/*
 * This file is part of the Infinitime distribution (https://github.com/JF002/Infinitime).
 * Copyright (c) 2021 Kieran Cawthray.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 * PineTimeStyle watchface for Infinitime created by Kieran Cawthray
 * Based on WatchFaceDigital
 * Style/layout copied from TimeStyle for Pebble by Dan Tilden (github.com/tilden)
 */

#include "PineTimeStyle.h"
#include <date/date.h>
#include <lvgl/lvgl.h>
#include <cstdio>
#include "BatteryIcon.h"
#include "BleIcon.h"
#include "NotificationIcon.h"
#include "Symbols.h"
#include "components/battery/BatteryController.h"
#include "components/ble/BleController.h"
#include "components/ble/NotificationManager.h"
#include "components/heartrate/HeartRateController.h"
#include "components/settings/Settings.h"
#include "../DisplayApp.h"

using namespace Pinetime::Applications::Screens;

PineTimeStyle::PineTimeStyle(DisplayApp* app,
                             Controllers::DateTime& dateTimeController,
                             Controllers::Battery& batteryController,
                             Controllers::Ble& bleController,
                             Controllers::NotificationManager& notificatioManager,
                             Controllers::Settings& settingsController,
                             Controllers::HeartRateController& heartRateController)
  : Screen(app),
    currentDateTime {{}},
    dateTimeController {dateTimeController},
    batteryController {batteryController},
    bleController {bleController},
    notificatioManager {notificatioManager},
    settingsController {settingsController},
    heartRateController {heartRateController} {

  /* This sets the watchface number to return to after leaving the menu */
  settingsController.SetClockFace(2);

  displayedChar[0] = 0;
  displayedChar[1] = 0;
  displayedChar[2] = 0;
  displayedChar[3] = 0;
  displayedChar[4] = 0;

  /* Create a 200px wide background rectangle */

  timebar = lv_obj_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_bg_color(timebar, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_obj_set_style_local_radius(timebar, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, 0);
  lv_obj_set_size(timebar, 200, 240);
  lv_obj_align(timebar, lv_scr_act(), LV_ALIGN_IN_TOP_LEFT, 5, 0);

  /* Display the time */

  timeDD1 = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_font(timeDD1, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &open_sans_light);
  lv_obj_set_style_local_text_color(timeDD1, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x008080));
  lv_label_set_text(timeDD1, "12");
  lv_obj_align(timeDD1, timebar, LV_ALIGN_IN_TOP_MID, 5, 5);

  timeDD2 = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_font(timeDD2, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &open_sans_light);
  lv_obj_set_style_local_text_color(timeDD2, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x008080));
  lv_label_set_text(timeDD2, "34");
  lv_obj_align(timeDD2, timebar, LV_ALIGN_IN_BOTTOM_MID, 5, -5);

  /* Create a 40px wide bar down the right side of the screen */

  sidebar = lv_obj_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_bg_color(sidebar, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x008080));
  lv_obj_set_style_local_radius(sidebar, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, 0);
  lv_obj_set_size(sidebar, 40, 240);
  lv_obj_align(sidebar, lv_scr_act(), LV_ALIGN_IN_TOP_RIGHT, 0, 0);

  /* Display icons */

  batteryIcon = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(batteryIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_label_set_text(batteryIcon, Symbols::batteryFull);
  lv_obj_align(batteryIcon, sidebar, LV_ALIGN_IN_TOP_MID, 0, 2);

  batteryPlug = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(batteryPlug, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_obj_align(batteryPlug, sidebar, LV_ALIGN_IN_TOP_MID, 0, 2);

  bleIcon = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(bleIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_obj_align(bleIcon, sidebar, LV_ALIGN_IN_TOP_MID, 0, 25);

  notificationIcon = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(notificationIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_obj_align(notificationIcon, sidebar, LV_ALIGN_IN_TOP_MID, 0, 40);

