const prisma = require("../config/prisma");
const { expireOverdueClaims } = require("../utils/gameWindow");

const getGainByTicketCode = async (req, res) => {
  try {
    const { code } = req.params;

    await expireOverdueClaims();

    const ticket = await prisma.ticket.findUnique({
      where: { code: code.toUpperCase() },
      include: {
        lot: true,
        user: {
          select: {
            id: true,
            firstname: true,
            lastname: true,
            email: true,
          },
        },
        participation: {
          include: {
            claim: true,
          },
        },
      },
    });

    if (!ticket) {
      return res.status(404).json({
        message: "Ticket introuvable.",
      });
    }

    if (!ticket.isUsed || !ticket.participation) {
      return res.status(400).json({
        message: "Ce ticket n'a pas encore été utilisé par un client.",
      });
    }

    return res.json({
      ticket: {
        code: ticket.code,
        usedAt: ticket.usedAt,
      },
      client: ticket.user,
      lot: {
        name: ticket.lot.name,
        description: ticket.lot.description,
        value: ticket.lot.value,
      },
      claim: {
        id: ticket.participation.claim.id,
        status: ticket.participation.claim.status,
        claimedAt: ticket.participation.claim.claimedAt,
      },
    });
  } catch (error) {
    console.error("Erreur recherche gain employé:", error);
    return res.status(500).json({
      message: "Erreur serveur lors de la recherche du gain.",
    });
  }
};

const deliverClaim = async (req, res) => {
  try {
    const { id } = req.params;
    const employeeId = req.user.id;

    await expireOverdueClaims();

    const claim = await prisma.claim.findUnique({
      where: { id: Number(id) },
    });

    if (!claim) {
      return res.status(404).json({
        message: "Réclamation introuvable.",
      });
    }

    if (claim.status === "DELIVERED") {
      return res.status(409).json({
        message: "Ce lot a déjà été remis.",
      });
    }

    if (claim.status === "CANCELLED") {
      return res.status(400).json({
        message: "Ce gain est expiré et ne peut plus être remis.",
      });
    }

    const updatedClaim = await prisma.claim.update({
      where: { id: Number(id) },
      data: {
        status: "DELIVERED",
        claimedAt: new Date(),
        validatedByEmployeeId: employeeId,
      },
    });

    return res.json({
      message: "Lot marqué comme remis avec succès.",
      claim: updatedClaim,
    });
  } catch (error) {
    console.error("Erreur remise lot:", error);
    return res.status(500).json({
      message: "Erreur serveur lors de la remise du lot.",
    });
  }
};

module.exports = {
  getGainByTicketCode,
  deliverClaim,
};