#include "webinterface.h"

#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <WiFiAP.h>
#include <ESPmDNS.h>
#include <Update.h>
#include "parameters.h"
#include "romfs.h"

static WebServer server(80);

/*
  init web server
 */
void WebInterface::init(void)
{
  WiFi.softAP(g.wifi_ssid, g.wifi_password);
  IPAddress myIP = WiFi.softAPIP();

  /*return index page which is stored in serverIndex */
  server.on("/", HTTP_GET, []() {
    server.sendHeader("Connection", "close");
    server.send(200, "text/html", ROMFS::find_string("web/login.html"));
  });
  server.on("/serverIndex", HTTP_GET, []() {
    server.sendHeader("Connection", "close");
    server.send(200, "text/html", ROMFS::find_string("web/uploader.html"));
  });
  /*handling uploading firmware file */
  server.on("/update", HTTP_POST, []() {
    server.sendHeader("Connection", "close");
    server.send(200, "text/plain", (Update.hasError()) ? "FAIL" : "OK");
    ESP.restart();
  }, []() {
    HTTPUpload& upload = server.upload();
    if (upload.status == UPLOAD_FILE_START) {
      Serial.printf("Update: %s\n", upload.filename.c_str());
      if (!Update.begin(UPDATE_SIZE_UNKNOWN)) { //start with max available size
        Update.printError(Serial);
      }
    } else if (upload.status == UPLOAD_FILE_WRITE) {
      /* flashing firmware to ESP*/
      if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) {
        Update.printError(Serial);
      }
    } else if (upload.status == UPLOAD_FILE_END) {
      if (Update.end(true)) { //true to set the size to the current progress
        Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
      } else {
        Update.printError(Serial);
      }
    }
  });
  server.begin();
}

void WebInterface::update()
{
    if (!initialised) {
        init();
        initialised = true;
    }
    server.handleClient();
}