  /* Calendar icon */

  calendarOuter = lv_obj_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_bg_color(calendarOuter, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_obj_set_style_local_radius(calendarOuter, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, 0);
  lv_obj_set_size(calendarOuter, 34, 34);
  lv_obj_align(calendarOuter, sidebar, LV_ALIGN_CENTER, 0, 0);

  calendarInner = lv_obj_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_bg_color(calendarInner, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0xffffff));
  lv_obj_set_style_local_radius(calendarInner, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, 0);
  lv_obj_set_size(calendarInner, 27, 27);
  lv_obj_align(calendarInner, calendarOuter, LV_ALIGN_CENTER, 0, 0);

  calendarBar1 = lv_obj_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_bg_color(calendarBar1, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_obj_set_style_local_radius(calendarBar1, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, 0);
  lv_obj_set_size(calendarBar1, 3, 12);
  lv_obj_align(calendarBar1, calendarOuter, LV_ALIGN_IN_TOP_MID, -6, -3);

  calendarBar2 = lv_obj_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_bg_color(calendarBar2, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_obj_set_style_local_radius(calendarBar2, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, 0);
  lv_obj_set_size(calendarBar2, 3, 12);
  lv_obj_align(calendarBar2, calendarOuter, LV_ALIGN_IN_TOP_MID, 6, -3);

  calendarCrossBar1 = lv_obj_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_bg_color(calendarCrossBar1, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_obj_set_style_local_radius(calendarCrossBar1, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, 0);
  lv_obj_set_size(calendarCrossBar1, 8, 3);
  lv_obj_align(calendarCrossBar1, calendarBar1, LV_ALIGN_IN_BOTTOM_MID, 0, 0);

  calendarCrossBar2 = lv_obj_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_bg_color(calendarCrossBar2, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_obj_set_style_local_radius(calendarCrossBar2, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, 0);
  lv_obj_set_size(calendarCrossBar2, 8, 3);
  lv_obj_align(calendarCrossBar2, calendarBar2, LV_ALIGN_IN_BOTTOM_MID, 0, 0);

  /* Display date */

  dateDayOfWeek = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(dateDayOfWeek, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_label_set_text(dateDayOfWeek, "THU");
  lv_obj_align(dateDayOfWeek, sidebar, LV_ALIGN_CENTER, 0, -34);

  dateDay = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(dateDay, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_label_set_text(dateDay, "25");
  lv_obj_align(dateDay, sidebar, LV_ALIGN_CENTER, 0, 3);

  dateMonth = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(dateMonth, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_label_set_text(dateMonth, "MAR");
  lv_obj_align(dateMonth, sidebar, LV_ALIGN_CENTER, 0, 32);

  /* Display heartrate info */

  heartbeatIcon = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(heartbeatIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_label_set_text(heartbeatIcon, Symbols::heartBeat);
  lv_obj_align(heartbeatIcon, sidebar, LV_ALIGN_IN_BOTTOM_MID, 0, -30);

  heartbeatValue = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(heartbeatValue, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
  lv_label_set_text(heartbeatValue, "---");
  lv_obj_align(heartbeatValue, sidebar, LV_ALIGN_IN_BOTTOM_MID, 0, -10);

  backgroundLabel = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_click(backgroundLabel, true);
  lv_label_set_long_mode(backgroundLabel, LV_LABEL_LONG_CROP);
  lv_obj_set_size(backgroundLabel, 240, 240);
  lv_obj_set_pos(backgroundLabel, 0, 0);
  lv_label_set_text(backgroundLabel, "");
}

PineTimeStyle::~PineTimeStyle() {
  lv_obj_clean(lv_scr_act());
}

bool PineTimeStyle::Refresh() {
  batteryPercentRemaining = batteryController.PercentRemaining();
  if (batteryPercentRemaining.IsUpdated()) {
    auto batteryPercent = batteryPercentRemaining.Get();
    if (batteryController.IsCharging()) {
      auto isCharging = batteryController.IsCharging() || batteryController.IsPowerPresent();
      lv_label_set_text(batteryPlug, BatteryIcon::GetPlugIcon(isCharging));
      lv_obj_realign(batteryPlug);
      lv_label_set_text(batteryIcon, "");
    } else {
      lv_label_set_text(batteryIcon, BatteryIcon::GetBatteryIcon(batteryPercent));
      lv_label_set_text(batteryPlug, "");
    }
  }

