<?php

declare(strict_types=1);

namespace Infrastructure\AI;

/**
 * Central configuration for available AI models.
 * Used by Chat, Content Studio, and other AI-powered features.
 *
 * NOW READS FROM DATABASE via ModelRegistry (Single Source of Truth).
 * Legacy static interface preserved for backward compatibility.
 */
final class ModelConfig
{
    /**
     * Get all available chat models.
     *
     * @return array<string, string> [model_key => display_name]
     */
    public static function getAll(): array
    {
        return ModelRegistry::getInstance()->getChatModels();
    }

    /**
     * Get vision-capable models.
     *
     * @return array<string, string> [model_key => display_name]
     */
    public static function getVisionModels(): array
    {
        return ModelRegistry::getInstance()->getVisionModels();
    }

    /**
     * Get display label for a model ID.
     */
    public static function getLabel(string $modelId): string
    {
        return ModelRegistry::getInstance()->getLabel($modelId);
    }

    /**
     * Check if a model ID is valid.
     */
    public static function isValid(string $modelId): bool
    {
        $registry = ModelRegistry::getInstance();

        // Check in registry first
        if ($registry->isValid($modelId)) {
            return true;
        }

        // Fallback: accept any claude- or ollama: prefixed model
        return str_starts_with($modelId, 'claude-')
            || str_starts_with($modelId, 'ollama:');
    }

    /**
     * Validate and return model, or default if invalid.
     */
    public static function validate(string $modelId): string
    {
        return self::isValid($modelId) ? $modelId : self::getDefaultModel();
    }

    /**
     * Check if model is a local (Ollama) model.
     */
    public static function isLocal(string $modelId): bool
    {
        return str_starts_with($modelId, 'ollama:');
    }

    /**
     * Get default chat model.
     */
    public static function getDefaultModel(): string
    {
        return ModelRegistry::getInstance()->getDefaultChatModel();
    }

    /**
     * Get default vision model.
     */
    public static function getDefaultVisionModel(): string
    {
        return ModelRegistry::getInstance()->getDefaultVisionModel();
    }

    /**
     * Force refresh of model cache (e.g., after Ollama sync).
     */
    public static function clearCache(): void
    {
        ModelRegistry::clearCache();
    }

    /**
     * Sync models from Ollama.
     *
     * @return array Sync results
     */
    public static function syncFromOllama(): array
    {
        return ModelRegistry::getInstance()->syncFromOllama();
    }
}