113 lines
4.3 KiB
PHP
113 lines
4.3 KiB
PHP
<?php
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namespace HermesAiBridge;
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defined('ABSPATH') or die();
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class AiProvider {
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protected $api_key;
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protected $base_url;
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protected $model;
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protected $max_tokens;
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protected $provider;
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public function __construct() {
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$this->provider = get_option('hermes_ai_provider', 'openai');
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$this->model = get_option('hermes_ai_model', 'gpt-4');
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$this->max_tokens = intval(get_option('hermes_ai_max_tokens', 2048));
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$this->api_key = get_option('hermes_ai_api_key', '');
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$this->base_url = get_option('hermes_ai_base_url', 'https://api.openai.com/v1');
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}
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/**
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* Generate content from a prompt.
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*/
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public function generate($prompt, $context = 'general') {
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$system_prompt = $this->get_system_prompt($context);
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return $this->call_ai_api($system_prompt, $prompt);
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}
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/**
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* Call the configured AI provider API.
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*/
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protected function call_ai_api($system, $user_prompt) {
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if (empty($this->api_key)) {
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return new \WP_Error('no_api_key', 'AI provider API key not configured. Set it in WordPress Admin → Hermes AI.');
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}
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$body = [
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'model' => $this->model,
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'max_tokens' => $this->max_tokens,
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'messages' => [
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['role' => 'system', 'content' => $system],
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['role' => 'user', 'content' => $user_prompt],
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],
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];
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$response = wp_remote_post($this->base_url . '/chat/completions', [
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'timeout' => 120,
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'headers' => [
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'Authorization' => 'Bearer ' . $this->api_key,
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'Content-Type' => 'application/json',
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],
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'body' => wp_json_encode($body),
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]);
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if (is_wp_error($response)) {
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RestController::log('error', 'AI API call failed', ['error' => $response->get_error_message()]);
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return $response;
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}
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$status = wp_remote_retrieve_response_code($response);
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$body = json_decode(wp_remote_retrieve_body($response), true);
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if ($status !== 200) {
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$error_msg = $body['error']['message'] ?? 'Unknown API error';
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RestController::log('error', 'AI API error', ['status' => $status, 'error' => $error_msg]);
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return new \WP_Error('ai_api_error', "AI API returned $status: $error_msg");
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}
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$content = $body['choices'][0]['message']['content'] ?? '';
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RestController::log('info', 'AI content generated', ['model' => $this->model, 'tokens' => $body['usage']['total_tokens'] ?? 0]);
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return $content;
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}
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/**
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* Newsletter-specific batch generation.
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*/
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public function generate_newsletter_content() {
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$prompt = "Write a newsletter for Falah Letter — Islamic fintech and community updates. "
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. "Include sections: featured article, community news, upcoming events, featured project. "
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. "Write in a professional but warm tone. Target length: 1500-2000 words.";
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$content = $this->generate($prompt, 'newsletter');
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if (is_wp_error($content)) return;
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$post_id = wp_insert_post([
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'post_title' => 'Falah Letter — ' . wp_date('F j, Y'),
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'post_content' => $content,
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'post_type' => 'post',
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'post_status' => 'draft',
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'tags_input' => ['newsletter', 'falah-letter', 'automated'],
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]);
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if ($post_id) {
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RestController::log('info', 'Newsletter draft generated', ['post_id' => $post_id]);
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}
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}
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protected function get_system_prompt($context) {
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$prompts = [
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'post' => 'You are a content writer for FalahOS, an Islamic fintech platform. '
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. 'Write engaging, well-structured content. Use markdown for formatting. '
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. 'Keep paragraphs short and scannable.',
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'newsletter' => 'You are the editor of Falah Letter, a weekly newsletter about '
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. 'Islamic fintech, community updates, and FalahOS platform news. '
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. 'Write in a professional warm tone.',
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'social' => 'You are a social media manager for FalahOS. Create engaging posts '
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. 'optimized for LinkedIn and Twitter. Use emojis sparingly.',
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];
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return $prompts[$context] ?? $prompts['post'];
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}
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}
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