<?php
// config/knowledgebase.php
// Konfigurasi umum untuk sistem knowledge base

return [

    /*
    |--------------------------------------------------------------------------
    | Upload Configuration
    |--------------------------------------------------------------------------
    */
    'upload' => [
        'max_file_size'   => (int) env('KB_MAX_FILE_SIZE', 20480), // KB (20MB)
        'allowed_mimes'   => ['pdf'],
        'storage_disk'    => env('KB_STORAGE_DISK', 'local'),
        'storage_path'    => 'documents', // dalam storage/app/documents/
    ],

    /*
    |--------------------------------------------------------------------------
    | Chunking Configuration
    |--------------------------------------------------------------------------
    */
    'chunking' => [
        'max_words'     => (int) env('KB_CHUNK_MAX_WORDS', 500),
        // Max patah perkataan per chunk
        'overlap_words' => (int) env('KB_CHUNK_OVERLAP_WORDS', 75),
        // Overlap antara chunk berturutan
        'min_words'     => (int) env('KB_CHUNK_MIN_WORDS', 30),
        // Chunk dengan < min_words akan digabung atau dibuang
    ],

    /*
    |--------------------------------------------------------------------------
    | RAG Configuration
    |--------------------------------------------------------------------------
    */
    'rag' => [
        'max_context_chunks' => (int) env('KB_RAG_MAX_CHUNKS', 5),
        // Max chunk yang dimasukkan dalam context untuk model
        'max_context_words'  => (int) env('KB_RAG_MAX_CONTEXT_WORDS', 2000),
        // Jika terlalu banyak words, potong context
    ],

    /*
    |--------------------------------------------------------------------------
    | Rate Limiting
    |--------------------------------------------------------------------------
    */
    'rate_limit' => [
        'chatbot_per_minute' => (int) env('KB_CHAT_RATE_LIMIT', 20),
        // Request chatbot per minit per IP
    ],

    /*
    |--------------------------------------------------------------------------
    | Queue Configuration
    |--------------------------------------------------------------------------
    */
    'queue' => [
        'ingestion' => env('KB_QUEUE_INGESTION', 'default'),
        'embedding' => env('KB_QUEUE_EMBEDDING', 'default'),
        'chat_log'  => env('KB_QUEUE_CHAT_LOG', 'default'),
    ],
];