/**
 * This demo shows how to do an HTTPS request with mbed-http
 * Note that it does not re-use sockets, so very wasteful.
 * To do it the right way, see: https://os.mbed.com/teams/sandbox/code/http-example
 */

#include "mbed.h"
#include "mbed_trace.h"
#include "NetworkInterface.h"
#include "TCPSocket.h"
#include "https_request.h"

/* List of trusted root CA certificates
 * currently one: Amazon, the CA for httpbin.org
 *
 * To add more root certificates, just concatenate them.
 */
const char SSL_CA_PEM[] = "-----BEGIN CERTIFICATE-----\n"
    "MIIDQTCCAimgAwIBAgITBmyfz5m/jAo54vB4ikPmljZbyjANBgkqhkiG9w0BAQsF\n"
    "ADA5MQswCQYDVQQGEwJVUzEPMA0GA1UEChMGQW1hem9uMRkwFwYDVQQDExBBbWF6\n"
    "b24gUm9vdCBDQSAxMB4XDTE1MDUyNjAwMDAwMFoXDTM4MDExNzAwMDAwMFowOTEL\n"
    "MAkGA1UEBhMCVVMxDzANBgNVBAoTBkFtYXpvbjEZMBcGA1UEAxMQQW1hem9uIFJv\n"
    "b3QgQ0EgMTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALJ4gHHKeNXj\n"
    "ca9HgFB0fW7Y14h29Jlo91ghYPl0hAEvrAIthtOgQ3pOsqTQNroBvo3bSMgHFzZM\n"
    "9O6II8c+6zf1tRn4SWiw3te5djgdYZ6k/oI2peVKVuRF4fn9tBb6dNqcmzU5L/qw\n"
    "IFAGbHrQgLKm+a/sRxmPUDgH3KKHOVj4utWp+UhnMJbulHheb4mjUcAwhmahRWa6\n"
    "VOujw5H5SNz/0egwLX0tdHA114gk957EWW67c4cX8jJGKLhD+rcdqsq08p8kDi1L\n"
    "93FcXmn/6pUCyziKrlA4b9v7LWIbxcceVOF34GfID5yHI9Y/QCB/IIDEgEw+OyQm\n"
    "jgSubJrIqg0CAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMC\n"
    "AYYwHQYDVR0OBBYEFIQYzIU07LwMlJQuCFmcx7IQTgoIMA0GCSqGSIb3DQEBCwUA\n"
    "A4IBAQCY8jdaQZChGsV2USggNiMOruYou6r4lK5IpDB/G/wkjUu0yKGX9rbxenDI\n"
    "U5PMCCjjmCXPI6T53iHTfIUJrU6adTrCC2qJeHZERxhlbI1Bjjt/msv0tadQ1wUs\n"
    "N+gDS63pYaACbvXy8MWy7Vu33PqUXHeeE6V/Uq2V8viTO96LXFvKWlJbYK8U90vv\n"
    "o/ufQJVtMVT8QtPHRh8jrdkPSHCa2XV4cdFyQzR1bldZwgJcJmApzyMZFo6IQ6XU\n"
    "5MsI+yMRQ+hDKXJioaldXgjUkK642M4UwtBV8ob2xJNDd2ZhwLnoQdeXeGADbkpy\n"
    "rqXRfboQnoZsG4q5WTP468SQvvG5\n"
    "-----END CERTIFICATE-----\n";

void dump_response(HttpResponse* res) {
    mbedtls_printf("Status: %d - %s\n", res->get_status_code(), res->get_status_message().c_str());

    mbedtls_printf("Headers:\n");
    for (size_t ix = 0; ix < res->get_headers_length(); ix++) {
        mbedtls_printf("\t%s: %s\n", res->get_headers_fields()[ix]->c_str(), res->get_headers_values()[ix]->c_str());
    }
    mbedtls_printf("\nBody (%d bytes):\n\n%s\n", res->get_body_length(), res->get_body_as_string().c_str());
}

int main() {
    NetworkInterface *network = NetworkInterface::get_default_instance();
    if (network->connect() != 0) {
        printf("Could not connect to the network...\n");
        return 1;
    }

    mbed_trace_init();

    // note that this example sets up a new TLS socket for every request... that's wasteful!
    // you can set up a socket manually and pass it in, see the TLS Socket example

    // GET request to httpbin.org
    {
        printf("\n----- HTTPS GET request -----\n");

        HttpsRequest* get_req = new HttpsRequest(network, SSL_CA_PEM, HTTP_GET, "https://httpbin.org/status/418");

        HttpResponse* get_res = get_req->send();
        if (!get_res) {
            printf("HttpsRequest failed (error code %d)\n", get_req->get_error());
            return 1;
        }
        printf("\n----- HTTPS GET response -----\n");
        dump_response(get_res);

        delete get_req;
    }

    // POST request to httpbin.org
    {
        printf("\n----- HTTPS POST request -----\n");

        HttpsRequest* post_req = new HttpsRequest(network, SSL_CA_PEM, HTTP_POST, "https://httpbin.org/post");
        post_req->set_header("Content-Type", "application/json");

        const char body[] = "{\"hello\":\"world\"}";

        HttpResponse* post_res = post_req->send(body, strlen(body));
        if (!post_res) {
            printf("HttpsRequest failed (error code %d)\n", post_req->get_error());
            return 1;
        }

        printf("\n----- HTTPS POST response -----\n");
        dump_response(post_res);

        delete post_req;
    }

    wait(osWaitForever);
}