(function () {
    'use strict';

    angular
        .module('saz')
        .provider('storylineLesson', storylineLesson);

    function storylineLesson () {
        var storylineLesson = null;
        return {
            setStorylineLessonData: setStorylineLessonData,
            $get: ['_', storylineLessonFactory]
        };

        function setStorylineLessonData(storylineLessonData) {
            storylineLesson = storylineLessonData;
        }

        function storylineLessonFactory(_) {
            var currentStorylineLessons = null;
            var activityTypes = {
                read: {
                    name: "read",
                    displayName: "Read",
                    iconClass: "icon-readC",
                    selected: true,
                    id: 2,
                    displayOrder: 1
                },
                listen: {
                    name: "listen",
                    displayName: "Listen",
                    iconClass: "icon-listenC",
                    selected: true,
                    id: 1,
                    displayOrder: 2
                },
                quiz: {
                    name: "quiz",
                    displayName: "Quiz",
                    iconClass: "icon-quizC",
                    selected: true,
                    id: 3,
                    displayOrder: 3
                },
                watch: {
                    name: "watch",
                    displayName: "Watch",
                    iconClass: "icon-watchC",
                    selected: true,
                    id: 33,
                    displayOrder: 4
                },
                interactive_lesson: {
                    name: "interactive_lesson",
                    displayName: "Interactive Science Lesson",
                    iconClass: "icon-scienceInteractiveC",
                    selected: true,
                    id: 36,
                    displayOrder: 5
                },
                interactive_component: {
                    name: "interactive_component",
                    displayName: "Interactive Science Lesson",
                    iconClass: "icon-scienceInteractiveC",
                    selected: true,
                    id: 43,
                    displayOrder: 6
                },
                formative_worksheet: {
                    name: "formative_worksheet",
                    displayName: "Quiz",
                    iconClass: "icon-quizC",
                    selected: true,
                    id: 45,
                    displayOrder: 7
                }
            };
            
            return {
                getLessonsForStoryline: getLessonsForStoryline,
                getActivitiesForCurrentStorylineLessons: getActivitiesForCurrentStorylineLessons,
                getActivitiesForResources: getActivitiesForResources,
                getAssignableResources: getAssignableResources,
                getReadingLevels: getReadingLevels
            };
            
            function getLessonsForStoryline(id) {
                currentStorylineLessons =  _.reduce(storylineLesson, function(memo, lesson) {
                    if(lesson.lesson_number == id && lesson.material !== null && 
                        ((lesson.material.typeId==102 && lesson.material.worksheetResourceDeploymentId) ||
                         lesson.available_in_kaz ||
                         lesson.investigation_pack_material_id || lesson.landing_page_material_id)) {
                        memo.push(lesson);
                    }
                    return memo;
                }, []);
                return currentStorylineLessons;
            }
            
            function getActivitiesForCurrentStorylineLessons() {
                return _.sortBy(_.reduce(currentStorylineLessons, function(memo, lesson) {
                    if(lesson.material.readResourceDeploymentId && !memo.includes(activityTypes['read'])) {
                        memo.push(activityTypes['read']);
                    }
                    if(lesson.material.listenResourceDeploymentId && !memo.includes(activityTypes['listen'])) {
                        memo.push(activityTypes['listen']);
                    }
                    if(lesson.material.quizResourceDeploymentId && !memo.includes(activityTypes['quiz'])) {
                        memo.push(activityTypes['quiz']);
                    }
                    if(lesson.material.watchResourceDeploymentId && !memo.includes(activityTypes['watch'])) {
                        memo.push(activityTypes['watch']);
                    }
                    if(lesson.material.interactiveLessonResourceDeploymentId && !memo.includes(activityTypes['interactive_lesson'])) {
                        memo.push(activityTypes['interactive_lesson']);
                    }
                    if(lesson.material.interactiveComponentResourceDeploymentId && !memo.includes(activityTypes['interactive_component'])) {
                        memo.push(activityTypes['interactive_component']);
                    }
                    if(lesson.material.worksheetResourceDeploymentId && !memo.includes(activityTypes['formative_worksheet'])) {
                        memo.push(activityTypes['formative_worksheet']);
                    }
                    return memo;
                }, []), function(activityType) {
                    return activityType.displayOrder;
                });
            }
            
            function getActivitiesForResources(resources) {
                return _.reduce(resources, function(memo, material) {
                    if(material.readResourceDeploymentId && !memo.includes('read')) {
                        memo.push(activityTypes['read'].name);
                    }
                    if(material.listenResourceDeploymentId && !memo.includes('listen')) {
                        memo.push(activityTypes['listen'].name);
                    }
                    if(material.quizResourceDeploymentId && !memo.includes('quiz')) {
                        memo.push(activityTypes['quiz'].name);
                    }
                    if(material.watchResourceDeploymentId && !memo.includes('watch')) {
                        memo.push(activityTypes['watch'].name);
                    }
                    if(material.interactiveLessonResourceDeploymentId && !memo.includes('interactive_lesson')) {
                        memo.push(activityTypes['interactive_lesson'].name);
                    }
                    if(material.interactiveComponentResourceDeploymentId && !memo.includes('interactive_component')) {
                        memo.push(activityTypes['interactive_component'].name);
                    }
                    if(material.worksheetResourceDeploymentId && !memo.includes('formative_worksheet')) {
                        memo.push(activityTypes['formative_worksheet'].name);
                    }
                    return memo;
                }, []);
            }
            
            function getAssignableResources() {
                return _.reduce(currentStorylineLessons, function(memo, lesson) {
                    if(lesson.material.rkResourceId) {
                        lesson.selected = true;
                        memo.push(lesson);
                    }
                    return memo;
                }, []);
            }
            
            function getReadingLevels() {
                var hasMultiLevelResource = _.filter(getAssignableResources(), function(resource) {
                    return resource.landing_page_material_id !== null && resource.landing_page_material_id !== 0;
                }).length >= 1;

                if(hasMultiLevelResource) {
                    return ['low', 'mid', 'high'];
                }
                else if(hasSitNResource()) {
                    return ['Low/Mid', 'High'];
                }
                return [];
            }

            function hasSitNResource() {
                return _.filter(getAssignableResources(), function(resource) {
                    return resource.material.typeId === null;
                }).length >= 1;
            }
        }
    }
})();