<?php
class Bluesky_API {
    private $api_url = 'https://bsky.social/xrpc';
    private $api_key;
    private $did;

    public function __construct($api_key, $did) {
        $this->api_key = $api_key;
        $this->did = $did;
        error_log('[Bluesky Connector] Initializing API with DID: ' . $did);
    }

    public function create_post($post_data) {
        error_log('[Bluesky Connector] Creating post with data: ' . wp_json_encode($post_data));
        
        $headers = array(
            'Authorization' => 'Bearer ' . $this->api_key,
            'Content-Type' => 'application/json',
        );

        $response = wp_remote_post($this->api_url . '/com.atproto.repo.createRecord', array(
            'headers' => $headers,
            'body' => wp_json_encode(array(
                'repo' => $this->did,
                'collection' => 'app.bsky.feed.post',
                'record' => $post_data,
            )),
            'timeout' => 30,
        ));

        if (is_wp_error($response)) {
            error_log('[Bluesky Connector] Create post error: ' . $response->get_error_message());
            return array('error' => $response->get_error_message());
        }

        $response_code = wp_remote_retrieve_response_code($response);
        $response_body = wp_remote_retrieve_body($response);
        error_log('[Bluesky Connector] Create post response code: ' . $response_code);
        error_log('[Bluesky Connector] Create post response: ' . $response_body);

        return json_decode($response_body, true);
    }

    public function resolve_handle($handle) {
        error_log('[Bluesky Connector] Resolving handle: ' . $handle);
        
        $response = wp_remote_get($this->api_url . '/com.atproto.identity.resolveHandle', array(
            'query' => array(
                'handle' => $handle,
            ),
            'timeout' => 30,
        ));

        if (is_wp_error($response)) {
            error_log('[Bluesky Connector] Resolve handle error: ' . $response->get_error_message());
            return array('error' => $response->get_error_message());
        }

        return json_decode(wp_remote_retrieve_body($response), true);
    }

    public function upload_blob($file_path_or_data, $mime_type) {
        error_log('[Bluesky Connector] Starting blob upload');
        error_log('[Bluesky Connector] Mime type: ' . $mime_type);

        $headers = array(
            'Authorization' => 'Bearer ' . $this->api_key,
            'Content-Type' => $mime_type,
        );

        // Determine if input is a file path or raw data
        if (is_string($file_path_or_data) && file_exists($file_path_or_data)) {
            error_log('[Bluesky Connector] Reading from file path: ' . $file_path_or_data);
            $file_contents = file_get_contents($file_path_or_data);
            if ($file_contents === false) {
                error_log('[Bluesky Connector] Failed to read file');
                return array('error' => 'Failed to read file');
            }
        } else {
            error_log('[Bluesky Connector] Using provided data directly');
            $file_contents = $file_path_or_data;
        }

        // Check content size
        $content_size = strlen($file_contents);
        error_log('[Bluesky Connector] Content size: ' . $content_size . ' bytes');

        if ($content_size > 1000000) {
            error_log('[Bluesky Connector] Content size exceeds 1MB limit');
            return array('error' => 'File size exceeds 1MB limit');
        }

        $response = wp_remote_post($this->api_url . '/com.atproto.repo.uploadBlob', array(
            'headers' => $headers,
            'body' => $file_contents,
            'timeout' => 30,
        ));

        if (is_wp_error($response)) {
            error_log('[Bluesky Connector] Upload blob error: ' . $response->get_error_message());
            return array('error' => $response->get_error_message());
        }

        $response_code = wp_remote_retrieve_response_code($response);
        $response_body = wp_remote_retrieve_body($response);
        error_log('[Bluesky Connector] Upload blob response code: ' . $response_code);
        error_log('[Bluesky Connector] Upload blob response: ' . $response_body);

        if ($response_code !== 200) {
            return array('error' => 'Upload failed with status ' . $response_code);
        }

        return json_decode($response_body, true);
    }
}