// components/forms/SettingsSubmit.tsx
"use client";

import { useEffect, useMemo, useState } from "react";
import { useForm, useFieldArray, type UseFormRegister } from "react-hook-form";
import { useRouter, useSearchParams } from "next/navigation";

/** CO₂ Galvo implementation only (per spec). Other targets intentionally omitted. */
type Target = "settings_co2gal";
// Accept any of the known targets from callers (e.g., SettingsSwitcher),
// but we still hard-lock behavior to CO₂ Galvo internally.
type ExternalTarget = "settings_fiber" | "settings_co2gan" | "settings_co2gal" | "settings_uv";

type Opt = { id: string; label: string };
type Me = { id: string; username?: string; email?: string };

const API = (process.env.NEXT_PUBLIC_API_BASE_URL || "").replace(/\/$/, "");

/* ─────────────────────────────────────────────────────────────
 *   Local enums (simple, stable lists that UI controls use)
 *   ───────────────────────────────────────────────────────────── */
const FILL_TYPE_OPTIONS = [
  { label: "UniDirectional", value: "uni" },
{ label: "BiDirectional", value: "bi" },
{ label: "Offset Fill", value: "offset" },
];
const RASTER_TYPE_OPTIONS = [
  { label: "UniDirectional", value: "uni" },
{ label: "BiDirectional", value: "bi" },
{ label: "Offset Fill", value: "offset" },
];
const RASTER_DITHER_OPTIONS = [
  { label: "Threshold", value: "threshold" },
{ label: "Ordered", value: "ordered" },
{ label: "Atkinson", value: "atkinson" },
{ label: "Dither", value: "dither" },
{ label: "Stucki", value: "stucki" },
{ label: "Jarvis", value: "jarvis" },
{ label: "Newsprint", value: "newsprint" },
{ label: "Halftone", value: "halftone" },
{ label: "Sketch", value: "sketch" },
{ label: "Grayscale", value: "grayscale" },
];

const toOpts = (arr: { label: string; value: string }[]): Opt[] =>
arr.map((x) => ({ id: x.value, label: x.label }));

/* ─────────────────────────────────────────────────────────────
 *   Edit-mode initial values
 *   ───────────────────────────────────────────────────────────── */
type EditInitialValues = {
  submission_id: string | number;

  setting_title?: string;
  setting_notes?: string;

  photo?: string | { id?: string } | null;
  screen?: string | { id?: string } | null;

  /* material / optics */
  mat?: any;
  mat_coat?: any;
  mat_color?: any;
  mat_opacity?: any;
  mat_thickness?: number | null;

  source?: any;
  lens?: any;
  focus?: number | null;

  /* dropdown relations (CO₂ Galvo) */
  lens_conf?: any; // laser_scan_lens_config (Lens Configuration)
  lens_apt?: any;  // laser_scan_lens_apt (Scan Head Aperture)
  lens_exp?: any;  // laser_scan_lens_exp (Beam Expander)

  /* shared */
  laser_soft?: any;
  repeat_all?: number | null;

  /* repeaters */
  fill_settings?: any[] | null;
  line_settings?: any[] | null;
  raster_settings?: any[] | null;
};

type BaseProps = { initialTarget?: ExternalTarget };
type CreateProps = BaseProps & { mode?: "create"; submissionId?: never; initialValues?: never };
type EditProps = BaseProps & { mode: "edit"; submissionId: string | number; initialValues: EditInitialValues };
function isEditProps(p: CreateProps | EditProps): p is EditProps {
  return (p as any)?.mode === "edit";
}

/* ─────────────────────────────────────────────────────────────
 *   Helpers
 *   ───────────────────────────────────────────────────────────── */
function idToString(v: any): string {
  if (v == null || v === "") return "";
  if (typeof v === "object") {
    if ((v as any).id != null) return String((v as any).id);
    if ((v as any).submission_id != null) return String((v as any).submission_id);
  }
  return String(v);
}

function normalizeEnums(value: any, allowed: string[], fallback: string) {
  const v = value == null ? "" : String(value).toLowerCase();
  return allowed.includes(v) ? v : fallback;
}

