Cookie = {
  put: function(name, value, days) {
    if (days == null) {
      days = 365;
    }

    var date = new Date();
    date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
    var expires = "; expires=" + date.toGMTString();
    document.cookie = name + "=" + encodeURIComponent(value) + expires + "; path=/";
  },

  raw_get: function(name) {
    var nameEq = name + "=";
    var ca = document.cookie.split(";");

    for (var i = 0; i < ca.length; ++i) {
      var c = ca[i];

      while (c.charAt(0) == " ") {
        c = c.substring(1, c.length);
      }

      if (c.indexOf(nameEq) == 0) {
        return c.substring(nameEq.length, c.length);
      }
    }

    return "";
  },
  
  get: function(name) {
    return this.unescape(this.raw_get(name));
  },
  
  remove: function(name) {
    Cookie.put(name, "", -1);
  },

  unescape: function(val) {
    return decodeURIComponent(val.replace(/\+/g, " "));
  },

  setup: function() {
    if (location.href.match(/^\/(comment|pool|note|post)/) && this.get("tos") != "1") {
      // Setting location.pathname in Safari doesn't work, so manually extract the domain.
      var domain = location.href.match(/^(http:\/\/[^\/]+)/)[0];
      location.href = domain + "/static/terms_of_service?url=" + location.href;
      return;
    }
    
		if (this.get("hide-upgrade-account") != "1") {
      if ($("upgrade-account")) {
   	    $("upgrade-account").show();
      }
		}
  }
}
PostModeMenu = {
  init: function() {
    this.original_background_color = $(document.body).css("background-color")
    
    if (Cookie.get("mode") == "") {
      Cookie.put("mode", "view");
      $("#mode-box select").val("view");
    } else {
      $("#mode-box select").val(Cookie.get("mode"));
    }
  
    this.change();
  },

  change: function() {
    var s = $("#mode-box select").val();
    Cookie.put("mode", s, 7);

    if (s == "view") {
      $(document.body).css({"background-color": this.original_background_color});
    } else if (s == "edit") {
      $(document.body).css({"background-color": "#3A3"});
    } else if (s == "add-fav") {
      $(document.body).css({"background-color": "#FFA"});
    } else if (s == "remove-fav") {
      $(document.body).css({"background-color": "#FFA"});
    } else if (s == "rating-q") {
      $(document.body).css({"background-color": "#AAA"});
    } else if (s == "rating-s") {
      $(document.body).css({"background-color": "#6F6"});
    } else if (s == "rating-e") {
      $(document.body).css({"background-color": "#F66"});
    } else if (s == "vote-down") {
      $(document.body).css({"background-color": "#FAA"});
    } else if (s == "vote-up") {
      $(document.body).css({"background-color": "#AFA"});
    } else if (s == "lock-rating") {
      $(document.body).css({"background-color": "#AA3"});
    } else if (s == "lock-note") {
      $(document.body).css({"background-color": "#3AA"});
    } else if (s == "approve") {
      $(document.body).css({"background-color": "#26A"});
    } else if (s == "unapprove") {
      $(document.body).css({"background-color": "#F66"});
    } else if (s == "add-to-pool") {
      $(document.body).css({"background-color": "#26A"});
    } else if (s == "apply-tag-script") {
      $(document.body).css({"background-color": "#A3A"});
    } else if (s == "edit-tag-script") {
      $(document.body).css({"background-color": "#FFF"});
    
      var script = Cookie.get("tag-script");
      script = prompt("Enter a tag script", script);
    
      if (script) {
        Cookie.put("tag-script", script);
        $("#mode-box select").val("apply-tag-script");
      } else {
        $("#mode-box select").val("view");
      }

      this.change();
    } else {
      $(document.body).css({"background-color": "#AFA"});
    }
  },

  click: function(post_id) {
    var s = $("#mode-box select").val();

    if (s.value == "view") {
      return true;
    } else if (s.value == "add-fav") {
      Favorite.create(post_id);
    } else if (s.value == "remove-fav") {
      Favorite.destroy(post_id);
    } else if (s.value == "edit") {
			// TODO
    } else if (s.value == 'vote-down') {
      PostVote.create("down", post_id);
    } else if (s.value == 'vote-up') {
      PostVote.create("up", post_id);
    } else if (s.value == 'rating-q') {
      Post.update(post_id, {"post[rating]": "questionable"});
    } else if (s.value == 'rating-s') {
      Post.update(post_id, {"post[rating]": "safe"});
    } else if (s.value == 'rating-e') {
      Post.update(post_id, {"post[rating]": "explicit"});
    } else if (s.value == 'lock-rating') {
      Post.update(post_id, {"post[is_rating_locked]": "1"});
    } else if (s.value == 'lock-note') {
      Post.update(post_id, {"post[is_note_locked]": "1"});
    } else if (s.value == 'unapprove') {
      Unapproval.create(post_id);
    } else if (s.value == "approve") {
      Post.update(post_id, {"post[is_pending]": "0"});
    } else if (s.value == 'add-to-pool') {
      Pool.add_post(post_id, 0);
    } else if (s.value == "apply-tag-script") {
      var tag_script = Cookie.get("tag-script");
      TagScript.run(post_id, tag_script);
    }

    return false
  }
}

TagScript = {
  parse: function(script) {
    return script.match(/\[.+?\]|\S+/g);
  },

  test: function(tags, predicate) {
    var split_pred = predicate.match(/\S+/g);
    var is_true = true;

    split_pred.each(function(x) {
      if (x[0] == "-") {
        if (tags.include(x.substr(1, 100))) {
          is_true = false
          throw $break
        }
      } else {
        if (!tags.include(x)) {
          is_true = false
          throw $break
        }
      }
    })

    return is_true
  },

  process: function(tags, command) {
    if (command.match(/^\[if/)) {
      var match = command.match(/\[if\s+(.+?)\s*,\s*(.+?)\]/)
      if (TagScript.test(tags, match[1])) {
        return TagScript.process(tags, match[2])
      } else {
        return tags
      }
    } else if (command == "[reset]") {
      return []
    } else if (command[0] == "-") {
      return tags.reject(function(x) {return x == command.substr(1, 100)})
    } else {
      tags.push(command)
      return tags
    }
  },

  run: function(post_id, tag_script) {
    var commands = TagScript.parse(tag_script)
    var post = Post.posts.get(post_id)
    var old_tags = post.tags.join(" ")

    commands.each(function(x) {
      post.tags = TagScript.process(post.tags, x)
    })

    Post.update(post_id, {"post[old_tags]": old_tags, "post[tags]": post.tags.join(" ")})
  }
}

$(document).ready(function() {
	$("#mode-box select").click(PostModeMenu.change)
	PostModeMenu.init();
});