Backup #1121

Dateiinhalt

<?php

declare(strict_types=1);

namespace Domain\Repository;

// @responsibility: Vertrag für Chat-Nachrichten-Persistenz

interface ChatMessageRepositoryInterface
{
    /**
     * Find messages by session ID.
     *
     * @return array<int, array<string, mixed>>
     */
    public function findBySessionId(int $sessionId): array;

    /**
     * Save a message.
     *
     * @param array<string>|null $sources
     */
    public function save(
        int $sessionId,
        string $role,
        string $content,
        string $model,
        ?int $tokensInput = null,
        ?int $tokensOutput = null,
        ?array $sources = null,
        ?float $startMicrotime = null,
        ?float $endMicrotime = null,
        ?int $authorProfileId = null,
        ?int $systemPromptId = null,
        ?string $collectionsJson = null,
        ?int $contextLimit = null
    ): int;

    /**
     * Delete message by ID.
     */
    public function delete(int $id): void;

    /**
     * Delete all messages for a session.
     */
    public function deleteBySessionId(int $sessionId): void;

    /**
     * Get message statistics for a session.
     *
     * @return array{message_count: int, total_input_tokens: int, total_output_tokens: int, total_duration: float}
     */
    public function getSessionStats(int $sessionId): array;
}

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