function normalizeForReset(iv: EditInitialValues) {
  return {
    ...iv,
    mat: idToString(iv.mat),
    mat_coat: idToString(iv.mat_coat),
    mat_color: idToString(iv.mat_color),
    mat_opacity: idToString(iv.mat_opacity),
    source: idToString(iv.source),
    lens: idToString(iv.lens),
    laser_soft: idToString(iv.laser_soft),
    lens_conf: idToString(iv.lens_conf),
    lens_apt: idToString(iv.lens_apt),
    lens_exp: idToString(iv.lens_exp),
    fill_settings: (iv.fill_settings ?? []).map((r: any) => ({ ...r, type: normalizeEnums(r?.type, ["uni", "bi", "offset"], "uni") })),
    raster_settings: (iv.raster_settings ?? []).map((r: any) => ({
      ...r,
      type: normalizeEnums(r?.type, ["uni", "bi", "offset"], "uni"),
                                                                 dither: normalizeEnums(
                                                                   r?.dither,
                                                                   ["threshold", "ordered", "atkinson", "dither", "stucki", "jarvis", "newsprint", "halftone", "sketch", "grayscale"],
                                                                   "threshold"
                                                                 ),
    })),
    line_settings: (iv.line_settings ?? []).map((r: any) => ({ ...r })),
  };
}

/* ─────────────────────────────────────────────────────────────
 *   Options loader (Materials, Software, Source, Lens + fixed lens lists)
 *   ───────────────────────────────────────────────────────────── */
function useOptions(path: string, forceIncludeId?: string) {
  const [opts, setOpts] = useState<Opt[]>([]);
  const [loading, setLoading] = useState(false);
  const [q, setQ] = useState("");

  useEffect(() => {
    let alive = true;
    setLoading(true);

    (async () => {
      let url = "";
      let normalize: (rows: any[]) => Opt[] = (rows) =>
      rows.map((r) => ({ id: String(r.id ?? r.submission_id ?? r.value), label: String(r.name ?? r.label ?? r.title ?? r.value ?? r.id) }));

      if (path === "material") url = `${API}/items/material?fields=id,name&limit=1000&sort=name`;
      else if (path === "material_color") url = `${API}/items/material_color?fields=id,name&limit=1000&sort=name`;
      else if (path === "material_coating") url = `${API}/items/material_coating?fields=id,name&limit=1000&sort=name`;
      else if (path === "material_opacity") {
        url = `${API}/items/material_opacity?fields=id,opacity&limit=1000&sort=opacity`;
        normalize = (rows) => rows.map((r) => ({ id: String(r.id), label: String(r.opacity ?? r.id) }));
      } else if (path === "laser_software") {
        url = `${API}/items/laser_software?fields=id,name&limit=1000&sort=name`;
      } else if (path === "laser_source_co2_galvo") {
        // Only show CO₂-range sources (10,000–11,000 nm) to match galvo
        url = `${API}/items/laser_source?fields=submission_id,make,model,nm&limit=2000&sort=make,model`;
        normalize = (rows) => {
          const toNum = (v: any): number | null => {
            const m = String(v ?? "").match(/-?\d+(\.\d+)?/);
            return m ? Number(m[0]) : null;
          };
          return rows
          .filter((r: any) => {
            const nm = toNum(r.nm);
            return nm != null && nm >= 10000 && nm <= 11000;
          })
          .map((r: any) => ({
            id: String(r.submission_id),
                            label: [r.make, r.model].filter(Boolean).join(" ") || String(r.submission_id),
          }));
        };
      } else if (path === "laser_scan_lens") {
        url = `${API}/items/laser_scan_lens?fields=id,field_size,focal_length&limit=1000`;
        normalize = (rows) => {
          const toNum = (v: any) => {
            const m = String(v ?? "").match(/-?\d+(\.\d+)?/);
            return m ? parseFloat(m[0]) : Number.POSITIVE_INFINITY;
          };
          const sorted = [...rows].sort((a, b) => toNum(a.focal_length) - toNum(b.focal_length));
          return sorted.map((r) => {
            const fs = r.field_size != null ? `${r.field_size}` : "";
            const fl = r.focal_length != null ? `${r.focal_length}` : "";
            const composed = [fs && `${fs} mm`, fl && `${fl} mm`].filter(Boolean).join(" — ");
            return { id: String(r.id), label: composed || String(r.id) };
          });
        };
      } else if (path === "laser_scan_lens_config") {
        url = `${API}/items/laser_scan_lens_config?fields=id,name&limit=1000&sort=name`;
      } else if (path === "laser_scan_lens_apt") {
        url = `${API}/items/laser_scan_lens_apt?fields=id,name&limit=1000&sort=name`;
      } else if (path === "laser_scan_lens_exp") {
        url = `${API}/items/laser_scan_lens_exp?fields=id,name&limit=1000&sort=name`;
      } else {
        setOpts([]);
        setLoading(false);
        return;
      }

      const res = await fetch(url, { cache: "no-store", credentials: "include" });
      if (!res.ok) throw new Error(`Directus ${res.status} fetching ${url}`);
      const json = await res.json();
      const rows = json?.data ?? [];
      let mapped = normalize(rows);

