###
# Copyright (C) 2014 Andrey Antukh <niwi@niwi.be>
# Copyright (C) 2014 Jesús Espino Garcia <jespinog@gmail.com>
# Copyright (C) 2014 David Barragán Merino <bameda@dbarragan.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# File: modules/backlog/sprints.coffee
###

taiga = @.taiga

module = angular.module("taigaBacklog")


#############################################################################
## Sprint Actions Directive
#############################################################################

BacklogSprintDirective = ($repo, $rootscope) ->
    link = ($scope, $el, $attrs) ->
        $scope.$watch $attrs.tgBacklogSprint, (sprint) ->
            sprint = $scope.$eval($attrs.tgBacklogSprint)

            if $scope.$first
                $el.addClass("sprint-current")
                $el.find(".sprint-table").addClass('open')
            else if sprint.closed
                $el.addClass("sprint-closed")
            else if not $scope.$first and not sprint.closed
                $el.addClass("sprint-old-open")

        # Event Handlers
        $el.on "click", ".sprint-name > .icon-arrow-up", (event) ->
            target = $(event.currentTarget)
            target.toggleClass('active')
            $el.find(".sprint-table").toggleClass('open')

        $el.on "click", ".sprint-name > .icon-edit", (event) ->
            sprint = $scope.$eval($attrs.tgBacklogSprint)
            $rootscope.$broadcast("sprintform:edit", sprint)

        $scope.$on "$destroy", ->
            $el.off()

    return {link: link}

module.directive("tgBacklogSprint", ["$tgRepo", "$rootScope", BacklogSprintDirective])


#############################################################################
## Sprint Header Directive
#############################################################################

BacklogSprintHeaderDirective = ($navUrls) ->
    template = _.template("""
    <div class="sprint-name">
        <a class="icon icon-arrow-up" href="" title="Compact Sprint"></a>

        <% if(isVisible){ %>
        <a href="<%- taskboardUrl %>" title="'Go to the taskboard of '<%- name %>'">
            <span><%- name %></span>
        </a>
        <% } %>

        <% if(isEditable){ %>
        <a class="icon icon-edit" href="" title="Edit Sprint"></a>
        <% } %>
    </div>

    <div class="sprint-summary">
        <div class="sprint-date"><%- estimatedDateRange %></div>
        <ul>
            <li>
                <span class="number"><%- closedPoints %></span>
                <span class="description">closed</span>
            </li>
            <li>
                <span class="number"><%- totalPoints %></span>
                <span class="description">total</span>
            </li>
        </ul>
    </div>
    """)

    link = ($scope, $el, $attrs, $model) ->
        isEditable = ->
            return $scope.project.my_permissions.indexOf("modify_milestone") != -1

        isVisible = ->
            return $scope.project.my_permissions.indexOf("view_milestones") != -1

        render = (sprint) ->
            taskboardUrl = $navUrls.resolve("project-taskboard",
                                            {project: $scope.project.slug, sprint: sprint.slug})

            start = moment(sprint.estimated_start).format("DD MMM YYYY")
            finish = moment(sprint.estimated_finish).format("DD MMM YYYY")
            estimatedDateRange = "#{start}-#{finish}"

            ctx = {
                name: sprint.name
                taskboardUrl: taskboardUrl
                estimatedDateRange: estimatedDateRange
                closedPoints: sprint.closed_points or 0
                totalPoints: sprint.total_points or 0
                isVisible: isVisible()
                isEditable: isEditable()
            }
            $el.html(template(ctx))


        $scope.$watch $attrs.ngModel, (sprint) ->
            render(sprint)

        $scope.$on "sprintform:edit:success", ->
            render($model.$modelValue)

        $scope.$on "$destroy", ->
            $el.off()

    return {
        link: link
        restrict: "EA"
        require: "ngModel"
    }

module.directive("tgBacklogSprintHeader", ["$tgNavUrls", "$tgRepo", "$rootScope", BacklogSprintHeaderDirective])