"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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};
var __metadata = (this && this.__metadata) || function (k, v) {
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.CartsService = void 0;
const common_1 = require("@nestjs/common");
const prisma_service_1 = require("../prisma/prisma.service");
let CartsService = class CartsService {
    prisma;
    constructor(prisma) {
        this.prisma = prisma;
    }
    async getCart(userId) {
        const cart = await this.ensureCart(userId);
        return this.mapCart(cart);
    }
    async addItem(userId, dto) {
        const product = await this.prisma.product.findUnique({
            where: { id: dto.productId },
            include: {
                catalog: true,
                company: true,
            },
        });
        if (!product || !product.isActive) {
            throw new common_1.NotFoundException('محصول یافت نشد');
        }
        this.validateMeterage(product, dto.meterage);
        const cart = await this.ensureCart(userId);
        const existing = await this.prisma.cartItem.findUnique({
            where: {
                cartId_productId: { cartId: cart.id, productId: product.id },
            },
        });
        if (existing) {
            const newMeterage = existing.meterage + dto.meterage;
            this.validateMeterage(product, newMeterage);
            await this.prisma.cartItem.update({
                where: { id: existing.id },
                data: {
                    meterage: newMeterage,
                    notes: dto.notes?.trim() || existing.notes,
                },
            });
        }
        else {
            await this.prisma.cartItem.create({
                data: {
                    cartId: cart.id,
                    productId: product.id,
                    catalogCode: product.catalog.code,
                    productName: product.name,
                    productCode: product.code,
                    color: product.color,
                    meterage: dto.meterage,
                    notes: dto.notes?.trim() || null,
                    companyId: product.companyId,
                    companyName: product.company.name,
                },
            });
        }
        await this.prisma.cart.update({
            where: { id: cart.id },
            data: {
                companyId: product.companyId,
                updatedAt: new Date(),
            },
        });
        return this.getCart(userId);
    }
    async updateItem(userId, itemId, dto) {
        const cart = await this.ensureCart(userId);
        const item = await this.prisma.cartItem.findFirst({
            where: { id: itemId, cartId: cart.id },
            include: { product: true },
        });
        if (!item)
            throw new common_1.NotFoundException('آیتم سبد یافت نشد');
        this.validateMeterage(item.product, dto.meterage);
        await this.prisma.cartItem.update({
            where: { id: itemId },
            data: {
                meterage: dto.meterage,
                notes: dto.notes === undefined ? undefined : dto.notes?.trim() || null,
            },
        });
        await this.prisma.cart.update({
            where: { id: cart.id },
            data: { updatedAt: new Date() },
        });
        return this.getCart(userId);
    }
    async removeItem(userId, itemId) {
        const cart = await this.ensureCart(userId);
        const item = await this.prisma.cartItem.findFirst({
            where: { id: itemId, cartId: cart.id },
        });
        if (!item)
            throw new common_1.NotFoundException('آیتم سبد یافت نشد');
        await this.prisma.cartItem.delete({ where: { id: itemId } });
        const remaining = await this.prisma.cartItem.findMany({
            where: { cartId: cart.id },
            take: 1,
        });
        await this.prisma.cart.update({
            where: { id: cart.id },
            data: {
                companyId: remaining[0]?.companyId ?? null,
                updatedAt: new Date(),
            },
        });
        return this.getCart(userId);
    }
    async updateNotes(userId, dto) {
        const cart = await this.ensureCart(userId);
        await this.prisma.cart.update({
            where: { id: cart.id },
            data: { notes: dto.notes?.trim() || null },
        });
        return this.getCart(userId);
    }
    async clearCart(userId) {
        const cart = await this.ensureCart(userId);
        await this.prisma.cartItem.deleteMany({ where: { cartId: cart.id } });
        await this.prisma.cart.update({
            where: { id: cart.id },
            data: { notes: null, companyId: null },
        });
        return this.getCart(userId);
    }
    validateMeterage(product, meterage) {
        if (meterage < product.minMeterage) {
            throw new common_1.BadRequestException(`حداقل متراژ برای ${product.name} برابر ${product.minMeterage} است`);
        }
        const rem = Math.round((meterage / product.orderMultiplier) * 1000) / 1000;
        if (Math.abs(rem - Math.round(rem)) > 1e-6) {
            throw new common_1.BadRequestException(`متراژ باید مضرب ${product.orderMultiplier} باشد`);
        }
    }
    async ensureCart(userId) {
        let cart = await this.prisma.cart.findFirst({
            where: { userId },
            include: { items: true },
        });
        if (!cart) {
            cart = await this.prisma.cart.create({
                data: { userId },
                include: { items: true },
            });
        }
        return cart;
    }
    mapCart(cart) {
        const companyNames = [
            ...new Set(cart.items.map((item) => item.companyName).filter(Boolean)),
        ];
        return {
            id: cart.id,
            userId: cart.userId,
            companyId: cart.companyId ?? cart.items[0]?.companyId,
            companyName: companyNames.join('، '),
            notes: cart.notes ?? undefined,
            items: cart.items.map((item) => ({
                id: item.id,
                productId: item.productId,
                catalogCode: item.catalogCode,
                productName: item.productName,
                productCode: item.productCode,
                color: item.color,
                meterage: item.meterage,
                notes: item.notes ?? undefined,
                companyId: item.companyId,
                companyName: item.companyName,
            })),
            totalMeterage: cart.items.reduce((s, i) => s + i.meterage, 0),
            itemCount: cart.items.length,
            createdAt: cart.createdAt.toISOString(),
            updatedAt: cart.updatedAt.toISOString(),
        };
    }
};
exports.CartsService = CartsService;
exports.CartsService = CartsService = __decorate([
    (0, common_1.Injectable)(),
    __metadata("design:paramtypes", [prisma_service_1.PrismaService])
], CartsService);
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