      if (forceIncludeId && !mapped.some((o) => String(o.id) === String(forceIncludeId))) {
        mapped = [{ id: String(forceIncludeId), label: "(current selection)" }, ...mapped];
      }

      const needle = (q || "").trim().toLowerCase();
      const filtered = needle ? mapped.filter((o) => o.label.toLowerCase().includes(needle)) : mapped;
      if (alive) setOpts(filtered);
    })()
    .catch(() => setOpts([]))
    .finally(() => alive && setLoading(false));

    return () => {
      alive = false;
    };
  }, [path, q, forceIncludeId]);

  return { opts, loading, setQ };
}

/* ─────────────────────────────────────────────────────────────
 *   Small UI bits
 *   ───────────────────────────────────────────────────────────── */
function FilterableSelect({
  label,
  name,
  register,
  options,
  loading,
  onQuery,
  placeholder = "—",
  required = false,
}: {
  label: string;
  name: string;
  register: UseFormRegister<any>;
  options: Opt[];
  loading?: boolean;
  onQuery?: (q: string) => void;
  placeholder?: string;
  required?: boolean;
}) {
  const [filter, setFilter] = useState("");
  useEffect(() => { onQuery?.(filter); }, [filter, onQuery]);

  const filtered = useMemo(() => {
    if (!filter) return options;
    const f = filter.toLowerCase();
    return options.filter((o) => o.label.toLowerCase().includes(f));
  }, [options, filter]);

  return (
    <div>
    <label className="block text-sm mb-1">
    {label} {required ? <span className="text-red-600">*</span> : null}
    </label>
    <input
    className="w-full border rounded px-2 py-1 mb-1"
    placeholder="Type to filter…"
    value={filter}
    onChange={(e) => setFilter(e.target.value)}
    />
    <select className="w-full border rounded px-2 py-1" {...register(name, { required })}>
    <option value="">{placeholder}{loading ? " (loading…)" : ""}</option>
    {filtered.map((o) => (
      <option key={o.id} value={o.id}>{o.label}</option>
    ))}
    </select>
    </div>
  );
}

function BoolBox({ label, name, register }: { label: string; name: string; register: UseFormRegister<any> }) {
  return (
    <label className="flex items-center gap-1 text-sm">
    <input type="checkbox" {...register(name)} /> {label}
    </label>
  );
}

function LabeledInput({
  label,
  name,
  type = "text",
  step,
  register,
  required = false,
  min,
  max,
}: {
  label: string;
  name: string;
  type?: "text" | "number";
  step?: string | number;
  register: UseFormRegister<any>;
  required?: boolean;
  min?: number;
  max?: number;
}) {
  return (
    <div>
    <label className="block text-xs mb-1">
    {label}{required ? " *" : ""}
    </label>
    <input
    type={type}
    step={step}
    min={min}
    max={max}
    className="w-full border rounded px-2 py-1"
    {...register(name, { required })}
    />
    </div>
  );
}

/* ─────────────────────────────────────────────────────────────
 *   Component (CO₂ Galvo only)
 *   ───────────────────────────────────────────────────────────── */
export default function SettingsSubmit(props: CreateProps | EditProps) {
  const router = useRouter();
  const sp = useSearchParams();

  const isEdit = isEditProps(props);
  const edit = isEdit ? props : null;

  // CO₂ Galvo is the only target in this implementation.
  const target: Target = "settings_co2gal";

  // Image inputs
  const [photoFile, setPhotoFile] = useState<File | null>(null);
  const [screenFile, setScreenFile] = useState<File | null>(null);
  const [photoPreview, setPhotoPreview] = useState<string>("");
  const [screenPreview, setScreenPreview] = useState<string>("");

  // UX error for auth/submit
  const [submitErr, setSubmitErr] = useState<string | null>(null);

  // Current signed-in user (banner + uploader)
  const [me, setMe] = useState<Me | null>(null);
  const [meErr, setMeErr] = useState<string | null>(null);

  useEffect(() => {
    let alive = true;
    fetch(`/api/me`, { cache: "no-store", credentials: "include" })
    .then((r) => (r.ok ? r.json() : Promise.reject(r)))
    .then((j) => { if (!alive) return; setMe(j || null); })
    .catch(() => { if (alive) setMeErr("not-signed-in"); });
    return () => { alive = false; };
  }, []);

  const meLabel = me?.username ?? me?.email ?? "";

  // For edit-mode, compute normalized current values once
  const current = useMemo(
    () => (isEdit && edit?.initialValues ? normalizeForReset(edit.initialValues) : null),
                          [isEdit, edit?.initialValues]
  );

