<?php

namespace App\Http\Controllers\Web\Ekosistem;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\View\View;
use Illuminate\Support\Facades\Gate;
use Illuminate\Http\RedirectResponse;
use Illuminate\Validation\Rule;
use Illuminate\Http\JsonResponse;

use App\Models\Ekosistem\PetaniCPM;
use App\Models\Wilayah\Provinsi;
use App\Models\Pertanian\Komoditas;

use App\Enums\Pendidikan;
use App\Enums\Pekerjaan;
use App\Enums\Pernikahan;
use App\Enums\HubunganDalamKeluarga;

class PetaniCPMController extends Controller
{
    public function index(Request $request): View
    {
        if (!Gate::any(['super_admin', 'admin', 'fasilitator'])) {
            abort(403);
        }

        $perPage = $request->query('per_page', 10); 
        $search = strtolower($request->query('search', ''));

        $petani = PetaniCPM::when($search, function ($query, $search) {
                return $query->where('nama', 'like', "%{$search}%");
            })
            ->paginate($perPage);

        return view('ekosistem.petani-cpm.index', compact('petani'));
    }

    public function create(): View
    {
        if (!Gate::any(['super_admin', 'admin', 'fasilitator'])) {
            abort(403);
        }

        $pendidikan = Pendidikan::options();
        $pekerjaan = Pekerjaan::options();
        $pernikahan = Pernikahan::options();
        $statusKeluarga = HubunganDalamKeluarga::options();

        $provinsi = Provinsi::all();
        $komoditas = Komoditas::all();

        return view('ekosistem.petani-cpm.add', compact('pendidikan', 'pekerjaan', 
            'pernikahan', 'statusKeluarga', 'provinsi', 'komoditas'));
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request): RedirectResponse
    {
        if (!Gate::any(['super_admin', 'admin', 'fasilitator'])) {
            abort(403);
        }

        $validatedData = $request->validate([
            'nama' => ['required','string','max:255'],
            'jenis_kelamin' => ['required','boolean'],
            'tanggal_lahir' => ['required','date'],
            'pendidikan_terakhir' => ['required', Rule::enum(Pendidikan::class)],
            'alamat' => ['required','string','max:500'],
            'desa_kelurahan_id' => ['required','exists:master_desa_kelurahan,id'],
            'pekerjaan_utama' => ['required', Rule::enum(Pekerjaan::class)],
            'komoditas_id' => ['required','exists:master_komoditas,id'],
            'lama_bertani' => ['required','numeric','min:0'],
            'luas_lahan' => ['required','numeric','min:0'],
            'pekerjaan_sampingan' => ['nullable', Rule::enum(Pekerjaan::class)],
            'komoditas_sampingan_id' => ['nullable','exists:master_komoditas,id'],
            'lama_bertani_sampingan' => ['nullable','numeric','min:0'],
            'luas_lahan_sampingan' => ['nullable','numeric','min:0'],
            'status_perkawinan' => ['required', Rule::enum(Pernikahan::class)],
            'status_keluarga' => ['required', Rule::enum(HubunganDalamKeluarga::class)],
            'jumlah_tanggungan' => ['nullable','integer','min:0'],
            'petani_pengumpul' => ['nullable','array'],
            'petani_pengumpul.*' => ['in:petani,pengumpul'],
        ]);

        PetaniCPM::create([...$validatedData, 
            'created_by' => auth()->id(), 
            'updated_by' => auth()->id()]);

        return redirect()->route('petani-cpm.index')->with('success', 'Data petani CPM berhasil ditambahkan.');
    }

    /**
     * Display the specified resource.
     */
    public function show(string $id)
    {
        if (!Gate::any(['super_admin', 'admin', 'fasilitator'])) {
            abort(403);
        }

        $petani = PetaniCPM::findOrFail($id);

        return view('ekosistem.petani-cpm.view', compact('petani'));
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(string $id)
    {
        if (!Gate::any(['super_admin', 'admin', 'fasilitator'])) {
            abort(403);
        }

        $petani = PetaniCPM::findOrFail($id);

        $pendidikan = Pendidikan::options();
        $pekerjaan = Pekerjaan::options();
        $pernikahan = Pernikahan::options();
        $statusKeluarga = HubunganDalamKeluarga::options();

        $provinsi = Provinsi::all();
        $komoditas = Komoditas::all();

        return view('ekosistem.petani-cpm.edit', compact('petani', 'pendidikan', 'pekerjaan', 
            'pernikahan', 'statusKeluarga', 'provinsi', 'komoditas'));
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, string $id)
    {
        if (!Gate::any(['super_admin', 'admin', 'fasilitator'])) {
            abort(403);
        }

        $petani = PetaniCPM::findOrFail($id);

