package com.taf.attendance

import android.view.LayoutInflater
import android.view.ViewGroup
import androidx.recyclerview.widget.DiffUtil
import androidx.recyclerview.widget.ListAdapter
import androidx.recyclerview.widget.RecyclerView
import com.taf.attendance.databinding.ItemLeaveRequestBinding
import com.taf.attendance.model.LeaveRequest

class LeaveRequestAdapter : ListAdapter<LeaveRequest, LeaveRequestAdapter.LeaveRequestViewHolder>(LeaveRequestDiffCallback()) {

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): LeaveRequestViewHolder {
        val binding = ItemLeaveRequestBinding.inflate(
            LayoutInflater.from(parent.context),
            parent,
            false
        )
        return LeaveRequestViewHolder(binding)
    }

    override fun onBindViewHolder(holder: LeaveRequestViewHolder, position: Int) {
        holder.bind(getItem(position))
    }

    class LeaveRequestViewHolder(private val binding: ItemLeaveRequestBinding) : RecyclerView.ViewHolder(binding.root) {
        fun bind(leaveRequest: LeaveRequest) {
            binding.leaveRequest = leaveRequest
            // Set status color based on status
            val statusColor = when (leaveRequest.status) {
                "Approved" -> android.graphics.Color.GREEN
                "Rejected" -> android.graphics.Color.RED
                "Pending" -> android.graphics.Color.YELLOW
                else -> android.graphics.Color.GRAY
            }
            binding.textViewStatus.setBackgroundColor(statusColor)
            binding.executePendingBindings()
        }
    }
}

class LeaveRequestDiffCallback : DiffUtil.ItemCallback<LeaveRequest>() {
    override fun areItemsTheSame(oldItem: LeaveRequest, newItem: LeaveRequest): Boolean {
        return oldItem.id == newItem.id
    }

    override fun areContentsTheSame(oldItem: LeaveRequest, newItem: LeaveRequest): Boolean {
        return oldItem == newItem
    }
}