package parser

import "time"

type LogEntry struct {
	Timestamp   time.Time
	ContainerID string
	Container   string
	Level       string
	TraceID     string
	SpanID      string
	Message     string
	Fields      map[string]any
	Raw         string
}

type Parser interface {
	// Parse converts a raw log line into a structured LogEntry.
	// Returns (entry, true) on success, (zero LogEntry, false) if the input cannot be parsed.
	Parse(raw string) (LogEntry, bool)
}

type Chain []Parser

func (c Chain) Parse(raw string) (LogEntry, bool) {
	for _, p := range c {
		if entry, ok := p.Parse(raw); ok {
			return entry, true
		}
	}

	return rawFallback(raw), true
}

type NoopParser struct{}

func (NoopParser) Parse(raw string) (LogEntry, bool) {
	return rawFallback(raw), true
}

func rawFallback(raw string) LogEntry {
	return LogEntry{Raw: raw, Message: raw, Timestamp: time.Now()}
}