  // Options (CO₂ Galvo)
  const mats  = useOptions("material", current?.mat || undefined);
  const coats = useOptions("material_coating", current?.mat_coat || undefined);
  const colors= useOptions("material_color", current?.mat_color || undefined);
  const opacs = useOptions("material_opacity", current?.mat_opacity || undefined);
  const soft  = useOptions("laser_software", current?.laser_soft || undefined);
  const srcs  = useOptions("laser_source_co2_galvo", current?.source || undefined);
  const lens  = useOptions("laser_scan_lens", current?.lens || undefined);

  // Fixed lists (server-backed)
  const lensConf = useOptions("laser_scan_lens_config", current?.lens_conf || undefined); // Lens Configuration
  const lensApt  = useOptions("laser_scan_lens_apt",    current?.lens_apt  || undefined); // Scan Head Aperture
  const lensExp  = useOptions("laser_scan_lens_exp",    current?.lens_exp  || undefined); // Beam Expander

  // Repeater choice options (local)
  const fillType    = { opts: toOpts(FILL_TYPE_OPTIONS), loading: false, setQ: (_: string) => {} };
  const rasterType  = { opts: toOpts(RASTER_TYPE_OPTIONS), loading: false, setQ: (_: string) => {} };
  const rasterDither= { opts: toOpts(RASTER_DITHER_OPTIONS), loading: false, setQ: (_: string) => {} };

  const {
    register,
    handleSubmit,
    control,
    reset,
    setValue,
    getValues,
    formState: { isSubmitting },
  } = useForm<any>({
    defaultValues: {
      setting_title: "",
      setting_notes: "",

      // material / optics
      mat: "",
      mat_coat: "",
      mat_color: "",
      mat_opacity: "",
      mat_thickness: "",
      source: "",
      lens: "",
      focus: "",
      laser_soft: "",
      repeat_all: "",

      // CO₂ Galvo lens dropdowns
      lens_conf: "",
      lens_apt: "",
      lens_exp: "",

      // repeaters
      fill_settings: [],
      line_settings: [],
      raster_settings: [],
    },
  });

  const fills   = useFieldArray({ control, name: "fill_settings" });
  const lines   = useFieldArray({ control, name: "line_settings" });
  const rasters = useFieldArray({ control, name: "raster_settings" });

  // Prefill the form in edit mode
  useEffect(() => {
    if (isEdit && edit?.initialValues) {
      const iv = normalizeForReset(edit.initialValues);
      reset({
        setting_title: iv.setting_title ?? "",
        setting_notes: iv.setting_notes ?? "",
        photo: iv.photo ?? null,
        screen: iv.screen ?? null,

        mat: iv.mat ?? "",
        mat_coat: iv.mat_coat ?? "",
        mat_color: iv.mat_color ?? "",
        mat_opacity: iv.mat_opacity ?? "",
        mat_thickness: iv.mat_thickness ?? "",

        source: iv.source ?? "",
        lens: iv.lens ?? "",
        focus: iv.focus ?? "",

        laser_soft: iv.laser_soft ?? "",
        repeat_all: iv.repeat_all ?? "",

        lens_conf: iv.lens_conf ?? "",
        lens_apt: iv.lens_apt ?? "",
        lens_exp: iv.lens_exp ?? "",

        fill_settings: iv.fill_settings ?? [],
        line_settings: iv.line_settings ?? [],
        raster_settings: iv.raster_settings ?? [],
      });
    }
  }, [isEdit, edit?.initialValues, reset]);

  // After reset, force selects once to show current ids
  useEffect(() => {
    if (!isEdit || !current) return;
    const names = ["laser_soft","mat","mat_coat","mat_color","mat_opacity","source","lens","lens_conf","lens_apt","lens_exp"] as const;
    const values = getValues();
    names.forEach((name) => {
      const cur = (current as any)[name];
      const now = (values as any)[name];
      if (cur && (now == null || now === "")) {
        setValue(name as any, cur, { shouldDirty: false, shouldValidate: false });
      }
    });
  }, [isEdit, current, getValues, setValue, mats.opts, coats.opts, colors.opts, opacs.opts, soft.opts, srcs.opts, lens.opts, lensConf.opts, lensApt.opts, lensExp.opts]);

  function num(v: any) { return v === "" || v == null ? null : Number(v); }
  const bool = (v: any) => !!v;

  /* ─────────────────────────────────────────────────────────────
   *     SUBMIT (multipart + payload JSON). CO₂ Galvo requireds enforced server-side,
   *     but we mark client-required for UX.
   *     ───────────────────────────────────────────────────────────── */
  async function onSubmit(values: any) {
    setSubmitErr(null);

