'use strict';

var enVisageServices = angular.module('enVisageServices', []);

enVisageServices
.factory('hoursResourcesConverter', ['$http', function ($http) {
    var ec2uom = {};
    $http({
        method: 'POST',
        url: '/ExpenditureCategory/GetCategoriesWithUoMValues'
    }).success(function (data, status, headers, config) {
        ec2uom = data;
    });

    var retrieveHoursForEC = function (expCatId) {
        if (!ec2uom || ec2uom[expCatId] == undefined || ec2uom[expCatId] == null) {
            throw 'Error with data for h/r converter';
        }

        var hours = parseFloat(ec2uom[expCatId].UoMValue);
        if (hours <= 0) {
            throw 'Incorrect data for expenditure [' + expCatId + ']: ' + ec2uom[expCatId];
        }

        return hours;
    }

    var converter = {
        convertToHours: function (expCatId, value) {
            if (!expCatId || !value || value < 0)
                return 0;

            var hours = retrieveHoursForEC(expCatId);
            if (hours <= 0)
                return 0;

            return hours * value;
        },

        convertToResources: function (expCatId, value) {
            if (!expCatId || !value || value < 0)
                return 0;

            var hours = retrieveHoursForEC(expCatId);
            if (hours <= 0)
                return 0;

            return value / hours;
        },

        getExpenditures: function () {
            return ec2uom;
        }
    };

    return converter;
}])
.factory('dataSources', ['$http', function ($http) {
    var expCats = {};
    $http({
        method: 'POST',
        url: '/ExpenditureCategory/GetAllCategories'
    }).success(function (data, status, headers, config) {
        expCats = data;
    });

    var serviceContainer = {
        getExpenditures: function () {
            return expCats;
        },
        getExpenditureById: function (id) {
            var scenarioExpCatKeys = Object.keys(expCats);
            if ($.inArray(id, scenarioExpCatKeys) < 0) {
                return null;
            }
            return expCats[id];
        }
    };

    return serviceContainer;
}])
.factory('cellHighligting', [function () {
    var service = {
        // compares 2 decimals rounded to 3 decimals
        // if difference is less than 0.005 then consider values are equal
        compare: function (val1, val2) {
            if (!isNaN(parseFloat(val1)) && !isNaN(parseFloat(val2))) {

                var val1_ = Math.round(parseFloat(val1) * 1000) / 1000;
                var val2_ = Math.round(parseFloat(val2) * 1000) / 1000;
                if ((-0.005 > (val1_ - val2_)))
                    return -1;
                else if ((0.005 < (val1_ - val2_)))
                    return 1;
                else if (val1_ == 0 && val2_ == 0)
                    return null;
                else
                    return 0;
            }
        },

        setCellCssClasses: function (expCatRow, resRow, colIndex) {
            if (resRow == null) { // category row
                if (expCatRow == null || colIndex == null || expCatRow.Cells == null || expCatRow.Cells.length <= colIndex)
                    return;
                if (expCatRow.CSSClass == null)
                    expCatRow.CSSClass = new Array(expCatRow.Cells.length);

                expCatRow.CSSClass[colIndex] = (expCatRow.CSSClass[colIndex] || '').replace(/ cellover/g, '').replace(/ cellless/g, '').replace(/ cellequal/g, '');
                var compareResult = this.compare(expCatRow.Cells[colIndex].Value1, expCatRow.Cells[colIndex].Value2);
                if (compareResult > 0)
                    expCatRow.CSSClass[colIndex] += ' cellover';
                else if (compareResult < 0)
                    expCatRow.CSSClass[colIndex] += ' cellless';
                else if (compareResult == 0)
                    expCatRow.CSSClass[colIndex] += ' cellequal';
                // assign more classes if needed

                expCatRow.CSSClass[colIndex] = expCatRow.CSSClass[colIndex];
            } else { // updating resource row
                if (expCatRow == null || colIndex == null || resRow.Cells == null || resRow.Cells.length <= colIndex)
                    return;
                if (resRow.CSSClass == null)
                    resRow.CSSClass = new Array(resRow.Cells.length);

                resRow.CSSClass[colIndex] = (resRow.CSSClass[colIndex] || '').replace(/ cellover/g, '').replace(/ cellless/g, '').replace(/ cellequal/g, '');
                var compareResult = this.compare(resRow.Cells[colIndex].Value1, resRow.Cells[colIndex].Value2);
                if (compareResult > 0)
                    resRow.CSSClass[colIndex] += ' cellover';
                else if (compareResult < 0)
                    resRow.CSSClass[colIndex] += ' cellless';
                else if (compareResult == 0)
                    resRow.CSSClass[colIndex] += ' cellequal';
                // assign more classes if needed

                resRow.CSSClass[colIndex] = resRow.CSSClass[colIndex];
            }
        }
    };

    return service;
}])
.factory('teamInfoService', [function () {
    var teams = {};

    return {
        init: function (teamsArray) {
            if (!teamsArray) {
                teams = {};
                return;
            }

            if (!angular.isArray(teamsArray)) {
                teams = angular.copy(teamsArray);
                return;
            }

            teams = {};	 // SA. ENV-1254

            for (var i = 0; i < teamsArray.length; i++) {
                teams[teamsArray[i].Id] = angular.copy(teamsArray[i]);
            }
        },
        getById: function (teamId) {
            if (!teams)
                return null;

            return teams[teamId] || null;
        },
        getAll: function () {
            return teams;
        },
        isExists: function (teamId) {
            if (!teamId || !teams)
                return false;

            return !!teams[teamId];
        },
        getExpenditureCategoryInTeam: function (teamId, expCatId) {
            if (!teamId || !expCatId)
                return null;

            var team = this.getById(teamId);
            if (!team || !team.ExpCategories)
                return null;

            return team.ExpCategories[expCatId] || null;
        },
        changeExpenditureCategoryValue: function (teamId, expCatId, weekEndingMs, deltaValue) {
            if (!teamId || !expCatId || !weekEndingMs || !deltaValue)
                return;

            var category = this.getExpenditureCategoryInTeam(teamId, expCatId);
            if (!category)
                return;

            if (!category.NeedCapacity[weekEndingMs])
                category.NeedCapacity[weekEndingMs] = 0;

            var newNeedCapacity = category.NeedCapacity[weekEndingMs] + deltaValue;
            category.NeedCapacity[weekEndingMs] = Math.max(newNeedCapacity, 0);
        },
        changeResourceValue: function (teamId, expCatId, resourceId, weekEndingMs, deltaValue) {
            if (!teamId || !expCatId || !resourceId || !weekEndingMs || !deltaValue)
                return;

            var category = this.getExpenditureCategoryInTeam(teamId, expCatId);
            if (!category || !category.Resources)
                return;

            var resource = category.Resources[resourceId];
            if (!resource || !resource.AllocatedCapacity)
                return;

            if (!resource.AllocatedCapacity[weekEndingMs])
                resource.AllocatedCapacity[weekEndingMs] = 0;
            if (!category.AllocatedCapacity[weekEndingMs])
                category.AllocatedCapacity[weekEndingMs] = 0;

            var newResourceAllocatedCapacity = resource.AllocatedCapacity[weekEndingMs] + deltaValue;
            var newCategoryAllocatedCapacity = category.AllocatedCapacity[weekEndingMs] + deltaValue;

            resource.AllocatedCapacity[weekEndingMs] = newResourceAllocatedCapacity;
            category.AllocatedCapacity[weekEndingMs] = newCategoryAllocatedCapacity;
        }
    };
}]);