var bus = new Vue();

// COMPONENTS //

Vue.component('results-list', {
  template: '#results-list-template',
  props: ['results', 'count', 'type'],
  methods: {
    url: function(item) {
      return '/'+this.type+'/'+item.id;
    },
    label: function(item) {
      switch (this.type) {
        case 'books':
          return item.title;
        case 'authors':
        case 'series':
          return item.name;
        default:
          return '';
      }
    },
    iconClass: function() {
      return 'glyphicon glyphicon-' + this.icon();
    },
    icon: function() {
      switch (this.type) {
        case 'books':
          return 'icon';
        case 'authors':
          return 'user';
        case 'series':
          return 'list';
        default:
          return '';
      }
    },
    countlabel: function() {
      switch (this.type) {
        case 'books':
          return this.count > 1 ? 'livres' : 'livre';
        case 'authors':
          return this.count > 1 ? 'auteurs' : 'auteur';
        case 'series':
          return this.count > 1 ? 'series' : 'serie';
        default:
          return '';
      }
    }
  }
});
Vue.component('results', {
  template: '#results-template',
  props: ['results', 'cols','sort_by','order_desc'],
  methods: {
    sortBy: function(col) {
      bus.$emit('sort-on', col);
    }
  }
});
Vue.component('result-cell', {
  render: function(h) {
    return h('td', this.cellContent(h));
  },
  props: ['item', 'col'],
  methods: {
    bookUrl: function(id) {
      return '/books/' + id;
    },
    authorUrl: function(id) {
      return '/authors/' + id;
    },
    seriesUrl: function(id) {
      return '/series/' + id;
    },
    link: function(h, icon, text, url) {
      return [
        h('span',{ attrs: { class: 'glyphicon glyphicon-'+icon } },''),
        ' ',
        h('a', { attrs: { href: url } }, text)
      ];
    },
    badge: function(h, num) {
      return h('span', { attrs: { class: 'badge' } }, num);
    },
    cellContent: function(h) {
      switch (this.col.id) {
      case 'author_name':
        return this.link(h, 'user', this.item.name, this.authorUrl(this.item.id));
      case 'serie_name':
        return this.link(h, 'list', this.item.name, this.authorUrl(this.item.id));
      case 'count':
        return this.item.count;
      case 'title':
        return this.link(h, 'book', this.item.title, this.bookUrl(this.item.id));
      case 'authors':
        var elts = [];
        var authors = this.item.authors;
        if (authors) {
          for (i=0;i<authors.length;i++) {
            elts[i] = this.link(h, 'user', authors[i].name, this.authorUrl(authors[i].id));
          }
        }
        return elts;
      case 'series':
        var series = this.item.series;
        if (series) {
          return [
            this.link(h, 'list', series.name, this.seriesUrl(series.id)),
            h('span', { attrs: { class: 'badge' } }, this.item.series_idx)
          ];
        }
        return '';
      default:
        console.log('ERROR unknown col: ' + this.col.id)
        return '';
      }
    }
  }
});
Vue.component('paginate', {
  template: '#paginate-template',
  props: ['page','more'],
  methods: {
    prevPage: function() {
      if (this.page > 1) bus.$emit('update-page', -1);
    },
    nextPage: function() {
      if (this.more) bus.$emit('update-page', 1);
    }
  }
});