    // In create mode, require either existing id (not present here) or a fresh file.
    const hasExistingPhotoId = isEdit && typeof edit!.initialValues?.photo === "string" && !!edit!.initialValues.photo;
    if (!hasExistingPhotoId && !photoFile) {
      (document.querySelector('input[type="file"][data-role="photo"]') as HTMLInputElement | null)?.focus();
      return;
    }

    const payload: any = {
      target, // "settings_co2gal"
      ...(isEdit ? { mode: "edit" as const, submission_id: edit!.submissionId } : {}),

      /* required basics */
      setting_title: values.setting_title,
      setting_notes: values.setting_notes || "",

      /* material / optics */
      mat: values.mat || null,
      mat_coat: values.mat_coat || null,
      mat_color: values.mat_color || null,
      mat_opacity: values.mat_opacity || null,
      mat_thickness: num(values.mat_thickness),

      source: values.source || null,
      lens: values.lens || null,
      focus: num(values.focus),

      /* CO₂-only dropdowns */
      lens_conf: values.lens_conf || null, // Lens Configuration
      lens_apt: values.lens_apt || null,   // Scan Head Aperture
      lens_exp: values.lens_exp || null,   // Beam Expander

      /* shared */
      laser_soft: values.laser_soft || null,
      repeat_all: num(values.repeat_all),

      /* repeaters */
      fill_settings: (values.fill_settings || []).map((r: any) => ({
        name: r.name || "",
        power: num(r.power),
                                                                   speed: num(r.speed),
                                                                   interval: num(r.interval),
                                                                   pass: num(r.pass),
                                                                   type: r.type || "",
                                                                   frequency: num(r.frequency),
                                                                   pulse: num(r.pulse),
                                                                   angle: num(r.angle),
                                                                   auto: bool(r.auto),
                                                                   increment: num(r.increment),
                                                                   cross: bool(r.cross),
                                                                   flood: bool(r.flood),
                                                                   air: bool(r.air),
      })),
      line_settings: (values.line_settings || []).map((r: any) => ({
        name: r.name || "",
        power: num(r.power),
                                                                   speed: num(r.speed),
                                                                   perf: bool(r.perf),
                                                                   cut: bool(r.cut),
                                                                   skip: bool(r.skip),
                                                                   pass: num(r.pass),
                                                                   air: bool(r.air),
                                                                   frequency: num(r.frequency),
                                                                   pulse: num(r.pulse),
                                                                   wobble: bool(r.wobble),
                                                                   step: num(r.step),
                                                                   size: num(r.size),
      })),
      raster_settings: (values.raster_settings || []).map((r: any) => ({
        name: r.name || "",
        power: num(r.power),
                                                                       speed: num(r.speed),
                                                                       type: r.type || "",
                                                                       dither: r.dither || "",
                                                                       halftone_cell: num(r.halftone_cell),
                                                                       halftone_angle: num(r.halftone_angle),
                                                                       inversion: bool(r.inversion),
                                                                       interval: num(r.interval),
                                                                       dot: num(r.dot),
                                                                       pass: num(r.pass),
                                                                       air: bool(r.air),
                                                                       frequency: num(r.frequency),
                                                                       pulse: num(r.pulse),
                                                                       cross: bool(r.cross),
      })),
    };

    try {
      const form = new FormData();
      form.set("payload", JSON.stringify(payload));
      if (photoFile) form.set("photo", photoFile, photoFile.name || "photo");
      if (screenFile) form.set("screen", screenFile, screenFile.name || "screen");

      const res = await fetch("/api/submit/settings", { method: "POST", body: form, credentials: "include" });
      const data = await res.json().catch(() => ({}));
      if (!res.ok) {
        if (res.status === 401 || res.status === 403) throw new Error("You must be signed in to submit settings.");
        throw new Error(data?.error || "Submission failed");
      }

      if (!isEdit) {
        reset();
        setPhotoFile(null);
        setScreenFile(null);
        setPhotoPreview("");
        setScreenPreview("");
      }

      const id = (data as any)?.id ? String((data as any).id) : String(edit?.submissionId ?? "");
      if (isEdit) {
        const q = new URLSearchParams(sp.toString());
        q.delete("edit");
        router.replace(`/portal/laser-settings?${q.toString()}`);
      } else {
        router.push(`/submit/settings/success?target=${encodeURIComponent(target)}&id=${encodeURIComponent(id)}`);
      }
    } catch (e: any) {
      setSubmitErr(e?.message || "Submission failed");
    }
  }

  function onPick(file: File | null, setFile: (f: File | null) => void, setPreview: (s: string) => void) {
    setFile(file);
    if (!file) { setPreview(""); return; }
    const reader = new FileReader();
    reader.onload = () => setPreview(String(reader.result || ""));
    reader.readAsDataURL(file);
  }

  const currentPhotoId = isEdit && typeof edit?.initialValues?.photo === "string" ? (edit!.initialValues.photo as string) : null;
  const currentScreenId = isEdit && typeof edit?.initialValues?.screen === "string" ? (edit!.initialValues.screen as string) : null;

