clinicpro/assets/admin/components/InsuranceModal.tsx

import { useEffect, useState } from 'react';
import Modal from './ui/Modal';
import SearchableSelect from './ui/SearchableSelect';
import PersianDateInput from './ui/PersianDateInput';
import { isoToUnix, rialToToman, tomanToRial, unixToIso } from '../lib/utils';
import { digitsOnly } from '../lib/utils';
import type { ServiceCategoryOption } from '../hooks/useServiceCategories';

export interface InsuranceOption {
  insurance_id: number;
  insurance_name: string;
  type: string;
  /** درصدهای پیش‌فرض تنظیمات مرکزی ادمین به تفکیک نوع خدمت. */
  coverage_defaults?: Record<string, number>;
}

export interface Contract {
  uuid: string;
  insurance_id: number;
  insurance_name: string | null;
  insurance_kind: string | null;
  version: number;
  is_active: boolean;
  coverage_percent: number;
  franchise_rials: number;
  annual_ceiling_rials: number | null;
  kind: string | null;
  effective_from: number;
  effective_to: number | null;
  /** درصد مؤثر هر نوع خدمت (override قرارداد یا پیش‌فرض مرکزی). */
  category_coverages?: Record<string, number>;
  /** منبع هر درصد: `override` | `admin_default` | `contract`. */
  category_coverage_source?: Record<string, string>;
}

export interface InsuranceFormValues {
  insuranceId: string;
  kind: string;
  effectiveFrom: string; // Y-m-d
  effectiveTo: string;   // Y-m-d
  /** درصد پوشش به ازای هر نوع خدمت — کلید = key همان category. */
  categoryPercents: Record<string, string>;
  franchise: string;     // toman
  ceiling: string;       // toman
}

export const KIND_LABEL: Record<string, string> = {
  basic: 'پایه',
  supplementary: 'تکمیلی',
};

export const SOURCE_ADMIN_DEFAULT = 'admin_default';

export const EMPTY_FORM: InsuranceFormValues = {
  insuranceId: '', kind: 'basic', effectiveFrom: '', effectiveTo: '',
  categoryPercents: {}, franchise: '', ceiling: '',
};

/** Map a contract to editable form values (rials → toman, unix → Y-m-d). */
export function contractToForm(c: Contract): InsuranceFormValues {
  return {
    insuranceId: String(c.insurance_id),
    kind: c.kind ?? c.insurance_kind ?? 'basic',
    effectiveFrom: unixToIso(c.effective_from),
    effectiveTo: unixToIso(c.effective_to),
    categoryPercents: percentsToStrings(c.category_coverages),
    franchise: c.franchise_rials != null ? String(rialToToman(c.franchise_rials)) : '',
    ceiling: c.annual_ceiling_rials != null ? String(rialToToman(c.annual_ceiling_rials)) : '',
  };
}

function percentsToStrings(map?: Record<string, number>): Record<string, string> {
  return Object.fromEntries(Object.entries(map ?? {}).map(([k, v]) => [k, String(v)]));
}

/**
 * Build the API payload from form values (toman → rials, Y-m-d → unix).
 * When `doctorUuid` is set, the contract is targeted at that doctor (multi-doctor
 * clinic); otherwise it falls back to the caller's own tenant on the backend.
 *
 * `category_coverages` is only sent when the user may override percentages — the
 * backend rejects it otherwise, and omitting it keeps the contract on the central
 * admin defaults. فرانشیز فقط در قرارداد تکمیلی معنا دارد.
 */
export function buildInsurancePayload(
  v: InsuranceFormValues,
  doctorUuid?: string | null,
  includeCategoryCoverages = true,
) {
  const isBasic = v.kind !== 'supplementary';
  const percents = Object.entries(v.categoryPercents);

  return {
    insurance_id: Number(v.insuranceId),
    kind: v.kind || null,
    // ستون قدیمی قرارداد؛ آخرین سطح fallback است و با درصد سرپایی همگام می‌ماند.
    coverage_percent: Number(v.categoryPercents.outpatient ?? percents[0]?.[1] ?? 0) || 0,
    franchise_rials: isBasic ? 0 : tomanToRial(Number(v.franchise) || 0),
    annual_ceiling_rials: v.ceiling === '' ? null : tomanToRial(Number(v.ceiling)),
    effective_from: isoToUnix(v.effectiveFrom),
    effective_to: isoToUnix(v.effectiveTo),
    ...(includeCategoryCoverages
      ? { category_coverages: percents.map(([key, percent]) => ({ key, coverage_percent: Number(percent) || 0 })) }
      : {}),
    ...(doctorUuid ? { doctor_uuid: doctorUuid } : {}),
  };
}

interface Props {
  open: boolean;
  editContract: Contract | null;
  /** Insurance catalog options; in edit mode all are shown, in add mode only the available ones. */
  options: InsuranceOption[];
  /** انواع خدمت از سرور — یک ورودی درصد به ازای هر نوع رندر می‌شود. */
  categories: ServiceCategoryOption[];
  /** Insurance kind of the active tab ('basic'|'supplementary'); assigned to new contracts, not user-editable. */
  kind: string;
  /** Target doctor in a multi-doctor clinic; threaded into the payload as `doctor_uuid`. */
  doctorUuid?: string | null;
  /** بدون این مجوز، درصدها فقط خواندنی‌اند و اصلاً ارسال نمی‌شوند. */
  canUpdate?: boolean;
  onClose: () => void;
  onSubmit: (payload: ReturnType<typeof buildInsurancePayload>) => void;
  isPending?: boolean;
}

