package domain

import "git.cin.su/m/Assistant/contracts/interaction"

type ContextProjection struct {
	Text                       string
	Source                     string
	UsedPersonalMemoryFallback bool
}

// BuildGen2Context is a read-side projection over canonical utterance history.
// PersonalMemory remains a compatibility fallback and is never written here.
func BuildGen2Context(history []interaction.HumanUtterance) ContextProjection {
	text := CompilePersonalMemory(history).ContextText()
	if text != "" {
		return ContextProjection{Text: text, Source: "retrieval:interaction-utterances"}
	}
	return ContextProjection{Text: text, Source: "personal-memory-v1-fallback", UsedPersonalMemoryFallback: true}
}