package models

import (
	"fmt"
	"strings"
)

type ErrEmptyNoteContent struct{}
type ErrEmptyNoteTitle struct{}
type ErrNoteIncomplete struct {
	why []error
}
type ErrNoteTitleOverflow struct {
	length int
}

func (e *ErrEmptyNoteContent) Error() string {
	return "content cannot be empty"
}

func (e *ErrEmptyNoteTitle) Error() string {
	return "title cannot be empty"
}

func (e *ErrNoteIncomplete) Error() string {
	if len(e.why) == 0 {
		panic("ok so if we use this we need to know why it is incomplete")
	}
	s := make([]string, len(e.why))
	for i, err := range e.why {
		s[i] = err.Error()
	}
	return "note incomplete: " + strings.Join(s, " & ")
}

func (e *ErrNoteIncomplete) Unwrap() []error {
	return e.why
}

func (e *ErrNoteTitleOverflow) Error() string {
	return fmt.Sprintf("title max length %d, %d provided", NoteTitleMaxLength, e.length)
}