/**
 * Created by Mai on 2017/7/5.
 */

const rationContent = 0, rationPrice = 1, rationPriceConverse = 2, billsPrice = 3;

const sumTotalFeeFlag = 0, totalFeeFlag = 1;
const rationContentUnitFeeFlag = 0, averageQtyUnitFeeFlag = 1, billsPriceUnitFeeFlag = 2;

let rationContentCalcFields = [
    {'type': 'common', 'unitFeeFlag': rationContentUnitFeeFlag, 'totalFeeFlag': totalFeeFlag},
    {'type': 'labour', 'unitFeeFlag': rationContentUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
    {'type': 'material', 'unitFeeFlag': rationContentUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
    {'type': 'machine', 'unitFeeFlag': rationContentUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
];
let rationPriceCalcFields = [
    {'type': 'common', 'unitFeeFlag': averageQtyUnitFeeFlag, 'totalFeeFlag': totalFeeFlag},
    {'type': 'labour', 'unitFeeFlag': averageQtyUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
    {'type': 'material', 'unitFeeFlag': averageQtyUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
    {'type': 'machine', 'unitFeeFlag': averageQtyUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
];
let rationPriceConverseCalcFields = [
    {'type': 'common', 'unitFeeFlag': averageQtyUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
    {'type': 'labour', 'unitFeeFlag': averageQtyUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
    {'type': 'material', 'unitFeeFlag': averageQtyUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
    {'type': 'machine', 'unitFeeFlag': averageQtyUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
];
let billsPriceCalcFields = [
    {'type': 'common', 'unitFeeFlag': billsPriceUnitFeeFlag, 'totalFeeFlag': totalFeeFlag},
    {'type': 'labour', 'unitFeeFlag': billsPriceUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
    {'type': 'material', 'unitFeeFlag': billsPriceUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
    {'type': 'machine', 'unitFeeFlag': billsPriceUnitFeeFlag, 'totalFeeFlag': sumTotalFeeFlag},
];

Number.prototype.toDecimal = function (ADigit) {
    return parseFloat(this.toFixed(ADigit));
};

let nodeCalcObj = {
    node: null,
    digit: 2,
    field: null,
    findFee: function (fieldName) {
        if (!this.node.data.fees) {
            this.node.data.fees = [];
        }
        for (let fee of this.node.data.fees) {
            if (fee.fieldName === fieldName) {
                return fee;
            }
        }
        return null;
    },
    AddFee: function (fieldName) {
        let fee = {
            'fieldName': fieldName,
            'unitFee': 0,
            'totalFee': 0,
            'tenderUnitFee': 0,
            'tenderTotalFee': 0
        };
        this.node.data.fees.push(fee);
        this.node.data.feesIndex[fieldName] = fee;
    },
    checkFields: function (fields) {
        for (let field of fields) {
            if (!this.findFee(field.type)) {
                this.AddFee(field.type);
            }
        }
    },
    getFee: function (data, fullField) {
        let fields = fullField.split('.'), value = data;
        for (let field of fields) {
            if (value[field]) {
                value = value[field];
            } else {
                return 0;
            }
        }
        return value;
    },
    getFeeSplit: function (data, fullFields) {
        let value = data;
        for (let field of fullFields) {
            if (value[field]) {
                value = value[field];
            } else {
                return 0;
            }
        }
        return value;
    },
    sumTotalFee: function() {
        let result = 0, child;
        for (child of this.node.children) {
            result += this.getFee(child.data, this.field.totalFee);
            //result += child.data.feesIndex[this.field.type].totalFee;
            //result += this.getFeeSplit(child.data, this.field.totalFeeSplit);
        }
        return result;
    },
    averageQty: function() {
        let result = 0, child, qty;
        result = this.sumTotalFee(this.field);
        qty = this.getFee(this.node.data, 'quantity');
        if (qty !== 0) {
            result = result / qty;
        }
        return result;
    },
    totalFee: function () {
        return this.getFee(this.node.data, this.field.unitFee) * this.getFee(this.node.data, 'quantity');
        //return this.node.data.feesIndex[this.field.type].unitFee * this.node.data.quantity;
        //return this.getFeeSplit(this.node.data, this.field.unitFeeSplit) * this.getFee(this.node.data, 'quantity');
    },
    rationContentUnitFee: function () {
        let result = 0, child, qty = this.getFee(this.node.data, 'quantity');
        if (qty === 0) {
            qty = 1;
        }
        for (child of this.node.children) {
            result += (this.getFee(child.data, this.field.unitFee) * this.getFee(child.data, 'quantity') / qty).toDecimal(this.digit);
            //result += (child.data.feesIndex[this.field.type].unitFee * child.data.quantity / qty).toDecimal(this.digit);
            //result += (this.getFeeSplit(child.data, this.field.unitFeeSplit) * this.getFee(child.data, 'quantity') / qty).toDecimal(this.digit);
        }
        return result;
    }
};

