"use client"

import { ResourcePage } from "@/shared/data-view/resource-page"
import { ColumnHeader } from "@/shared/data-view/table-view"
import FormDialog from "@/shared/components/form-dialog"
import { PayrollRunForm } from "@/modules/payroll/payroll-run-form"
import { PAYROLL_ROUTES } from "@garage/api"
import type { PayrollClient } from "@garage/api"
import { Badge } from "@/shared/components/ui/badge"
import { useRouter } from "next/navigation"
import { formatEnum } from "@/shared/utils/formatters"

type RunRow = {
    id: number
    reference?: string | null
    period_start?: string
    period_end?: string
    status: string
    entries_count?: number
    generated_at?: string | null
    finalized_at?: string | null
    paid_at?: string | null
}

function formatDate(value: unknown) {
    if (!value || typeof value !== "string") return "—"
    const d = new Date(value)
    return Number.isNaN(d.getTime()) ? value : d.toLocaleDateString()
}

function statusVariant(status: string): "default" | "secondary" | "outline" {
    if (status === "paid") return "default"
    if (status === "finalized") return "outline"
    return "secondary"
}

export default function PayrollPage() {
    const router = useRouter()

    return (
        <ResourcePage<PayrollClient>
            pageTitle="Payroll"
            routeKey={PAYROLL_ROUTES.RUNS_INDEX}
            getClient={(api) => api.payroll}
            statusFilter={{
                statuses: ["draft", "finalized", "paid"],
                paramKey: "status",
            }}
            onRowClick={(row) => router.push(`/productivity/payroll/${(row as any).id}`)}
            headerProps={({ invalidateQuery }) => ({
                actions: (
                    <FormDialog title="Payroll Run">
                        {() => (
                            <PayrollRunForm
                                onSuccess={(runId) => {
                                    invalidateQuery()
                                    if (runId) router.push(`/productivity/payroll/${runId}`)
                                }}
                            />
                        )}
                    </FormDialog>
                ),
            })}
            columns={({ actionsColumn }) => [
                {
                    accessorKey: "reference",
                    header: ({ column }) => <ColumnHeader column={column} title="Reference" />,
                    cell: ({ row }) => <span className="font-mono text-xs">{(row.original as any).reference ?? `#${(row.original as any).id}`}</span>,
                },
                {
                    accessorKey: "period_start",
                    header: ({ column }) => <ColumnHeader column={column} title="Period Start" />,
                    cell: ({ row }) => formatDate((row.original as any).period_start),
                },
                {
                    accessorKey: "period_end",
                    header: ({ column }) => <ColumnHeader column={column} title="Period End" />,
                    cell: ({ row }) => formatDate((row.original as any).period_end),
                },
                {
                    accessorKey: "entries_count",
                    header: ({ column }) => <ColumnHeader column={column} title="Entries" />,
                    cell: ({ row }) => (row.original as any).entries_count ?? "—",
                },
                {
                    accessorKey: "status",
                    header: ({ column }) => <ColumnHeader column={column} title="Status" />,
                    cell: ({ row }) => {
                        const s = (row.original as any).status as string
                        return <Badge variant={statusVariant(s)}>{formatEnum(s)}</Badge>
                    },
                },
                {
                    accessorKey: "finalized_at",
                    header: ({ column }) => <ColumnHeader column={column} title="Finalized" />,
                    cell: ({ row }) => formatDate((row.original as any).finalized_at),
                },
                actionsColumn({ onEdit: undefined }),
            ]}
        />
    )
}