import { RoleEmploymentFields } from "@/components/employees/RoleEmploymentFields";
import type { PaygradeType } from "@/lib/supabase/types";
import type { HireDraftData } from "./types";

const PAYGRADES: { value: PaygradeType; label: string; description: string }[] = [
  { value: "A", label: "A – Einstieg", description: "Berufseinsteiger:innen ohne einschlägige Erfahrung" },
  { value: "B", label: "B – Qualifiziert", description: "Fachkräfte mit abgeschlossener Ausbildung" },
  { value: "C", label: "C – Erfahren", description: "Mehrjährige einschlägige Berufserfahrung" },
  { value: "D", label: "D – Spezialist:in", description: "Vertiefte Fachexpertise" },
  { value: "E", label: "E – Teamleitung", description: "Fachliche und disziplinäre Führung eines Teams" },
  { value: "F", label: "F – Bereichsleitung / GF", description: "Führung eines Bereichs bzw. Geschäftsführung" },
];

export function StepVertrag({ draft, update }: { draft: HireDraftData; update: (patch: Partial<HireDraftData>) => void }) {
  function handleEmploymentTypeChange(value: HireDraftData["employmentType"]) {
    update({
      employmentType: value,
      weeklyHours: value === "Vollzeit" ? "38.5" : draft.weeklyHours === "38.5" ? "20" : draft.weeklyHours,
    });
  }

  return (
    <div className="flex flex-col gap-4">
      <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
        <div>
          <label className="mb-1 block text-sm font-semibold text-ink">Eintrittsdatum*</label>
          <input type="date" value={draft.entryDate} onChange={(e) => update({ entryDate: e.target.value })} className="w-full rounded border border-border px-3 py-2 text-sm" />
        </div>
        <div>
          <label className="mb-1 block text-sm font-semibold text-ink">Vertragsart</label>
          <select
            value={draft.contractType}
            onChange={(e) => update({ contractType: e.target.value as HireDraftData["contractType"] })}
            className="w-full rounded border border-border px-3 py-2 text-sm"
          >
            <option value="unbefristet">unbefristet</option>
            <option value="befristet">befristet</option>
          </select>
        </div>
      </div>
      {draft.contractType === "befristet" && (
        <div>
          <label className="mb-1 block text-sm font-semibold text-ink">Befristet bis*</label>
          <input
            type="date"
            value={draft.contractEndDate}
            onChange={(e) => update({ contractEndDate: e.target.value })}
            className="w-full rounded border border-border px-3 py-2 text-sm"
          />
        </div>
      )}
      <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
        <div>
          <label className="mb-1 block text-sm font-semibold text-ink">Beschäftigungsausmaß</label>
          <select
            value={draft.employmentType}
            onChange={(e) => handleEmploymentTypeChange(e.target.value as HireDraftData["employmentType"])}
            className="w-full rounded border border-border px-3 py-2 text-sm"
          >
            <option value="Vollzeit">Vollzeit</option>
            <option value="Teilzeit">Teilzeit</option>
          </select>
        </div>
        <div>
          <label className="mb-1 block text-sm font-semibold text-ink">Wochenstunden</label>
          <input
            type="number"
            step="0.5"
            value={draft.weeklyHours}
            disabled={draft.employmentType === "Vollzeit"}
            onChange={(e) => update({ weeklyHours: e.target.value })}
            className="w-full rounded border border-border px-3 py-2 text-sm disabled:bg-surface disabled:text-ink-muted"
          />
        </div>
      </div>
      <div>
        <label className="mb-1 block text-sm font-semibold text-ink">Paygrade*</label>
        <select
          value={draft.paygrade}
          onChange={(e) => update({ paygrade: e.target.value as PaygradeType })}
          className="w-full rounded border border-border px-3 py-2 text-sm"
        >
          {PAYGRADES.map((p) => (
            <option key={p.value} value={p.value}>
              {p.label}
            </option>
          ))}
        </select>
        <p className="mt-1 text-xs text-ink-muted">{PAYGRADES.find((p) => p.value === draft.paygrade)?.description}</p>
      </div>
      <p className="text-xs text-ink-muted">Es gilt eine Probezeit von 1 Monat gemäß Kollektivvertrag.</p>

      <div>
        <h3 className="mb-3 text-sm font-bold text-ink">Rolle & Anstellung</h3>
        <RoleEmploymentFields value={draft} onChange={update} />
      </div>
    </div>
  );
}