class BillsCalc {
    constructor (project, CalcFlag) {
        this.project = project;
        this.CalcFlag = CalcFlag;
        this.digit = 2;
        switch (this.CalcFlag) {
            case rationContent:
                this.calcFieldName = rationContentCalcFields;
                break;
            case rationPrice:
                this.calcFieldName = rationPriceCalcFields;
                break;
            case rationPriceConverse:
                this.calcFieldName = rationPriceConverseCalcFields;
                break;
            case billsPrice:
                this.calcFieldName = billsPriceCalcFields;
                break;
            default:
                this.calcFieldName = [];
        }
        this.InitFields(this.calcFieldName);
    };

    calcLeaf (node, fields) {
        nodeCalcObj.node = node;
        nodeCalcObj.digit = this.digit;
        nodeCalcObj.checkFields(fields);
        let nodeCalc = nodeCalcObj;
        for (let field of fields) {
            nodeCalcObj.field = field;
            switch (field.unitFeeFlag) {
                case rationContentUnitFeeFlag:
                    node.data.feesIndex[field.type].unitFee = nodeCalcObj.rationContentUnitFee().toDecimal(this.digit);
                    break;
                case averageQtyUnitFeeFlag:
                    node.data.feesIndex[field.type].unitFee = nodeCalcObj.averageQty().toDecimal(this.digit);
                    break;
                // to do billsPriceUnitFeeFlag(套用定额计算程序)
                // case billsPriceUnitFeeFlag:
                //     break;
                default:
                    node.data.feesIndex[field.type].unitFee = 0;
            }
            switch (field.totalFeeFlag) {
                case sumTotalFeeFlag:
                    node.data.feesIndex[field.type].totalFee = nodeCalcObj.sumTotalFee().toDecimal(this.digit);
                    break;
                case totalFeeFlag:
                    node.data.feesIndex[field.type].totalFee = nodeCalcObj.totalFee().toDecimal(this.digit);
                    break;
                default:
                    node.data.feesIndex[field.type].totalFee = 0;
            }
        }
    };
    calcParent (node, fields) {
        nodeCalcObj.node = node;
        nodeCalcObj.checkFields(fields);
        for (let field of fields) {
            nodeCalcObj.field = field;
            node.data.feesIndex[field.type].totalFee = nodeCalcObj.sumTotalFee().toDecimal(this.digit);
        }
    };
    calcNodes (nodes) {
        for (let node of nodes) {
            if (node.sourceType !== this.project.Bills.getSourceType()) {
                return;
            }

            if (node.source.children.length > 0) {
                this.calcNodes(node.children);
                this.calcParent(node, this.calcFieldName);
            } else {
                this.calcLeaf(node, this.calcFieldName);
            }
        }
    };
    calcAll () {
        this.calcNodes(this.project.mainTree.roots);
    };
    InitFields (fields) {
        for (let field of fields) {
            if (field.unitFee) return;
            field.unitFee = 'feesIndex.' + field.type + '.unitFee';
            field.unitFeeSplit = field.unitFee.split('.');
            field.totalFee = 'feesIndex.' + field.type + '.totalFee';
            field.totalFeeSplit = field.totalFee.split('.');
            field.tenderUnitFee = 'feesIndex.'+ field.type + '.tenderUnitFee';
            field.tenderUnitFeeSplit = field.tenderUnitFee.split('.');
            field.tenderTotalFee = 'feesIndex.' + field.type + '.tenderTotalFee';
            field.tenderTotalFeeSplit = field.tenderTotalFee.split('.');
        }
    }
}