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


// One-liner for current directory, ignores .dotfiles
chokidar.watch('./html', {ignored: /(^|[\/\\])\../}).on('all', (event, path) => {
  // console.log(event, path);
  if(path === 'html/index.mustache.html') {
    console.log('reload index html');
    indexTpml = fs.readFileSync(indexTmplPath).toString();
  }
});


module.exports = function(exStore, exDir) {

  function readExampleFiles(repoSlug, exampleSlug, config) {
    const exampleDir = exDir + '/' + 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);
          // console.log('#2', exampleDir, html, js, css, files);
    return readFilesAsync(exampleDir, files);
    // .then(files => {
    //   console.log('#### files', files);
    //   return files;
    // });
  }



  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) {
      console.log('getIndexExample', req.params);
      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');
      }
      // console.log('#1');
      // const title    = 'Home';
      // console.log(menuExample);
      const { repoSlug, exampleSlug } = req.params;
      readExampleFiles(repoSlug, exampleSlug, example)
      .then(files => {
        console.log('example files', files);
        res.send(Mustache.render(indexTpml, {
          // title,
          menuRepo,
          menuExample,
          files,
          filesJSON: JSON.stringify(files)
        }));
      });
    }

  };

};