// PAGES //

if (document.getElementById("index")) {
  new Vue({
    el: '#index',
    data: {
      url: '',
      page: 0,
      perpage: 20,
      more: false,
      sort_by: null,
      order_desc: false,
      cols: [],
      results: []
    },
    methods: {
      sortBy: function(col) {
        if (this.sort_by == col) {
          if (this.order_desc) {
            this.order_desc = false;
            this.sort_by = null;
          } else {
            this.order_desc = true;
          }
        } else {
          this.order_desc = false;
          this.sort_by = col;
        }
        this.updateResults();
      },
      updatePage: function(p) {
        this.page += p;
        this.updateResults();
      },
      order: function(query) {
        if (this.order_desc)
          return query + '&order=desc';
        return query;
      },
      sort: function(query) {
        if (this.sort_by)
          return query + '&sort=' + this.sort_by;
        return query;
      },
      paginate: function(query) {
        return query + '?page=' + this.page + '&perpage=' + this.perpage;
      },
      params: function(url) {
        return this.order(this.sort(this.paginate(url)));
      },
      updateResults: function() {
        this.sendQuery(this.params(this.url), this.stdError, this.loadResults);
      },
      showSeries: function() {
        this.url = '/series/';
        this.updateResults();
      },
      showAuthors: function() {
        this.url = '/authors/';
        this.updateResults();
      },
      showBooks: function() {
        this.url = '/books/';
        this.updateResults();
      },
      loadCols: function(type) {
        switch (type) {
        case 'books':
          this.cols = [
            { id: 'title',   name: 'Titre', sort: 'title' },
            { id: 'authors', name: 'Auteur(s)' },
            { id: 'series',  name: 'Serie' }
          ];
        break;
        case 'series':
          this.cols = [
            { id: 'serie_name', name: 'Nom', sort: 'name' },
            { id: 'count',      name: 'Livre(s)' },
            { id: 'authors',    name: 'Auteur(s)' }
          ];
        break;
        case 'authors':
          this.cols = [
            { id: 'author_name', name: 'Nom', sort: 'name' },
            { id: 'count',       name: 'Livre(s)' }
          ];
        break;
        }
      },
      loadResults(resp) {
        this.results = [];
        this.more = resp.more;
        this.loadCols(resp.type);
        if (resp.results) {
          this.results = resp.results;
          if (this.page == 0) this.page = 1;
        } else {
          this.page = 0;
        }
      },
      sendQuery: function(url, error, success) {
        var xmh = new XMLHttpRequest();
        var v;
        xmh.onreadystatechange = function() {
          v = xmh.responseText;
          if (xmh.readyState === 4 && xmh.status === 200) {
            var res;
            try  {
              res = JSON.parse(v);
            } catch (err) {
              if (null !== error)
                error(err.name, err.message);
            }
            if (null !== success)
              success(res);
          } else if (xmh.readyState === 4) {
            if (null !== error)
              error(xmh.status, v);
          }
        };
        xmh.open('GET', url, true);
        xmh.setRequestHeader('Accept','application/json');
        xmh.send(null);
      },
      stdError: function(code, resp) {
        console.log('ERROR ' + code + ': ' + resp);
      }
    },
    mounted: function() {
      bus.$on('sort-on', this.sortBy);
      bus.$on('update-page', this.updatePage);
    }
  });
}
if (document.getElementById("author")) {
  new Vue({
    el: '#author',
    data: {
      tab: "books"
    },
    methods: {
      showBooks: function() {
        this.tab = "books";
      },
      showAuthors: function() {
        this.tab = "authors";
      },
      showSeries: function() {
        this.tab = "series";
      }
    }
  });
}

if (document.getElementById("search")) {
  new Vue({
    el: '#search',
    data: {
      authors: [],
      books: [],
      series: [],
      authorsCount: 0,
      booksCount: 0,
      seriesCount: 0,
      q: '',
      which: 'all',
      all: false,
      perpage: 10
    },
    methods: {
      searchParams: function(url) {
        var res = url;
        res += '?perpage=' + this.perpage;
        for (var i=0; i<this.terms.length; i++) {
          var t = this.terms[i];
          if (t.trim())
            res += '&term=' + encodeURIComponent(t.trim());
        }
        return res;
      },
      searchAuthorsSuccess: function(res) {
        this.authorsCount = res.count;
        this.authors = res.results;
      },
      searchAuthors: function() {
        this.sendQuery(this.searchParams('/authors/'), this.stdError, this.searchAuthorsSuccess);
      },
      searchBooksSuccess: function(res) {
        this.booksCount = res.count;
        this.books = res.results;
      },
      searchBooks: function() {
        this.sendQuery(this.searchParams('/books/'), this.stdError, this.searchBooksSuccess);
      },
      searchSeriesSuccess: function(res) {
        this.seriesCount = res.count;
        this.series = res.results;
      },
      searchSeries: function() {
        this.sendQuery(this.searchParams('/series/'), this.stdError, this.searchSeriesSuccess);
      },
      searchAll: function() {
        this.clear();
        this.searchAuthors();
        this.searchBooks();
        this.searchSeries();
      },
      clear: function() {
        this.authors = [];
        this.books = [];
        this.series = [];
        this.authorsCount = 0;
        this.booksCount = 0;
        this.seriesCount = 0;
      },
      searchFull: function() {
        if (this.q) {
          this.terms = this.q.split(' ');
          switch (this.which) {
            case 'all':
              this.searchAll();
              break;
            case 'authors':
              this.clear();
              this.searchAuthors();
              break;
            case 'books':
              this.clear();
              this.searchBooks();
              break;
            case 'series':
              this.clear();
              this.searchSeries();
              break;
          }
        }
        return false;
      },
      searchUrl: function() {
        if (this.urlParams.q) {
          this.terms = this.urlParams.q.split(' ');
          this.searchAll();
          this.q = this.urlParams.q;
        }
      },
      sendQuery: function(url, error, success) {
        var xmh = new XMLHttpRequest();
        var v;
        xmh.onreadystatechange = function() {
          v = xmh.responseText;
          if (xmh.readyState === 4 && xmh.status === 200) {
            var res;
            try  { 
              res = JSON.parse(v);
            } catch (err) {
              if (null !== error)
                error(err.name, err.message);
            }
            if (null !== success)
              success(res);
          } else if (xmh.readyState === 4) {
            if (null !== error)
              error(xmh.status, v);
          }
        };
        xmh.open('GET', url, true);
        xmh.setRequestHeader('Accept','application/json');
        xmh.send(null);
      },
      stdError: function(code, resp) {
        console.log('ERROR ' + code + ': ' + resp);
      }
    }
  });
}