<?php

function alexr_get_twilio_templates() {
	$sid   = get_option('alexr_twilio_sid');       // o define('TWILIO_SID', '...');
	$token = get_option('alexr_twilio_token');

	$url = 'https://content.twilio.com/v1/Content?PageSize=50';

	$response = wp_remote_get( $url, [
		'headers' => [
			'Authorization' => 'Basic ' . base64_encode( $sid . ':' . $token ),
			'Accept'        => 'application/json',
		],
		'timeout' => 20,
	]);

	if ( is_wp_error( $response ) ) {
		return new WP_Error( 'twilio_error', $response->get_error_message() );
	}

	$body = json_decode( wp_remote_retrieve_body( $response ), true );

	if ( empty( $body['contents'] ) ) {
		return [];
	}

	// Devuelves solo lo que te interese para el selector del plugin
	$templates = [];
	foreach ( $body['contents'] as $content ) {
		$templates[] = [
			'sid'           => $content['sid'],          // HXXXXXXXXXXXXXXXXX
			'name'          => $content['friendly_name'],
			'language'      => $content['language'],
			'date_created'  => $content['date_created'],
			// Aquí podrías luego hacer otra llamada a approval_fetch si quieres ver estado en WhatsApp
			'approval_url'  => $content['links']['approval_fetch'] ?? null,
		];
	}

	return $templates;
}


function alexr_twilio_get_template_raw( $content_sid ) {
	$sid   = get_option('alexr_twilio_sid');
	$token = get_option('alexr_twilio_token');

	$url = 'https://content.twilio.com/v1/Content/' . urlencode( $content_sid );

	$response = wp_remote_get( $url, [
		'headers' => [
			'Authorization' => 'Basic ' . base64_encode( $sid . ':' . $token ),
			'Accept'        => 'application/json',
		],
		'timeout' => 20,
	]);

	if ( is_wp_error( $response ) ) {
		return $response; // WP_Error
	}

	$body = json_decode( wp_remote_retrieve_body( $response ), true );

	if ( empty( $body['types']['twilio/text']['body'] ) ) {
		return new WP_Error( 'no_body', 'No se ha encontrado el body del template.' );
	}

	return [
		'sid'          => $body['sid'],
		'name'         => $body['friendly_name'] ?? '',
		'language'     => $body['language'] ?? '',
		'raw_body'     => $body['types']['twilio/text']['body'],
	];
}


function alexr_send_whatsapp_template( $to_phone, $content_sid, $variables = [] ) {
	$sid   = get_option('alexr_twilio_sid');
	$token = get_option('alexr_twilio_token');

	// Puede ser un número WhatsApp o un Messaging Service SID
	$from  = get_option('alexr_twilio_from'); // ej: 'whatsapp:+1415XXXXXXX' o 'MGXXXXXXXXXXXX'

	$url = 'https://api.twilio.com/2010-04-01/Accounts/' . $sid . '/Messages.json';

	$body = [
		'To'           => 'whatsapp:' . $to_phone,      // ya en formato +34....
		'From'         => $from,
		'ContentSid'   => $content_sid,                 // HX421d15c...
	];

	if ( ! empty( $variables ) ) {
		// Las keys deben corresponder con las variables del template: "1", "2", etc.
		$body['ContentVariables'] = wp_json_encode( $variables );
	}

	$response = wp_remote_post( $url, [
		'body'    => $body,
		'headers' => [
			'Authorization' => 'Basic ' . base64_encode( $sid . ':' . $token ),
		],
		'timeout' => 20,
	]);

	if ( is_wp_error( $response ) ) {
		return new WP_Error( 'twilio_error', $response->get_error_message() );
	}

	$data = json_decode( wp_remote_retrieve_body( $response ), true );
	return $data; // aquí tienes sid del mensaje, status, etc.
}