<?php

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

return new class extends Migration
{
    public function up(): void
    {
        Schema::create('people_clarifications', function (Blueprint $table) {
            $table->id();
            $table->foreignId('tenant_id')->constrained()->restrictOnDelete();
            $table->foreignId('people_process_id')->constrained()->restrictOnDelete();
            $table->foreignId('people_application_id')->constrained()->restrictOnDelete();
            $table->foreignId('people_review_id')->constrained()->restrictOnDelete();
            $table->unsignedInteger('criterion_index');
            $table->text('question');
            $table->foreignId('raised_by')->constrained('users')->restrictOnDelete();
            $table->foreignId('responsible_id')->constrained('users')->restrictOnDelete();
            $table->date('due_on');
            $table->uuid('operation_key');
            $table->string('creation_hash', 64);
            $table->string('status')->default('open');
            $table->unsignedInteger('version')->default(1);
            $table->json('responses');
            $table->json('decisions');
            $table->timestamps();
            $table->unique(['people_review_id', 'criterion_index']);
            $table->unique(['tenant_id', 'operation_key']);
        });
        if (DB::getDriverName() === 'pgsql') {
            DB::unprepared("CREATE FUNCTION sgc_preserve_people_clarification() RETURNS trigger LANGUAGE plpgsql AS $$ BEGIN
                IF TG_OP = 'DELETE' OR OLD.status = 'resolved' THEN RAISE EXCEPTION 'Preservar esclarecimento e conclusao'; END IF;
                IF NEW.version <> OLD.version + 1 OR ROW(NEW.tenant_id, NEW.people_process_id, NEW.people_application_id, NEW.people_review_id, NEW.criterion_index, NEW.question, NEW.raised_by, NEW.operation_key, NEW.creation_hash)
                    IS DISTINCT FROM ROW(OLD.tenant_id, OLD.people_process_id, OLD.people_application_id, OLD.people_review_id, OLD.criterion_index, OLD.question, OLD.raised_by, OLD.operation_key, OLD.creation_hash)
                    THEN RAISE EXCEPTION 'Preservar origem e versao do esclarecimento'; END IF;
                RETURN NEW; END $$;
                CREATE TRIGGER preserve_people_clarification BEFORE UPDATE OR DELETE ON people_clarifications FOR EACH ROW EXECUTE FUNCTION sgc_preserve_people_clarification();");
        } elseif (DB::getDriverName() === 'sqlite') {
            DB::unprepared("CREATE TRIGGER preserve_people_clarification_delete BEFORE DELETE ON people_clarifications BEGIN SELECT RAISE(ABORT, 'Preservar esclarecimento'); END;");
            DB::unprepared("CREATE TRIGGER preserve_people_clarification_update BEFORE UPDATE ON people_clarifications WHEN OLD.status = 'resolved' OR NEW.version <> OLD.version + 1
                OR NEW.tenant_id IS NOT OLD.tenant_id OR NEW.people_process_id IS NOT OLD.people_process_id OR NEW.people_application_id IS NOT OLD.people_application_id
                OR NEW.people_review_id IS NOT OLD.people_review_id OR NEW.criterion_index IS NOT OLD.criterion_index OR NEW.question IS NOT OLD.question
                OR NEW.raised_by IS NOT OLD.raised_by OR NEW.operation_key IS NOT OLD.operation_key OR NEW.creation_hash IS NOT OLD.creation_hash
                BEGIN SELECT RAISE(ABORT, 'Preservar origem e conclusao'); END;");
        }
    }

    public function down(): void
    {
        throw new LogicException('Preservar esclarecimentos e respostas.');
    }
};