  /* ─────────────────────────────────────────────────────────────
   *     RENDER: Sectioned form (CO₂ Galvo)
   *     ───────────────────────────────────────────────────────────── */
  return (
    <div className="max-w-3xl mx-auto space-y-5">
    {/* Header */}
    <header className="space-y-1">
    <h1 className="text-xl lg:text-2xl font-semibold">{isEdit ? "Edit CO₂ Galvo Setting" : "Submit CO₂ Galvo Setting"}</h1>
    {me ? (
      <div className="text-sm text-muted-foreground">
      Submitting as <span className="font-medium">{meLabel}</span>.
      </div>
    ) : meErr ? (
      <div className="border border-yellow-600 bg-yellow-50 text-yellow-800 rounded p-2 text-sm">
      You’re not signed in. Submissions will fail until you sign in.
      </div>
    ) : null}
    {submitErr ? <div className="border border-red-500 text-red-600 bg-red-50 rounded p-2 text-sm">{submitErr}</div> : null}
    </header>

    <form onSubmit={handleSubmit(onSubmit)} className="space-y-6">
    {/* Section: Overview */}
    <section className="space-y-3">
    <h2 className="text-lg font-semibold">Overview</h2>
    <div className="grid gap-3">
    <div>
    <label className="block text-sm mb-1">Title <span className="text-red-600">*</span></label>
    <input className="w-full border rounded px-2 py-1" {...register("setting_title", { required: true })} />
    </div>
    <div>
    <label className="block text-sm mb-1">Notes</label>
    <textarea rows={4} className="w-full border rounded px-2 py-1" {...register("setting_notes")} />
    </div>
    </div>
    </section>

    {/* Section: Images */}
    <section className="space-y-3">
    <h2 className="text-lg font-semibold">Images</h2>
    <div className="grid md:grid-cols-2 gap-4">
    <div>
    <label className="block text-sm mb-1">
    Result Photo {!currentPhotoId ? <span className="text-red-600">*</span> : null}
    </label>
    {currentPhotoId ? (
      <p className="text-xs text-muted-foreground mb-1">Current: <span className="font-mono">{currentPhotoId}</span></p>
    ) : null}
    <input
    type="file"
    accept="image/*"
    data-role="photo"
    required={!currentPhotoId && !photoFile}
    onChange={(e) => onPick(e.target.files?.[0] ?? null, setPhotoFile, setPhotoPreview)}
    />
    <p className="text-xs text-muted-foreground mt-1">
    {photoFile ? <>Selected: <span className="font-mono">{photoFile.name}</span></> : "Max 25 MB. JPG/PNG/WebP recommended."}
    </p>
    {photoPreview ? <img src={photoPreview} alt="Result preview" className="mt-2 rounded border" /> : null}
    </div>
    <div>
    <label className="block text-sm mb-1">Settings Screenshot (optional)</label>
    {currentScreenId ? (
      <p className="text-xs text-muted-foreground mb-1">Current: <span className="font-mono">{currentScreenId}</span></p>
    ) : null}
    <input
    type="file"
    accept="image/*"
    onChange={(e) => onPick(e.target.files?.[0] ?? null, setScreenFile, setScreenPreview)}
    />
    <p className="text-xs text-muted-foreground mt-1">
    {screenFile ? <>Selected: <span className="font-mono">{screenFile.name}</span></> : "Max 25 MB. JPG/PNG/WebP recommended."}
    </p>
    {screenPreview ? <img src={screenPreview} alt="Settings preview" className="mt-2 rounded border" /> : null}
    </div>
    </div>
    </section>

    {/* Section: Material */}
    <section className="space-y-3">
    <h2 className="text-lg font-semibold">Material</h2>
    <div className="grid md:grid-cols-2 gap-3">
    <FilterableSelect label="Material" name="mat" register={register} options={mats.opts} loading={mats.loading} onQuery={mats.setQ} required />
    <FilterableSelect label="Coating" name="mat_coat" register={register} options={coats.opts} loading={coats.loading} onQuery={coats.setQ} required />
    <FilterableSelect label="Color" name="mat_color" register={register} options={colors.opts} loading={colors.loading} onQuery={colors.setQ} required />
    <FilterableSelect label="Opacity" name="mat_opacity" register={register} options={opacs.opts} loading={opacs.loading} onQuery={opacs.setQ} required />
    <LabeledInput label="Material Thickness (mm)" name="mat_thickness" type="number" step="0.01" register={register} />
    </div>
    </section>

