/*
 * MIT License
 *
 * Copyright (c) 2019 Nicolas JUHEL
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

package njs_errors

import (
	"fmt"
	"path"
	"runtime"
	"strings"
)

type ErrorCode interface {
	Error() error
	ErrorFull() error

	String() string
	StringFull() string

	Code() string
	Trace() runtime.Frame
}

type errorCode struct {
	code  string
	err   ErrorType
	ori   error
	trace runtime.Frame
}

// Error return an error type of the current error code, with no code in reference
func (e errorCode) Error() error {
	return e.err.Error(e.ori)
}

// String return a string of the current error code, with no code in reference
func (e errorCode) String() string {
	return e.err.String()
}

// Code return a string of the current code, with no error in reference
func (e errorCode) Code() string {
	return e.code
}

// Trace return a runtime frame of the current error
func (e errorCode) Trace() runtime.Frame {
	return e.trace
}

// StringFull return a error type of the current code, with error and origin in reference
func (e errorCode) StringFull() string {
	return e.ErrorFull().Error()
}

// ErrorFull return a error type of the current code, with error and origin in reference
func (e errorCode) ErrorFull() error {

	if e.trace != getNilFrame() {
		var t = make([]string, 0)

		if e.trace.File != "" {
			t = append(t, path.Base(e.trace.File))
		}

		if e.trace.Function != "" {
			t = append(t, e.trace.Function)
		}

		if e.trace.Line > 0 {
			t = append(t, fmt.Sprintf("%v", e.trace.Line))
		}

		if len(t) > 0 {
			return fmt.Errorf("(%s) [%s] %v", e.code, strings.Join(t, "|"), e.Error())
		}
	}

	return fmt.Errorf("(%s) %v", e.code, e.Error())
}