package com.agendaestudantil.excecao;

import com.agendaestudantil.dto.RespostaApi;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.server.ResponseStatusException;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

@RestControllerAdvice
public class ManipuladorExcecaoGlobal {

    @ExceptionHandler(ExcecaoRecursoNaoEncontrado.class)
    public ResponseEntity<RespostaApi<Void>> handleResourceNotFound(ExcecaoRecursoNaoEncontrado ex) {
        return ResponseEntity.status(HttpStatus.NOT_FOUND)
                .body(new RespostaApi<>(null, ex.getMessage(), LocalDateTime.now()));
    }

    @ExceptionHandler(ExcecaoNegocio.class)
    public ResponseEntity<RespostaApi<Void>> handleExcecaoNegocio(ExcecaoNegocio ex) {
        return ResponseEntity.status(HttpStatus.BAD_REQUEST)
                .body(new RespostaApi<>(null, ex.getMessage(), LocalDateTime.now()));
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public ResponseEntity<RespostaApi<Map<String, String>>> handleValidationException(
            MethodArgumentNotValidException ex) {
        Map<String, String> errors = new HashMap<>();
        for (FieldError error : ex.getBindingResult().getFieldErrors()) {
            errors.put(error.getField(), error.getDefaultMessage());
        }
        return ResponseEntity.status(HttpStatus.BAD_REQUEST)
                .body(new RespostaApi<>(errors, "Falha na validação", LocalDateTime.now()));
    }

    @ExceptionHandler(ResponseStatusException.class)
    public ResponseEntity<RespostaApi<Void>> handleResponseStatusException(ResponseStatusException ex) {
        return ResponseEntity.status(ex.getStatusCode())
                .body(new RespostaApi<>(null, ex.getReason(), LocalDateTime.now()));
    }

    @ExceptionHandler(Exception.class)
    public ResponseEntity<RespostaApi<Void>> handleGenericException(Exception ex) {
        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR)
                .body(new RespostaApi<>(null, "Erro interno no servidor: " + ex.getMessage(), LocalDateTime.now()));
    }
}