// import { Attendance } from "./AttandanceModel.js";

// export const markAttendance = async (req, res) => {
//   try {
//     const { date, time, location, notes } = req.body;
//     const salesCoordinatorId = req.user._id;

//     // Get the start and end of the day to check if the attendance is already marked
//     const startOfDay = new Date(date);
//     startOfDay.setHours(0, 0, 0, 0);

//     const endOfDay = new Date(date);
//     endOfDay.setHours(23, 59, 59, 999);

//     // Check if the attendance record exists for today
//     const existingAttendance = await AttendanceSalesCoOrdinator.findOne({
//       salesCoordinator: salesCoordinatorId,
//       "records.date": { $gte: startOfDay, $lte: endOfDay },
//     });

//     if (existingAttendance) {
//       return res.status(400).json({
//         success: false,
//         message: "Attendance for today is already marked.",
//       });
//     }

//     // Check if attendance record exists for the sales coordinator
//     let attendance = await AttendanceSalesCoOrdinator.findOne({
//       salesCoordinator: salesCoordinatorId,
//     });

//     if (!attendance) {
//       // Create a new attendance record if it doesn't exist
//       attendance = new AttendanceSalesCoOrdinator({
//         salesCoordinator: salesCoordinatorId,
//         records: [],
//       });
//     }

//     // Add the new attendance record to the array
//     attendance.records.push({ date, time, location, notes });
//     await attendance.save();

//     res.status(201).json({
//       success: true,
//       message: "Attendance marked successfully",
//       record: { date, time, location, notes },
//     });
//   } catch (error) {
//     res.status(500).json({
//       success: false,
//       message: error.message || "Something went wrong",
//     });
//   }
// };

// export const getAttendanceBySalesCoordinator = async (req, res) => {
//   try {
//     const salesCoordinatorId = req.user._id;

//     const attendance = await AttendanceSalesCoOrdinator.findOne({
//       salesCoordinator: salesCoordinatorId,
//     }).populate("salesCoordinator", "name email");

//     if (!attendance) {
//       return res.status(404).json({
//         success: false,
//         message: "No attendance records found for this sales coordinator.",
//       });
//     }

//     res.status(200).json({
//       success: true,
//       attendance,
//     });
//   } catch (error) {
//     res.status(500).json({
//       success: false,
//       message: error.message || "Something went wrong",
//     });
//   }
// };
// // admin
// export const AdmingetAttendanceBySalesCoordinator = async (req, res) => {
//   try {
//     const { id } = req.params;
//     const { page = 1, show = 10 } = req.query;
//     const limit = parseInt(show);
//     const skip = (page - 1) * limit;

//     // Find attendance records for the given sales coordinator
//     const attendanceDoc = await AttendanceSalesCoOrdinator.findOne({
//       salesCoordinator: id,
//     }).populate("salesCoordinator", "name email");

//     if (!attendanceDoc) {
//       return res.status(404).json({
//         success: false,
//         message: "No attendance records found for this sales coordinator.",
//       });
//     }

//     // Pagination and slicing records
//     const totalData = attendanceDoc.records.length;
//     const paginatedRecords = attendanceDoc.records.slice(skip, skip + limit);

//     res.status(200).json({
//       success: true,
//       salesCoordinator: attendanceDoc.salesCoordinator,
//       attendance: paginatedRecords,
//       total_data: totalData,
//     });
//   } catch (error) {
//     res.status(500).json({
//       success: false,
//       message: error.message || "Something went wrong",
//     });
//   }
// };

// export const getTodayAttendance = async (req, res) => {
//   try {
//     const today = new Date();
//     today.setHours(0, 0, 0, 0);

//     const startOfDay = new Date(today);
//     const endOfDay = new Date(today);
//     endOfDay.setHours(23, 59, 59, 999);

//     const { page = 1, show = 10 } = req.query;
//     const limit = parseInt(show);
//     const skip = (page - 1) * limit;

//     const attendances = await AttendanceSalesCoOrdinator.aggregate([
//       { $unwind: '$records' },
//       {
//         $match: {
//           'records.date': { $gte: startOfDay, $lte: endOfDay }
//         }
//       },
//       {
//         $lookup: {
//           from: 'salescoordinators',
//           localField: 'salesCoordinator',
//           foreignField: '_id',
//           as: 'salesCoordinator'
//         }
//       },
//       { $unwind: '$salesCoordinator' },
//       {
//         $facet: {
//           totalData: [{ $count: 'count' }],
//           attendance: [
//             { $skip: skip },
//             { $limit: limit },
//             {
//               $project: {
//                 salesCoordinator: {
//                   id: '$salesCoordinator._id',
//                   name: '$salesCoordinator.name',
//                   email: '$salesCoordinator.email'
//                 },
//                 date: '$records.date',
//                 time: '$records.time',
//                 location: '$records.location',
//                 note: '$records.notes'
//               }
//             }
//           ]
//         }
//       }
//     ]);