    {/* Section: Optics */}
    <section className="space-y-3">
    <h2 className="text-lg font-semibold">Optics</h2>
    <div className="grid md:grid-cols-2 gap-3">
    <FilterableSelect label="Software" name="laser_soft" register={register} options={soft.opts} loading={soft.loading} onQuery={soft.setQ} required />
    <FilterableSelect label="Laser Source" name="source" register={register} options={srcs.opts} loading={srcs.loading} onQuery={srcs.setQ} required />
    <FilterableSelect label="Scan Lens" name="lens" register={register} options={lens.opts} loading={lens.loading} onQuery={lens.setQ} required />
    </div>
    <div className="grid md:grid-cols-3 gap-3">
    <LabeledInput label="Focus (mm)" name="focus" type="number" min={-10} max={10} step="1" register={register} required />
    <LabeledInput label="Repeat All" name="repeat_all" type="number" step="1" register={register} required />
    </div>
    <p className="text-xs text-muted-foreground">0 = in focus. Negative = closer. Positive = further.</p>
    </section>

    {/* Section: Lens Options (CO₂ Galvo fixed lists) */}
    <section className="space-y-3">
    <h2 className="text-lg font-semibold">Lens Options</h2>
    <div className="grid md:grid-cols-3 gap-3">
    <FilterableSelect
    label="Lens Configuration"
    name="lens_conf"
    register={register}
    options={lensConf.opts}
    loading={lensConf.loading}
    onQuery={lensConf.setQ}
    required
    />
    <FilterableSelect
    label="Scan Head Aperture"
    name="lens_apt"
    register={register}
    options={lensApt.opts}
    loading={lensApt.loading}
    onQuery={lensApt.setQ}
    required
    />
    <FilterableSelect
    label="Beam Expander"
    name="lens_exp"
    register={register}
    options={lensExp.opts}
    loading={lensExp.loading}
    onQuery={lensExp.setQ}
    required
    />
    </div>
    </section>

    {/* Section: Process Settings */}
    <section className="space-y-4">
    <h2 className="text-lg font-semibold">Process Settings</h2>

    {/* FILL */}
    <fieldset className="border rounded p-3 space-y-2">
    <div className="flex items-center justify-between">
    <legend className="font-semibold">Fill</legend>
    <button type="button" className="px-2 py-1 border rounded" onClick={() => fills.append({ type: "uni" })}>+ Add</button>
    </div>
    {fills.fields.map((f, i) => (
      <div key={f.id} className="grid md:grid-cols-4 gap-2">
      <LabeledInput label="Name" name={`fill_settings.${i}.name`} register={register} />
      <FilterableSelect label="Type" name={`fill_settings.${i}.type`} register={register} options={fillType.opts} loading={false} onQuery={() => {}} placeholder="Select type" />
      <LabeledInput label="Frequency (kHz)" name={`fill_settings.${i}.frequency`} type="number" step="0.1" register={register} />
      <LabeledInput label="Pulse (ns)" name={`fill_settings.${i}.pulse`} type="number" step="0.1" register={register} />
      <LabeledInput label="Power (%)" name={`fill_settings.${i}.power`} type="number" step="0.1" register={register} />
      <LabeledInput label="Speed (mm/s)" name={`fill_settings.${i}.speed`} type="number" step="0.1" register={register} />
      <LabeledInput label="Interval (mm)" name={`fill_settings.${i}.interval`} type="number" step="0.001" register={register} />
      <LabeledInput label="Pass" name={`fill_settings.${i}.pass`} type="number" step="1" register={register} />
      <LabeledInput label="Angle (°)" name={`fill_settings.${i}.angle`} type="number" step="1" register={register} />
      <LabeledInput label="Increment" name={`fill_settings.${i}.increment`} type="number" step="0.001" register={register} />
      <div className="flex items-center gap-3">
      <BoolBox label="Auto" name={`fill_settings.${i}.auto`} register={register} />
      <BoolBox label="Cross" name={`fill_settings.${i}.cross`} register={register} />
      </div>
      <div className="flex items-center gap-3">
      <BoolBox label="Flood" name={`fill_settings.${i}.flood`} register={register} />
      <BoolBox label="Air" name={`fill_settings.${i}.air`} register={register} />
      </div>
      <button type="button" className="px-2 py-1 border rounded md:col-span-4" onClick={() => fills.remove(i)}>Remove</button>
      </div>
    ))}
    </fieldset>

