import { ChatSession, ChatMessage } from '../shared/types.js';

interface SessionState {
    session: ChatSession;
    messages: ChatMessage[];
    isActive: boolean;
    lastAccessedAt: string;
    messageCount: number;
    metadata: SessionMetadata;
}
interface SessionMetadata {
    providers: string[];
    models: string[];
    totalTokensUsed?: number;
    averageResponseTime?: number;
    lastModel?: string;
    lastProvider?: string;
    tags?: string[];
    customData?: Record<string, any>;
}
interface SessionRestoreOptions {
    includeMessages?: boolean;
    messageLimit?: number;
    fromDate?: string;
    toDate?: string;
}
interface SessionHistoryEntry {
    timestamp: string;
    action: 'created' | 'updated' | 'message_added' | 'title_changed' | 'accessed';
    details: string;
    metadata?: Record<string, any>;
}
interface SessionPersistenceOptions {
    autoSave?: boolean;
    saveInterval?: number;
    maxHistoryEntries?: number;
}

export type { SessionHistoryEntry, SessionMetadata, SessionPersistenceOptions, SessionRestoreOptions, SessionState };