/**
 * Add/edit insurance contract modal (افزودن/ویرایش بیمه). Presentational: owns form
 * state, emits the built payload via onSubmit. درصدهای پوشش به تفکیک نوع خدمت و
 * پیش‌فرض‌گرفته از تنظیمات مرکزی ادمین.
 */
export default function InsuranceModal({
  open, editContract, options, categories, kind, doctorUuid, canUpdate = true,
  onClose, onSubmit, isPending,
}: Props) {
  const [form, setForm] = useState<InsuranceFormValues>(EMPTY_FORM);

  useEffect(() => {
    if (!open) return;
    setForm(editContract ? contractToForm(editContract) : { ...EMPTY_FORM, kind });
  }, [open, editContract, kind]);

  const set = (patch: Partial<InsuranceFormValues>) => setForm((f) => ({ ...f, ...patch }));
  const isEdit = editContract !== null;

  // در حالت افزودن، انتخاب بیمه درصدها را از تنظیمات مرکزی همان بیمه پر می‌کند.
  const pickInsurance = (value: string) => {
    const picked = options.find((i) => String(i.insurance_id) === value);
    set({
      insuranceId: value,
      categoryPercents: value === '' ? {} : percentsToStrings(picked?.coverage_defaults),
    });
  };

  const setPercent = (key: string, raw: string) =>
    setForm((f) => ({ ...f, categoryPercents: { ...f.categoryPercents, [key]: digitsOnly(raw, 3) } }));

  const submit = () => {
    if (!form.insuranceId) return;
    onSubmit(buildInsurancePayload(form, doctorUuid, canUpdate));
  };

  const field = { display: 'flex', flexDirection: 'column' as const, gap: 6 };
  const label = { fontSize: 12, fontWeight: 600, color: 'var(--text-2)' };
  const isBasic = form.kind !== 'supplementary';
  const sourceOf = (key: string) => editContract?.category_coverage_source?.[key];

  return (
    <Modal
      open={open}
      title={isEdit ? 'ویرایش بیمه' : 'افزودن بیمه'}
      size="md"
      onClose={onClose}
      footer={
        <>
          <button type="button" className="btn ghost" onClick={onClose}>لغو</button>
          <button
            type="button"
            className="btn primary"
            disabled={!form.insuranceId || isPending}
            onClick={submit}
          >
            {isPending ? '...' : 'ثبت بیمه'}
          </button>
        </>
      }
    >
      <div style={{ display: 'flex', flexDirection: 'column', gap: 14 }}>
        <div style={field}>
          <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', gap: 8 }}>
            <label style={label}>نام بیمه</label>
            <span style={{
              fontSize: 11, fontWeight: 600, padding: '2px 10px', borderRadius: 'var(--r-pill)',
              background: 'var(--primary-soft)', color: 'var(--primary)',
            }}>
              {KIND_LABEL[form.kind] ?? form.kind}
            </span>
          </div>
          <SearchableSelect
            options={options.map((i) => ({ value: String(i.insurance_id), label: i.insurance_name }))}
            value={form.insuranceId}
            onChange={(v) => pickInsurance(v ? String(v) : '')}
            isDisabled={isEdit}
            placeholder="انتخاب کنید..."
          />
        </div>

        <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 12 }}>
          <div style={field}>
            <label style={label}>تاریخ شروع قرارداد</label>
            <PersianDateInput value={form.effectiveFrom} onChange={(v) => set({ effectiveFrom: v })} placeholder="انتخاب" />
          </div>
          <div style={field}>
            <label style={label}>تاریخ پایان قرارداد</label>
            <PersianDateInput value={form.effectiveTo} onChange={(v) => set({ effectiveTo: v })} placeholder="انتخاب" />
          </div>
        </div>

        <div style={{ display: 'grid', gridTemplateColumns: `repeat(${Math.max(1, categories.length)}, 1fr)`, gap: 12 }}>
          {categories.map((c) => (
            <div key={c.key} style={field}>
              <label style={label}>درصد پوشش — {c.label}</label>
              <input
                type="text"
                inputMode="numeric"
                dir="ltr"
                className="input"
                readOnly={!canUpdate}
                aria-label={`درصد پوشش ${c.label}`}
                value={form.categoryPercents[c.key] ?? ''}
                onChange={(e) => setPercent(c.key, e.target.value)}
              />
              <span style={{ fontSize: 11, color: 'var(--text-3)' }}>
                {!canUpdate
                  ? 'مقدار پیش‌فرض تنظیمات مرکزی'
                  : sourceOf(c.key) === SOURCE_ADMIN_DEFAULT
                    ? 'پیش‌فرض ادمین'
                    : ' '}
              </span>
            </div>
          ))}
        </div>

        <div style={{ display: 'grid', gridTemplateColumns: isBasic ? '1fr' : '1fr 1fr', gap: 12 }}>
          {!isBasic && (
            <div style={field}>
              <label style={label}>فرانشیز (تومان)</label>
              <input type="text" inputMode="numeric" dir="ltr" className="input" value={form.franchise} onChange={(e) => set({ franchise: digitsOnly(e.target.value) })} />
            </div>
          )}
          <div style={field}>
            <label style={label}>سقف تعهد (تومان)</label>
            <input type="text" inputMode="numeric" dir="ltr" className="input" placeholder="بی‌نهایت" value={form.ceiling} onChange={(e) => set({ ceiling: digitsOnly(e.target.value) })} />
          </div>
        </div>
      </div>
    </Modal>
  );
}