<?php

namespace Tempo\Finance\Payables;

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Schema;

final class PaymentDecisionSchema
{
    public static function install(): void
    {
        $driver = DB::connection()->getDriverName();
        if (! in_array($driver, ['pgsql', 'sqlite'], true) || ! Schema::hasTable('pa_imported_payments') || Schema::hasTable('pa_payment_decisions')) {
            throw new \LogicException('Histórico anterior obrigatório; não adoptar tabela de decisões existente.');
        }
        Schema::create('pa_payment_decisions', function (Blueprint $table) {
            $table->id();
            foreach (['tenant_id', 'company_id', 'unit_id'] as $key) {
                $table->unsignedBigInteger($key);
            }
            $table->foreignId('obligation_id')->constrained('pa_obligations');
            $table->foreignId('imported_payment_id')->unique()->constrained('pa_imported_payments');
            $table->unsignedInteger('sequence');
            $table->string('previous_hash', 64);
            $table->string('history_hash', 64);
            $table->jsonb('payment_snapshot');
            $table->unsignedBigInteger('actor_id');
            $table->timestamp('created_at');
            $table->unique(['obligation_id', 'sequence']);
        });
        if ($driver === 'pgsql') {
            DB::unprepared('CREATE TRIGGER pa_decision_immutable BEFORE UPDATE OR DELETE ON pa_payment_decisions FOR EACH ROW EXECUTE FUNCTION pa_append_only()');
        } else {
            foreach (['UPDATE', 'DELETE'] as $operation) {
                DB::unprepared('CREATE TRIGGER pa_decision_'.strtolower($operation)." BEFORE {$operation} ON pa_payment_decisions BEGIN SELECT RAISE(ABORT, 'PA_APPEND_ONLY'); END");
            }
        }
    }
}