'use strict';
angular.module('myApp.post', ['ngRoute'])

.config(['$routeProvider', function($routeProvider) {
  $routeProvider.when('/post', {
    templateUrl: 'views/post/post.html',
    controller: 'PostCtrl as Post'
  });
}])

.controller('PostCtrl'
  , ['$scope', '$location', '$timeout', 'Desirae'
  , function ($scope, $location, $timeout, Desirae) {
  var scope = this
    ;

  function init() {
    Desirae.meta().then(function (desi) {
      scope.blogdir = desi.blogdir.path.replace(/^\/(Users|home)\/[^\/]+\//, '~/');
      scope.site = desi.site;
      newPost();

      updateDate();
    }).catch(function (e) {
      window.alert("An Error Occured. Most errors that occur in the init phase are parse errors in the config files or permissions errors on files or directories, but check the error console for details.");
      console.error(e);
      throw e;
    });

    scope.extensions = ['md', 'html'];
  }

  function newPost() {
    scope.selected = {
      format: 'md'
    , permalink: "/article/new.html"
    , uuid: window.uuid.v4()
    , abspath: scope.blogdir
    , post: { 
        yml: {
          title: ""
        , permalink: "/article/new.html"
        , date: Desirae.toDesiDate(new Date())// "YYYY-MM-DD HH:MM pm" // TODO desirae
        , updated: null
        , description: ""
        , categories: []
        , tags: []
        , theme: null
        , layout: null
        , swatch: null
        }
      }
    };
    scope.selected.date = scope.selected.post.yml.date;
    scope.selected.post.frontmatter = window.jsyaml.dump(scope.selected.post.yml).trim();
  }

  scope.onChange = function () {
    var post = scope.selected.post
      , selected = scope.selected
      ;

    post.yml.title = post.yml.title || '';
    post.yml.description = post.yml.description || '';

    if (selected.permalink === post.yml.permalink) {
      selected.permalink = '/articles/' + post.yml.title.toLowerCase()
        .replace(/["']/g, '')
        .replace(/\W/g, '-')
        .replace(/^-+/g, '')
        .replace(/-+$/g, '')
        .replace(/--/g, '-')
        + '/' // + '.html' //+ selected.format
        ;

      post.yml.permalink = selected.permalink;
    }
    /*
    if (window.path.extname(post.yml.permalink) !== '.' + selected.format) {
     post.yml.permalink = post.yml.permalink.replace(/\.\w+$/, '.' + selected.format);
    }
    */

    post.frontmatter = window.jsyaml.dump(post.yml).trim();

    // TODO use some sort of filepath pattern in config.yml
    selected.path = window.path.join((selected.collection || 'posts'), window.path.basename(post.yml.permalink));
    if (!/\.html?$/.test(selected.path)) {
      selected.path = window.path.join(selected.path, 'index.html');
    }

    selected.url = window.path.join(scope.site.base_url + window.path.join(scope.site.base_path, post.yml.permalink));
    selected.abspath = window.path.join(scope.blogdir, selected.path);
  };
  scope.onFrontmatterChange = function () {
    var data
      , post
      ;

    try {
      if (!scope.selected.post.frontmatter || !scope.selected.post.frontmatter.trim()) {
        throw new Error('deleted frontmatter');
      }
      data = window.jsyaml.load(scope.selected.post.frontmatter);
      //scope.selected.format = data.permalink.replace(/.*\.(\w+$)/, '$1');
      if (!data.permalink) {
        data = scope.selected.permalink;
      }
      scope.selected.post.yml = data;

      post = scope.selected.post;

      scope.selected.path = window.path.join((scope.selected.collection || 'posts'), window.path.basename(post.yml.permalink));
      if (!/\.html?$/.test(window.path.basename(post.yml.permalink))) {
        scope.selected.path = window.path.join(scope.selected.path.replace(/\.w+$/, ''), 'index.html');
      }
      scope.selected.url = window.path.join(scope.site.base_url + window.path.join(scope.site.base_path, post.yml.permalink));
      scope.selected.abspath = window.path.join(scope.blogdir, scope.selected.path);
    } catch(e) {
      console.error(e);
      console.error('ignoring update that created parse error');
      scope.selected.post.frontmatter = window.jsyaml.dump(scope.selected.post.yml).trim();
    }
  };

  function updateDate() {
    $timeout.cancel(scope.dtlock);
    scope.dtlock = $timeout(function () {
      if (scope.selected && scope.selected.date === scope.selected.post.yml.date) {
        scope.selected.date = scope.selected.post.yml.date = Desirae.toDesiDate(new Date());
      }
      scope.onChange();
      updateDate();
    }, 60 * 1000);
  }

  scope.upsert = function () {
    if (-1 === scope.extensions.indexOf(scope.selected.format)) {
      window.alert('.' + scope.selected.format + ' is not a supported extension.\n\nPlease choose from: .' + scope.extensions.join(' .'));
      return;
    }

    scope.selected.post.yml.uuid = scope.selected.uuid;
    ['updated', 'theme', 'layout', 'swatch'].forEach(function (key) {
      if (!scope.selected.post.yml[key]) {
        delete scope.selected.post.yml[key];
      }
    });
    scope.onChange();

    var files = []
      ;

    files.push({
      path: scope.selected.path
    , contents: 
          '---\n'
        + scope.selected.post.frontmatter.trim()
        + '\n'
        + '---\n'
        + '\n'
        + scope.selected.post.body.trim()
    });

    Desirae.putFiles(files).then(function (results) {
      console.log('TODO check for error');
      console.log(files);
      console.log(results);
      $location.path('/build');
    }).catch(function (e) {
      $timeout.cancel(scope.dtlock);
      console.error(scope.site);
      console.error(e);
      window.alert("Error Nation! :/");
      throw e;
    });
  };

  init();
}]);