//     const totalData = attendances[0].totalData[0] ? attendances[0].totalData[0].count : 0;

//     res.status(200).json({
//       success: true,
//       attendance: attendances[0].attendance,
//       total_data: totalData
//     });
//   } catch (error) {
//     res.status(500).json({
//       success: false,
//       message: error.message || 'Something went wrong'
//     });
//   }
// };

import { Attendance } from "./AttendanceModel.js";

// Mark attendance
export const markAttendance = async (req, res) => {
  try {
    const { date, time, location, notes } = req.body;
    const userId = req.user._id;
    const userType = req.userType;

    // Get the start and end of the day to check if the attendance is already marked
    const startOfDay = new Date(date);
    startOfDay.setHours(0, 0, 0, 0);

    const endOfDay = new Date(date);
    endOfDay.setHours(23, 59, 59, 999);

    // Check if the attendance record exists for today
    const existingAttendance = await Attendance.findOne({
      userId,
      userType,
      "records.date": { $gte: startOfDay, $lte: endOfDay },
    });

    if (existingAttendance) {
      return res.status(400).json({
        success: false,
        message: "Attendance for today is already marked.",
      });
    }

    // Check if attendance record exists for the user
    let attendance = await Attendance.findOne({ userId, userType });

    if (!attendance) {
      // Create a new attendance record if it doesn't exist
      attendance = new Attendance({
        userId,
        userType,
        records: [],
      });
    }

    // Add the new attendance record to the array
    attendance.records.push({ date, time, location, notes });
    await attendance.save();

    res.status(201).json({
      success: true,
      message: "Attendance marked successfully",
      record: { date, time, location, notes },
    });
  } catch (error) {
    res.status(500).json({
      success: false,
      message: error.message || "Something went wrong",
    });
  }
};

// Get attendance by user ID
export const getAttendanceByUser = async (req, res) => {
  try {
    const userId = req.user._id;

    const attendance = await Attendance.findOne({
      userId,
    }).populate("userId", "name email");

    if (!attendance) {
      return res.status(404).json({
        success: false,
        message: "No attendance records found for this user.",
      });
    }

    res.status(200).json({
      success: true,
      attendance,
    });
  } catch (error) {
    res.status(500).json({
      success: false,
      message: error.message || "Something went wrong",
    });
  }
};

// Admin route to get attendance by user ID
export const AdmingetAttendanceByUser = async (req, res) => {
  try {
    const { id } = req.params;
    const { page = 1, show = 10 } = req.query;
    const limit = parseInt(show);
    const skip = (page - 1) * limit;

    // Find attendance records for the given user
    const attendanceDoc = await Attendance.findOne({
      userId: id,
    }).populate("userId", "name email");

    if (!attendanceDoc) {
      return res.status(404).json({
        success: false,
        message: "No attendance records found for this user.",
      });
    }

    // Pagination and slicing records
    const totalData = attendanceDoc.records.length;
    const paginatedRecords = attendanceDoc.records.slice(skip, skip + limit);

    res.status(200).json({
      success: true,
      user: attendanceDoc.userId,
      attendance: paginatedRecords,
      total_data: totalData,
    });
  } catch (error) {
    res.status(500).json({
      success: false,
      message: error.message || "Something went wrong",
    });
  }
};

// Get today's attendance for admin
export const getTodayAttendance = async (req, res) => {
  try {
    const today = new Date();
    today.setHours(0, 0, 0, 0);

    const startOfDay = new Date(today);
    const endOfDay = new Date(today);
    endOfDay.setHours(23, 59, 59, 999);

    const { page = 1, show = 10 } = req.query;
    const limit = parseInt(show);
    const skip = (page - 1) * limit;

    const attendances = await Attendance.aggregate([
      { $unwind: '$records' },
      {
        $match: {
          'records.date': { $gte: startOfDay, $lte: endOfDay }
        }
      },
      {
        $lookup: {
          from: 'users',
          localField: 'userId',
          foreignField: '_id',
          as: 'user'
        }
      },
      { $unwind: '$user' },
      {
        $facet: {
          totalData: [{ $count: 'count' }],
          attendance: [
            { $skip: skip },
            { $limit: limit },
            {
              $project: {
                user: {
                  id: '$user._id',
                  name: '$user.name',
                  email: '$user.email',
                  userType: '$userType'
                },
                date: '$records.date',
                time: '$records.time',
                location: '$records.location',
                notes: '$records.notes',
              }
            }
          ]
        }
      }
    ]);

    const totalData = attendances[0].totalData[0]?.count || 0;

    res.status(200).json({
      success: true,
      total_data: totalData,
      attendance: attendances[0].attendance
    });
  } catch (error) {
    res.status(500).json({
      success: false,
      message: error.message || "Something went wrong",
    });
  }
};