package chat

import "time"

type Logs struct {
	entries [20]LogEntry
	start   int
}

func (l *Logs) Append(le LogEntry) {
	l.entries[l.start] = le
	l.start++
	if l.start == len(l.entries) {
		l.start = 0
	}
}

func (l *Logs) Get() []LogEntry {
	result := make([]LogEntry, 0, len(l.entries))
	for i := l.start; i < len(l.entries); i++ {
		result = append(result, l.entries[i])
	}
	for i := 0; i < l.start; i++ {
		result = append(result, l.entries[i])
	}

	return result
}

type LogEntry struct {
	Username string
	Time     time.Time
	Message  string
	Type     LogEntryType
}

type LogEntryType int

const (
	TypeNone LogEntryType = iota
	TypeJoined
	TypeLeft
	TypeMessage
)