<?php

namespace App\Services;

use App\Models\Opportunity;
use Illuminate\Support\Facades\DB;

final class InvestmentCorridorContext
{
    public function key(Opportunity $record): ?string
    {
        $name = data_get($record->workflow_context, 'corridor_agribusiness.corridor');
        foreach (config('investment_corridors') as $key => $entry) if ($entry['name'] === $name) return $key;
        return null;
    }

    public function provinces(string $key): array
    {
        $entry = config('investment_corridors.'.$key);
        abort_unless(is_array($entry), 422, 'Seleccione um corredor disponível.');
        $records = app(InvestmentGeography::class)->publicReferences()->where('location_type', 'province')
            ->whereIn('source_code', $entry['provinces'])->get(['id', 'name', 'parent_id', 'location_type', 'source_code'])->all();
        abort_unless(count($records) === count($entry['provinces']), 503, 'Não foi possível recuperar todas as províncias deste corredor. Tente novamente.');
        return $records;
    }

    public function compatible(string $key, ?string $territory): bool
    {
        if (!$territory) return true;
        $path = app(InvestmentGeography::class)->path($territory);
        return $path !== [] && in_array($path[0]->id, array_column($this->provinces($key), 'id'), true);
    }

    /** Both membership in the selected area and documented public zone coverage are required. */
    public function parks(?string $key, ?string $territory): array
    {
        if (!$key || !$territory) return [];
        abort_unless($this->compatible($key, $territory), 422, 'A localização não pertence ao corredor escolhido.');
        $selectedPath = array_column(app(InvestmentGeography::class)->path($territory), 'id');
        $candidates = app(InvestmentZones::class)->visible()->whereIn('category', ['industrial_park', 'zee', 'zfi'])->orderBy('name')->get();
        $result = [];
        foreach ($candidates as $zone) {
            $ids = DB::table('investment_zone_locations')->where('zone_id', $zone->id)->where('validation_status', 'validated')
                ->whereIn('scope_type', ['legal_scope', 'administrative', 'site'])
                ->where(fn($q)=>$q->whereNull('valid_from')->orWhereDate('valid_from','<=',today()))
                ->where(fn($q)=>$q->whereNull('valid_until')->orWhereDate('valid_until','>=',today()))->get(['geo_location_id','scope_type'])->all();
            if ($zone->primary_territory_id) $ids[] = (object)['geo_location_id'=>$zone->primary_territory_id,'scope_type'=>'site'];
            foreach ($ids as $link) {
                $id=$link->geo_location_id;
                if (!$this->compatible($key, $id)) continue;
                $path = array_column(app(InvestmentGeography::class)->path($id), 'id');
                if (in_array($territory, $path, true) || ($link->scope_type==='legal_scope' && in_array($id, $selectedPath, true))) {
                    $result[] = $zone->only(['id', 'name', 'category', 'version_no']); break;
                }
            }
        }
        return $result;
    }
}