import { Injectable, NotFoundException } from '@nestjs/common';
import { PrismaService } from '../prisma/prisma.service';

@Injectable()
export class ContactService {
  constructor(private readonly prisma: PrismaService) {}

  async createMessage(data: { name: string; email: string; phone?: string; message: string }) {
    return this.prisma.contactMessage.create({ data });
  }

  async getAllMessages(isRead?: boolean) {
    const where = isRead !== undefined ? { isRead } : {};
    return this.prisma.contactMessage.findMany({
      where,
      orderBy: { createdAt: 'desc' },
    });
  }

  async markAsRead(id: string) {
    const msg = await this.prisma.contactMessage.findUnique({ where: { id } });
    if (!msg) throw new NotFoundException('Contact message not found');
    return this.prisma.contactMessage.update({
      where: { id },
      data: { isRead: true },
    });
  }

  async deleteMessage(id: string) {
    const msg = await this.prisma.contactMessage.findUnique({ where: { id } });
    if (!msg) throw new NotFoundException('Contact message not found');
    return this.prisma.contactMessage.delete({ where: { id } });
  }

  async getCounts() {
    const [total, unread] = await Promise.all([
      this.prisma.contactMessage.count(),
      this.prisma.contactMessage.count({ where: { isRead: false } }),
    ]);
    return { total, unread };
  }
}