs.readFileSync(indexTmplPath).toString();
var {
  readFilesAsync
}                 = require('../lib/fsio');

function readExampleFiles(repoSlug, exampleSlug, config) {
  const exampleDir = path.normalize(__dirname + '/../exemples/' + repoSlug + '/' + exampleSlug);
  const libsCssDir = path.normalize(__dirname + '/../css/vendor');
  const libsJsDir  = path.normalize(__dirname + '/../js/vendor');
  const { html, js, css } = config; // libsCss, libsJs 
  const files = [].concat(html, js, css);
  return readFilesAsync(exampleDir, files);
}


module.exports = function(exStore) {

  return {

    /**
     * Get bare index without repo or examples
     */
    getIndexBare: function(req, res) {
      const menuRepo = exStore.getRepoMenu();
      // const title    = 'Home';
      console.log(menuRepo);
      res.send(Mustache.render(indexTpml, {
        // title,
        menuRepo,
        filesJSON: '[]'
      }));
    },


    /**
     * Get index with repo selected only
     */
    getIndexRepo: function getIndexRepo(req, res) {
      const repo = exStore.getRepo(req.params.repoSlug);
      if(! repo) {
        return res.status(404).send('Repo ' + req.params.repoSlug + ' not found');
      }
      const menuRepo = exStore.getRepoMenu();
      const menuExample = exStore.getExampleMenu(repo.path);
      // const title    = 'Home';
      console.log(menuExample);
      res.send(Mustache.render(indexTpml, {
        // title,
        menuRepo,
        menuExample,
        filesJSON: '[]'
      }));
    },


    /**
     * Get index with selected repo&example
     */
    getIndexExample: function(req, res) {
      const repo = exStore.getRepo(req.params.repoSlug);
      if(! repo) {
        return res.status(404).send('Repo ' + req.params.repoSlug + ' not found');
      }
      const menuRepo = exStore.getRepoMenu();
      const menuExample = exStore.getExampleMenu(repo.path);
      const example = _.find(repo.examples, { slug: req.params.exampleSlug });
      if(! example) {
        return res.status(404).send('Example ' + req.params.repoSlug + '/' + req.params.exampleSlug + ' not found');
      }
      // const title    = 'Home';
      console.log(menuExample);
      const { repoSlug, exampleSlug } = req.params;
      readExampleFiles(repoSlug, exampleSlug, example)
      .then(files => {
        // console.log('example files', html, js, css);
        res.send(Mustache.render(indexTpml, {
          // title,
          menuRepo,
          menuExample,
          files,
          filesJSON: JSON.stringify(files)
        }));
      });
    }

  };

};