<?php

/** Audio is deliberately OFF until the synthetic short/15m/1h gate passes for the current app. */
return [
    'enabled' => filter_var(env('followup_audio.ENABLED', false), FILTER_VALIDATE_BOOLEAN),
    'audio_verified' => filter_var(env('followup_audio.AUDIO_VERIFIED', false), FILTER_VALIDATE_BOOLEAN),
    // Each selected application must separately pass all three synthetic fixtures.
    'verified_profiles' => array_values(array_intersect(['qwen', 'openai'], array_filter(array_map('trim',
        explode(',', (string) env('followup_audio.VERIFIED_PROFILES', '')))))),
    // LLM-suggested media offsets are not reliable ASR alignment; leave off until separately verified.
    'timestamp_verified' => false,
    'profile' => (string) env('followup_audio.PROFILE', 'qwen'),
    'max_bytes' => 524288000,
    'max_seconds' => 3600,
    'chunk_bytes' => 2097152,
    'retention_days' => 90,
    'lease_seconds' => 600,
    'request_timeout' => (int) env('followup_audio.REQUEST_TIMEOUT', 240),
    'concurrency' => max(1, min(8, (int) env('followup_audio.CONCURRENCY', 1))),
    // Keep one stable key across web/worker nodes; empty reuses the existing prescription AI key.
    'encryption_key' => (string) env('followup_audio.ENCRYPTION_KEY', ''),
    'private_dir' => runtime_path() . 'private/followup_audio',
    // Original upload stays <=500 MiB. The same Dify app receives at most this private processing copy.
    'upstream_max_bytes' => (int) env('followup_audio.UPSTREAM_MAX_BYTES', 20971520),
    'normalize_timeout' => (int) env('followup_audio.NORMALIZE_TIMEOUT', 120),
    'ffmpeg' => (string) env('followup_audio.FFMPEG', 'ffmpeg'),
    'ffprobe' => (string) env('followup_audio.FFPROBE', 'ffprobe'),
    'max_response_bytes' => 8388608,
    // No audio-specific provider key or fallback: prescription_ai.base_url/models are reused.
];