import { NextResponse } from "next/server"
import { auth } from "@/lib/auth"
import { employeeSchema } from "@/features/employees/schema"
import { deleteEmployee, getEmployeeById, updateEmployee } from "@/features/employees/service"
import { ZodError } from "zod"

export const runtime = "nodejs"

export async function GET(
  req: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const session = await auth()
    if (!session) {
      return NextResponse.json({ error: "Unauthorized" }, { status: 401 })
    }

    const { id } = await params
    const employee = await getEmployeeById(id)

    if (!employee) {
      return NextResponse.json({ error: "Employee not found" }, { status: 404 })
    }

    return NextResponse.json(employee)
  } catch (error) {
    console.error("Error fetching employee:", error)
    return NextResponse.json({ error: "Failed to fetch employee" }, { status: 500 })
  }
}

export async function PUT(
  req: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const session = await auth()
    if (!session) {
      return NextResponse.json({ error: "Unauthorized" }, { status: 401 })
    }

    const { id } = await params
    const body = await req.json()
    const validated = employeeSchema.parse(body)

    const employee = await updateEmployee(id, validated)
    return NextResponse.json(employee)
  } catch (error) {
    if (error instanceof ZodError) {
      return NextResponse.json(
        { error: "Validation failed", details: error.errors.map((e) => ({ path: e.path, message: e.message })) },
        { status: 400 }
      )
    }
    console.error("Error updating employee:", error)
    return NextResponse.json({ error: "Failed to update employee" }, { status: 500 })
  }
}

export async function DELETE(
  req: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const session = await auth()
    if (!session) {
      return NextResponse.json({ error: "Unauthorized" }, { status: 401 })
    }

    const { id } = await params
    await deleteEmployee(id)
    return NextResponse.json({ success: true })
  } catch (error) {
    console.error("Error deleting employee:", error)
    return NextResponse.json({ error: "Failed to delete employee" }, { status: 500 })
  }
}