    {/* LINE */}
    <fieldset className="border rounded p-3 space-y-2">
    <div className="flex items-center justify-between">
    <legend className="font-semibold">Line</legend>
    <button type="button" className="px-2 py-1 border rounded" onClick={() => lines.append({})}>+ Add</button>
    </div>
    {lines.fields.map((f, i) => (
      <div key={f.id} className="grid md:grid-cols-4 gap-2">
      <LabeledInput label="Name" name={`line_settings.${i}.name`} register={register} />
      <LabeledInput label="Frequency (kHz)" name={`line_settings.${i}.frequency`} type="number" step="0.1" register={register} />
      <LabeledInput label="Pulse (ns)" name={`line_settings.${i}.pulse`} type="number" step="0.1" register={register} />
      <LabeledInput label="Power (%)" name={`line_settings.${i}.power`} type="number" step="0.1" register={register} />
      <LabeledInput label="Speed (mm/s)" name={`line_settings.${i}.speed`} type="number" step="0.1" register={register} />
      <BoolBox label="Perf" name={`line_settings.${i}.perf`} register={register} />
      <BoolBox label="Cut" name={`line_settings.${i}.cut`} register={register} />
      <BoolBox label="Skip" name={`line_settings.${i}.skip`} register={register} />
      <LabeledInput label="Pass" name={`line_settings.${i}.pass`} type="number" step="1" register={register} />
      <LabeledInput label="Step" name={`line_settings.${i}.step`} type="number" step="0.001" register={register} />
      <LabeledInput label="Size" name={`line_settings.${i}.size`} type="number" step="0.001" register={register} />
      <BoolBox label="Wobble" name={`line_settings.${i}.wobble`} register={register} />
      <BoolBox label="Air" name={`line_settings.${i}.air`} register={register} />
      <button type="button" className="px-2 py-1 border rounded md:col-span-4" onClick={() => lines.remove(i)}>Remove</button>
      </div>
    ))}
    </fieldset>

    {/* RASTER */}
    <fieldset className="border rounded p-3 space-y-2">
    <div className="flex items-center justify-between">
    <legend className="font-semibold">Raster</legend>
    <button type="button" className="px-2 py-1 border rounded" onClick={() => rasters.append({ type: "uni", dither: "threshold" })}>+ Add</button>
    </div>
    {rasters.fields.map((f, i) => (
      <div key={f.id} className="grid md:grid-cols-4 gap-2">
      <LabeledInput label="Name" name={`raster_settings.${i}.name`} register={register} />
      <LabeledInput label="Frequency (kHz)" name={`raster_settings.${i}.frequency`} type="number" step="0.1" register={register} />
      <LabeledInput label="Pulse (ns)" name={`raster_settings.${i}.pulse`} type="number" step="0.1" register={register} />
      <FilterableSelect label="Type" name={`raster_settings.${i}.type`} register={register} options={rasterType.opts} loading={false} onQuery={() => {}} placeholder="Select type" />
      <FilterableSelect label="Dither" name={`raster_settings.${i}.dither`} register={register} options={rasterDither.opts} loading={false} onQuery={() => {}} placeholder="Select dither" />
      <LabeledInput label="Power (%)" name={`raster_settings.${i}.power`} type="number" step="0.1" register={register} />
      <LabeledInput label="Speed (mm/s)" name={`raster_settings.${i}.speed`} type="number" step="0.1" register={register} />
      <LabeledInput label="Halftone Cell" name={`raster_settings.${i}.halftone_cell`} type="number" step="1" register={register} />
      <LabeledInput label="Halftone Angle" name={`raster_settings.${i}.halftone_angle`} type="number" step="1" register={register} />
      <LabeledInput label="Interval (mm)" name={`raster_settings.${i}.interval`} type="number" step="0.001" register={register} />
      <LabeledInput label="Dot" name={`raster_settings.${i}.dot`} type="number" step="0.1" register={register} />
      <LabeledInput label="Pass" name={`raster_settings.${i}.pass`} type="number" step="1" register={register} />
      <BoolBox label="Cross" name={`raster_settings.${i}.cross`} register={register} />
      <div className="flex items-center gap-3">
      <BoolBox label="Inversion" name={`raster_settings.${i}.inversion`} register={register} />
      <BoolBox label="Air" name={`raster_settings.${i}.air`} register={register} />
      </div>
      <button type="button" className="px-2 py-1 border rounded md:col-span-4" onClick={() => rasters.remove(i)}>Remove</button>
      </div>
    ))}
    </fieldset>
    </section>

    <button disabled={isSubmitting} className="px-3 py-2 border rounded bg-accent text-background hover:opacity-90 disabled:opacity-50">
    {isSubmitting ? "Submitting…" : isEdit ? "Save Changes" : "Submit Settings"}
    </button>
    </form>
    </div>
  );
}