        $validatedData = $request->validate([
            'nama' => ['required','string','max:255'],
            'jenis_kelamin' => ['required','boolean'],
            'tanggal_lahir' => ['required','date'],
            'pendidikan_terakhir' => ['required', Rule::enum(Pendidikan::class)],
            'alamat' => ['required','string','max:500'],
            'desa_kelurahan_id' => ['required','exists:master_desa_kelurahan,id'],
            'pekerjaan_utama' => ['required', Rule::enum(Pekerjaan::class)],
            'komoditas_id' => ['required','exists:master_komoditas,id'],
            'lama_bertani' => ['required','numeric','min:0'],
            'luas_lahan' => ['required','numeric','min:0'],
            'pekerjaan_sampingan' => ['nullable', Rule::enum(Pekerjaan::class)],
            'komoditas_sampingan_id' => ['nullable','exists:master_komoditas,id'],
            'lama_bertani_sampingan' => ['nullable','numeric','min:0'],
            'luas_lahan_sampingan' => ['nullable','numeric','min:0'],
            'status_perkawinan' => ['required', Rule::enum(Pernikahan::class)],
            'status_keluarga' => ['required', Rule::enum(HubunganDalamKeluarga::class)],
            'jumlah_tanggungan' => ['nullable','integer','min:0'],
            'petani_pengumpul' => ['nullable','array'],
            'petani_pengumpul.*' => ['in:petani,pengumpul'],
        ]);

        $petani->update([...$validatedData, 
            'updated_by' => auth()->id()]);

        return redirect()->route('petani-cpm.index')->with('success', 'Data petani CPM berhasil diperbarui.');
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(string $id)
    {
        if (!Gate::any(['super_admin', 'admin', 'fasilitator'])) {
            abort(403);
        }

        $petani = PetaniCPM::findOrFail($id);
        $petani->update(['deleted_by' => auth()->id()]);
        $petani->delete();

        return redirect()->route('petani-cpm.index')->with('success', 'Data petani CPM berhasil dihapus.');
    }

    public function summary(string $tipe): JsonResponse
    {
        switch ($tipe) {
            case 'jenis_kelamin':
                return $this->calculateJenisKelamin();
            case 'usia':
                return $this->calculateUsia();
            case 'pendidikan':
                return $this->calculatePendidikan();
        }

        return response()->json([
            'petani' => PetaniCPM::count(),
            'pengumpul' => PetaniCPM::where('petani_pengumpul', 'pengumpul')->count(),
            'petani' => PetaniCPM::where('petani_pengumpul', 'petani')->count(),
        ]);
    }

    private function calculateJenisKelamin()
    {
        $petaniBase = PetaniCPM::query();

        return response()->json([
            'total' => (clone $petaniBase)->count(),
            'laki_laki' => (clone $petaniBase)->where('jenis_kelamin', 1)->count(),
            'perempuan' => (clone $petaniBase)->where('jenis_kelamin', 0)->count(),
        ]);
    }

    private function calculateUsia()
    {
        $petaniBase = PetaniCPM::query();

        $usiaRataRata = (clone $petaniBase)
            ->selectRaw('AVG(EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir))) as avg')
            ->value('avg');
        $usiaMayoritas = (clone $petaniBase)
            ->selectRaw("
                CASE
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 0 AND 4 THEN '0-4'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 5 AND 9 THEN '5-9'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 10 AND 14 THEN '10-14'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 15 AND 19 THEN '15-19'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 20 AND 24 THEN '20-24'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 25 AND 29 THEN '25-29'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 30 AND 34 THEN '30-34'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 35 AND 39 THEN '35-39'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 40 AND 44 THEN '40-44'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 45 AND 49 THEN '45-49'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 50 AND 54 THEN '50-54'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 55 AND 59 THEN '55-59'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 60 AND 64 THEN '60-64'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 65 AND 69 THEN '65-69'
                    WHEN EXTRACT(YEAR FROM AGE(CURRENT_DATE, tanggal_lahir)) BETWEEN 70 AND 74 THEN '70-74'
                    ELSE '75+'
                END as kelompok_usia
            ")
            ->groupBy('kelompok_usia')
            ->orderByRaw('COUNT(*) DESC')
            ->value('kelompok_usia');

        return response()->json([
            'usia_rata_rata' => $usiaRataRata ? round($usiaRataRata, 1) : 0,
            'usia_mayoritas' => $usiaMayoritas ?? '-',
        ]);
    }

    private function calculatePendidikan()
    {
        $petaniBase = PetaniCPM::query();

        $mayoritasValue = (clone $petaniBase)
            ->selectRaw('pendidikan_terakhir, COUNT(*) as total')
            ->groupBy('pendidikan_terakhir')
            ->orderByDesc('total')
            ->orderByDesc('pendidikan_terakhir')
            ->value('pendidikan_terakhir');

        $tertinggiValue = (clone $petaniBase)
            ->whereNotNull('pendidikan_terakhir')
            ->orderByDesc('pendidikan_terakhir') // karena ada prefix angka
            ->value('pendidikan_terakhir');

        $mayoritasLabel = $mayoritasValue?->label() ?? '-';
        $tertinggiLabel = $tertinggiValue?->label() ?? '-';

        return response()->json([
            'pendidikan_mayoritas' => $mayoritasLabel,
            'pendidikan_tertinggi' => $tertinggiLabel,
        ]);
    }
}