"use client";

import { useEffect, useMemo, useState } from "react";
import { dxGet } from "./dx";

type Entry = {
    submission_id: string | number;
    brand?: string | null;
    model?: string | null;
    title?: string | null;
    price_min?: number | null;
    price_max?: number | null;
    laser_type?: string | null; // e.g., "CO2", "Diode", "Fiber" if present in your schema
    bed_size_x?: number | null;
    bed_size_y?: number | null;
};

export default function LaserFinderPanel() {
    const [q, setQ] = useState("");
    const [type, setType] = useState<string | "any">("any");
    const [budget, setBudget] = useState<number | null>(null);
    const [minBedX, setMinBedX] = useState<number | null>(null);
    const [minBedY, setMinBedY] = useState<number | null>(null);
    const [recs, setRecs] = useState<Entry[]>([]);
    const [loading, setLoading] = useState(false);

    const filter = useMemo(() => {
        const f: any = {};
        const ors: any[] = [];
        if (q.trim()) {
            ors.push({ brand: { _icontains: q } }, { model: { _icontains: q } }, { title: { _icontains: q } });
        }
        if (type !== "any") f.laser_type = { _eq: type };
        if (budget != null) {
            // either min/max under budget or range overlaps
            ors.push(
                { price_min: { _lte: budget } },
                { price_max: { _lte: budget } },
                { _and: [{ price_min: { _lte: budget } }, { price_max: { _gte: 1 } }] }
            );
        }
        if (minBedX != null) f.bed_size_x = { _gte: minBedX };
        if (minBedY != null) f.bed_size_y = { _gte: minBedY };
        if (ors.length) f._or = ors;
        return f;
    }, [q, type, budget, minBedX, minBedY]);

    useEffect(() => {
        (async () => {
            setLoading(true);
            try {
                const data = await dxGet<Entry[]>("items/bg_entries", {
                    fields: "submission_id,brand,model,title,price_min,price_max,laser_type,bed_size_x,bed_size_y",
                    filter: JSON.stringify(filter),
                                                  limit: 50,
                                                  sort: "price_min,brand,model",
                });
                setRecs(data);
            } finally {
                setLoading(false);
            }
        })();
    }, [filter]);

    return (
        <div className="space-y-4">
        <div className="flex flex-wrap gap-3 items-end">
        <div className="flex-1 min-w-[220px]">
        <label className="text-xs text-zinc-400 mb-1 block">Search</label>
        <input
        className="w-full rounded-md border bg-background px-3 py-1.5"
        placeholder="brand, model, title…"
        value={q}
        onChange={(e) => setQ(e.target.value)}
        />
        </div>

        <div className="flex flex-col">
        <label className="text-xs text-zinc-400 mb-1">Type</label>
        <select
        className="rounded-md border bg-background px-2 py-1"
        value={type}
        onChange={(e) => setType(e.target.value as any)}
        >
        <option value="any">Any</option>
        <option value="CO2">CO2</option>
        <option value="Diode">Diode</option>
        <option value="Fiber">Fiber</option>
        </select>
        </div>

        <div className="flex flex-col w-[140px]">
        <label className="text-xs text-zinc-400 mb-1">Budget (USD)</label>
        <input
        type="number"
        className="rounded-md border bg-background px-2 py-1"
        value={budget ?? ""}
        onChange={(e) => setBudget(e.target.value ? Number(e.target.value) : null)}
        />
        </div>

        <div className="flex flex-col w-[120px]">
        <label className="text-xs text-zinc-400 mb-1">Min Bed X (mm)</label>
        <input
        type="number"
        className="rounded-md border bg-background px-2 py-1"
        value={minBedX ?? ""}
        onChange={(e) => setMinBedX(e.target.value ? Number(e.target.value) : null)}
        />
        </div>
        <div className="flex flex-col w-[120px]">
        <label className="text-xs text-zinc-400 mb-1">Min Bed Y (mm)</label>
        <input
        type="number"
        className="rounded-md border bg-background px-2 py-1"
        value={minBedY ?? ""}
        onChange={(e) => setMinBedY(e.target.value ? Number(e.target.value) : null)}
        />
        </div>
        </div>

        {loading ? (
            <div className="text-sm text-zinc-400">Searching…</div>
        ) : recs.length === 0 ? (
            <div className="text-sm text-zinc-400">No matching lasers.</div>
        ) : (
            <div className="overflow-x-auto">
            <table className="w-full text-sm">
            <thead className="text-left text-zinc-400">
            <tr>
            <th className="py-1 pr-3 font-normal">Laser</th>
            <th className="py-1 pr-3 font-normal">Type</th>
            <th className="py-1 pr-3 font-normal">Bed (mm)</th>
            <th className="py-1 pr-3 font-normal">Price</th>
            <th className="py-1 pr-3 font-normal"></th>
            </tr>
            </thead>
            <tbody>
            {recs.map(r => (
                <tr key={r.submission_id} className="border-t">
                <td className="py-1 pr-3">{r.brand} {r.model || r.title}</td>
                <td className="py-1 pr-3">{r.laser_type || "—"}</td>
                <td className="py-1 pr-3">
                {(r.bed_size_x ?? "—")} × {(r.bed_size_y ?? "—")}
                </td>
                <td className="py-1 pr-3">
                {(r.price_min || r.price_max)
                    ? (r.price_min && r.price_max && r.price_min !== r.price_max
                    ? `$${r.price_min.toLocaleString()}–$${r.price_max.toLocaleString()}`
                    : `$${(r.price_min || r.price_max)!.toLocaleString()}`)
                    : "—"}
                    </td>
                    <td className="py-1 pr-3">
                    <a
                    className="underline"
                    href={`/buying-guide/${r.submission_id}`}
                    target="_blank"
                    rel="noopener noreferrer"
                    >
                    View
                    </a>
                    </td>
                    </tr>
            ))}
            </tbody>
            </table>
            </div>
        )}
        </div>
    );
}