// app/api/rigs/route.ts
import { NextResponse } from "next/server";
import { dxGET, dxPOST, dxDELETE } from "@/lib/directus";
import { requireBearer } from "@/app/api/_lib/auth";

export const runtime = "nodejs";

function bad(msg: string, code = 400) {
    return NextResponse.json({ error: msg }, { status: code });
}

export async function GET(req: Request) {
    try {
        const bearer = requireBearer(req);
        const me = await dxGET<{ id: string }>("/users/me?fields=id", bearer);

        const q = new URL(req.url).searchParams;
        const limit = Math.min(parseInt(q.get("limit") || "50", 10), 100);
        const debug = q.get("debug") === "1";

        const fields = [
            "id",
            "name",
            "notes",
            "rig_type.id",
            "rig_type.name",
            "laser_source.submission_id",
            "laser_source.make",
            "laser_source.model",
            "laser_scan_lens.id",
            "laser_scan_lens.field_size",
            "laser_scan_lens.focal_length",
            "laser_focus_lens.id",
            "laser_focus_lens.name",
            "laser_software.id",
            "laser_software.name",
            "date_created",
            "date_updated",
            // Add owner.id in case we need to inspect it in debug payloads
            "owner.id"
        ].join(",");

        const base =
        `/items/user_rigs` +
        `?fields=${encodeURIComponent(fields)}` +
        `&sort=-date_updated` +
        `&limit=${limit}`;

        const attempts = [
            { label: "owner.id", path: `${base}&filter[owner][id][_eq]=${encodeURIComponent(me.id)}` },
            { label: "owner",    path: `${base}&filter[owner][_eq]=${encodeURIComponent(me.id)}` },
        ];

        let picked: { label: string; path: string } | null = null;
        let rows: any[] = [];

        for (const a of attempts) {
            try {
                const r = await dxGET<any[]>(a.path, bearer); // dxGET returns unwrapped `data`
                if (Array.isArray(r) && r.length > 0) {
                    picked = a;
                    rows = r;
                    break;
                }
                // Keep the emptiest result in case both return [], so we can still respond
                if (!picked) {
                    picked = a;
                    rows = Array.isArray(r) ? r : [];
                }
            } catch {
                // ignore and try next attempt
            }
        }

        if (debug) {
            // In debug mode, include meta so you can see what's happening directly in the browser
            return NextResponse.json({
                meta: {
                    me: me.id,
                    picked: picked?.label,
                    attempts: await Promise.all(
                        attempts.map(async (a) => {
                            try {
                                const r = await dxGET<any[]>(a.path, bearer);
                                return { label: a.label, count: Array.isArray(r) ? r.length : 0 };
                            } catch (e: any) {
                                return { label: a.label, error: String(e?.message || e) };
                            }
                        })
                    ),
                },
                data: rows,
            });
        }

        return NextResponse.json(rows ?? []);
    } catch (e: any) {
        return bad(e?.message || "Failed to load rigs", e?.status || 500);
    }
}

export async function POST(req: Request) {
    try {
        const bearer = requireBearer(req);
        const body = await req.json().catch(() => ({}));

        const name = (body?.name || "").trim();
        const rig_type = body?.rig_type;         // id
        const laser_source = body?.laser_source; // submission_id
        const laser_scan_lens = body?.laser_scan_lens || null;
        const laser_focus_lens = body?.laser_focus_lens || null;
        const laser_software = body?.laser_software || null;
        const notes = (body?.notes || "").trim();

        if (!name) return bad("Missing: name");
        if (!rig_type) return bad("Missing: rig_type");
        if (!laser_source) return bad("Missing: laser_source");

        // set owner from the authenticated user
        const me = await dxGET<{ id: string }>("/users/me?fields=id", bearer);

        const payload: any = {
            owner: me.id,
            name,
            rig_type,
            laser_source,
            laser_scan_lens,
            laser_focus_lens,
            laser_software,
            notes,
        };

        const res = await dxPOST<{ data: { id: string } }>(
            "/items/user_rigs",
            bearer,
            payload
        );

        return NextResponse.json({ ok: true, id: String(res?.data?.id) });
    } catch (e: any) {
        return bad(e?.message || "Failed to create rig", e?.status || 500);
    }
}

export async function DELETE(req: Request) {
    try {
        const bearer = requireBearer(req);
        const url = new URL(req.url);
        const id = url.searchParams.get("id");
        if (!id) return bad("Missing: id");

        // Ensure the rig belongs to the current user (owner.id for precision)
        const me = await dxGET<{ id: string }>("/users/me?fields=id", bearer);
        const rig = await dxGET<{ id: string; owner?: { id?: string } }>(
            `/items/user_rigs/${encodeURIComponent(id)}?fields=id,owner.id`,
                                                                         bearer
        );
        if (!rig || String(rig.owner?.id) !== String(me.id)) {
            return bad("Not your rig", 403);
        }

        await dxDELETE(`/items/user_rigs/${encodeURIComponent(id)}`, bearer);
        return NextResponse.json({ ok: true });
    } catch (e: any) {
        return bad(e?.message || "Failed to delete rig", e?.status || 500);
    }
}