  bleState = bleController.IsConnected();
  if (bleState.IsUpdated()) {
    if (bleState.Get() == true) {
      lv_label_set_text(bleIcon, BleIcon::GetIcon(true));
      lv_obj_realign(bleIcon);
    } else {
      lv_label_set_text(bleIcon, BleIcon::GetIcon(false));
    }
  }

  notificationState = notificatioManager.AreNewNotificationsAvailable();
  if (notificationState.IsUpdated()) {
    if (notificationState.Get() == true) {
      lv_label_set_text(notificationIcon, NotificationIcon::GetIcon(true));
      lv_obj_realign(notificationIcon);
    } else {
      lv_label_set_text(notificationIcon, NotificationIcon::GetIcon(false));
    }
  }

  currentDateTime = dateTimeController.CurrentDateTime();

  if (currentDateTime.IsUpdated()) {
    auto newDateTime = currentDateTime.Get();

    auto dp = date::floor<date::days>(newDateTime);
    auto time = date::make_time(newDateTime - dp);
    auto yearMonthDay = date::year_month_day(dp);

    auto year = (int) yearMonthDay.year();
    auto month = static_cast<Pinetime::Controllers::DateTime::Months>((unsigned) yearMonthDay.month());
    auto day = (unsigned) yearMonthDay.day();
    auto dayOfWeek = static_cast<Pinetime::Controllers::DateTime::Days>(date::weekday(yearMonthDay).iso_encoding());

    int hour = time.hours().count();
    auto minute = time.minutes().count();

    char minutesChar[3];
    sprintf(minutesChar, "%02d", static_cast<int>(minute));

    char hoursChar[3];
    sprintf(hoursChar, "%02d", hour);

    if (hoursChar[0] != displayedChar[0] || hoursChar[1] != displayedChar[1] || minutesChar[0] != displayedChar[2] ||
        minutesChar[1] != displayedChar[3]) {
      displayedChar[0] = hoursChar[0];
      displayedChar[1] = hoursChar[1];
      displayedChar[2] = minutesChar[0];
      displayedChar[3] = minutesChar[1];

      char hourStr[3];
      char minStr[3];

      /* Display the time as 2 pairs of digits */
      sprintf(hourStr, "%c%c", hoursChar[0], hoursChar[1]);
      lv_label_set_text(timeDD1, hourStr);

      sprintf(minStr, "%c%c", minutesChar[0], minutesChar[1]);
      lv_label_set_text(timeDD2, minStr);
    }

    if ((year != currentYear) || (month != currentMonth) || (dayOfWeek != currentDayOfWeek) || (day != currentDay)) {
      char dayOfWeekStr[4];
      char dayStr[3];
      char monthStr[4];

      sprintf(dayOfWeekStr, "%s", dateTimeController.DayOfWeekShortToString());
      sprintf(dayStr, "%d", day);
      sprintf(monthStr, "%s", dateTimeController.MonthShortToString());

      lv_label_set_text(dateDayOfWeek, dayOfWeekStr);
      lv_label_set_text(dateDay, dayStr);
      lv_obj_realign(dateDay);
      lv_label_set_text(dateMonth, monthStr);

      currentYear = year;
      currentMonth = month;
      currentDayOfWeek = dayOfWeek;
      currentDay = day;
    }
  }

  heartbeat = heartRateController.HeartRate();
  heartbeatRunning = heartRateController.State() != Controllers::HeartRateController::States::Stopped;
  if (heartbeat.IsUpdated() || heartbeatRunning.IsUpdated()) {
    char heartbeatBuffer[4];
    if (heartbeatRunning.Get())
      sprintf(heartbeatBuffer, "%d", heartbeat.Get());
    else
      sprintf(heartbeatBuffer, "---");

    lv_label_set_text(heartbeatValue, heartbeatBuffer);
    lv_obj_realign(heartbeatValue);
  }

  return running;
}