<?php

namespace App\Http\Controllers\Web\Dashboard;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\Profile;
use App\Models\Wilayah\Provinsi;
use App\Models\wilayah\KabupatenKota;
use App\Models\Wilayah\Kecamatan;
use App\Models\Wilayah\DesaKelurahan;
use App\Models\Pertanian\Lahan;
use Illuminate\Support\Facades\Gate;

class SummaryController extends Controller
{
    public function index()
    {
        if (!Gate::allows('super_admin') && !Gate::allows('admin')) {
            abort(403);
        }
        $title = 'Summary Dashboard';
        return view('dashboard.summary', compact('title'));
    }

    public function produktivitas(Request $request)
    {
        if (!Gate::allows('super_admin') && !Gate::allows('admin') && !Gate::allows('fasilitator')) {
        abort(403);
        }
        
        $title          = 'Produktivitas Dashboard';
        $luasTotal      = Lahan::whereNotNull('path')->sum('luas_lahan');
        $totalpetani    = Profile::where('role', 'petani')->count();
        $totallahan     = Lahan::whereNotNull('path')->count();
        
        $petaniList = Profile::select('id', 'nama', 'role', 'desa_kelurahan_id')
            ->where('role', 'petani')
            ->with([
                'lahan:id,profile_id,luas_lahan',
                'desaKelurahan:id,nama,kecamatan_id',
            ])
            ->paginate(20);

        $lahanSummaryByDesa = Lahan::whereNotNull('path')
            ->whereNotNull('desa_kelurahan_id')
            ->select('desa_kelurahan_id')
            ->selectRaw('COUNT(*) as total_lahan')
            ->selectRaw('COALESCE(SUM(luas_lahan), 0) as total_luas')
            ->groupBy('desa_kelurahan_id')
            ->get();

        $desaList = DesaKelurahan::select('id', 'nama', 'path', 'kecamatan_id')
            ->whereIn('id', $lahanSummaryByDesa->pluck('desa_kelurahan_id')->filter()->unique()->values())
            ->with([
                'kecamatan:id,nama,path,kabupaten_kota_id',
                'kecamatan.kabupatenKota:id,nama,path,provinsi_id',
                'kecamatan.kabupatenKota.provinsi:id,nama,path',
            ])
            ->get()
            ->keyBy('id');

        $mapLahanLimit = min(max((int) $request->integer('map_lahan_limit', 500), 0), 2000);
        $mapLahan = Lahan::whereNotNull('path')
            ->select('id', 'profile_id', 'desa_kelurahan_id', 'path', 'luas_lahan')
            ->with([
                'profile:id,nama',
                'tanaman:id,lahan_id,komoditas_id',
                'tanaman.komoditas:id,nama',
            ])
            ->orderByDesc('updated_at')
            ->limit($mapLahanLimit)
            ->get();

        $geoProvinsi    = [];
        $geoKabupaten   = [];
        $geoKecamatan   = [];
        $geoDesa        = [];
        $geoLahan       = [];

        foreach ($lahanSummaryByDesa as $summary) {
            $desa   = $desaList->get($summary->desa_kelurahan_id);
            $kec    = $desa ? $desa->kecamatan : null;
            $kab    = $kec ? $kec->kabupatenKota : null;
            $prov   = $kab ? $kab->provinsi : null;
            $totalLahan = (int) $summary->total_lahan;
            $totalLuas = (float) $summary->total_luas;

            if ($prov && $prov->path) {
                if (!isset($geoProvinsi[$prov->id])) {
                    $geoProvinsi[$prov->id] = ['id' => $prov->id, 'nama' => $prov->nama, 'polygon' => $prov->path, 'total_lahan' => 0, 'total_luas' => 0];
                }
                $geoProvinsi[$prov->id]['total_lahan'] += $totalLahan;
                $geoProvinsi[$prov->id]['total_luas'] += $totalLuas;
            }

            if ($kab && $kab->path) {
                if (!isset($geoKabupaten[$kab->id])) {
                    $geoKabupaten[$kab->id] = ['id' => $kab->id, 'parent_id' => $prov->id ?? null, 'nama' => $kab->nama, 'polygon' => $kab->path, 'total_lahan' => 0, 'total_luas' => 0];
                }
                $geoKabupaten[$kab->id]['total_lahan'] += $totalLahan;
                $geoKabupaten[$kab->id]['total_luas'] += $totalLuas;
            }

            if ($kec && $kec->path) {
                if (!isset($geoKecamatan[$kec->id])) {
                    $geoKecamatan[$kec->id] = ['id' => $kec->id, 'parent_id' => $kab->id ?? null, 'nama' => $kec->nama, 'polygon' => $kec->path, 'total_lahan' => 0, 'total_luas' => 0];
                }
                $geoKecamatan[$kec->id]['total_lahan'] += $totalLahan;
                $geoKecamatan[$kec->id]['total_luas'] += $totalLuas;
            }
            
            if ($desa && $desa->path) {
                if (!isset($geoDesa[$desa->id])) {
                    $geoDesa[$desa->id] = ['id' => $desa->id, 'parent_id' => $kec->id ?? null, 'nama' => $desa->nama, 'polygon' => $desa->path, 'total_lahan' => 0, 'total_luas' => 0];
                }
                $geoDesa[$desa->id]['total_lahan'] += $totalLahan;
                $geoDesa[$desa->id]['total_luas'] += $totalLuas;
            }
        }

        foreach ($mapLahan as $lahan) {
            $geoLahan[] = [
                'id'            => $lahan->id,
                'parent_id'     => $lahan->desa_kelurahan_id,
                'polygon'       => $lahan->path,
                'nama_petani'   => $lahan->profile->nama ?? 'N/A',
                'luas'          => $lahan->luas_lahan,
                'tanaman'       => $lahan->tanaman->map(fn($t) => $t->komoditas->nama ?? null)->filter()->unique()->values()
            ];
        }

        return view('dashboard.produktivitas', [
            'title' => $title,
            'petaniList'    => $petaniList,
            'totalpetani'   => $totalpetani,
            'totallahan'    => $totallahan,
            'luasTotal'     => $luasTotal,
            'geoProvinsi'   => array_values($geoProvinsi),
            'geoKabupaten'  => array_values($geoKabupaten),
            'geoKecamatan'  => array_values($geoKecamatan),
            'geoDesa'       => array_values($geoDesa),
            'geoLahan'      => $geoLahan
        ]);
    }
}