312 lines
13 KiB
C

/*
* MIT License
*
* Copyright (c) 2022 Joey Castillo
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include "days_since_face.h"
#include "watch.h"
#include "watch_utility.h"
#include "filesystem.h"
static int days_since_instances;
static void persist_date(days_since_state_t *state) {
days_since_date_t maybe_date;
days_since_date_t current_date = {0};
current_date.bit.year = state->working_year;
current_date.bit.month = state->working_month;
current_date.bit.day = state->working_day;
char filename[13];
maybe_date.reg = 0xFFFFFFFF;
sprintf(filename, "since%03d.u32", state->face_index);
filesystem_read_file(filename, (char *) &maybe_date.reg, sizeof(days_since_date_t));
if (current_date.reg != maybe_date.reg) {
filesystem_write_file(filename, (char *) &current_date.reg, sizeof(days_since_date_t));
}
}
static uint32_t _days_since_face_juliandaynum(uint16_t year, uint16_t month, uint16_t day) {
// from here: https://en.wikipedia.org/wiki/Julian_day#Julian_day_number_calculation
return (1461 * (year + 4800 + (month - 14) / 12)) / 4 + (367 * (month - 2 - 12 * ((month - 14) / 12))) / 12 - (3 * ((year + 4900 + (month - 14) / 12) / 100))/4 + day - 32075;
}
static void _days_since_face_update(days_since_state_t *state) {
char buf[15];
watch_date_time_t date_time = watch_rtc_get_date_time();
uint32_t julian_now_date = _days_since_face_juliandaynum(date_time.unit.year + WATCH_RTC_REFERENCE_YEAR, date_time.unit.month, date_time.unit.day);
uint32_t julian_since_date = _days_since_face_juliandaynum(state->working_year, state->working_month, state->working_day);
watch_display_text_with_fallback(WATCH_POSITION_TOP_LEFT, "DAY", "DA");
watch_display_text(WATCH_POSITION_TOP_RIGHT, " ");
if (julian_now_date < julian_since_date) {
sprintf(buf, "%6lu", julian_since_date - julian_now_date);
} else {
sprintf(buf, "%6lu", julian_now_date - julian_since_date);
}
watch_display_text(WATCH_POSITION_BOTTOM, buf);
}
static void _days_since_face_abort_quick_cycle(days_since_state_t *state) {
if (state->quick_cycle) {
state->quick_cycle = false;
movement_request_tick_frequency(4);
}
}
static void _days_since_face_increment(days_since_state_t *state) {
state->birthday_changed = true;
switch (state->current_page) {
case PAGE_YEAR:
state->working_year = state->working_year + 1;
if (state->working_year > 2080) state->working_year = 1900;
break;
case PAGE_MONTH:
state->working_month = (state->working_month % 12) + 1;
break;
case PAGE_DAY:
state->working_day = (state->working_day % watch_utility_days_in_month(state->working_month, state->working_year)) + 1;
break;
default:
break;
}
}
void days_since_face_setup(uint8_t watch_face_index, void ** context_ptr) {
(void) watch_face_index;
if (*context_ptr == NULL) {
*context_ptr = malloc(sizeof(days_since_state_t));
memset(*context_ptr, 0, sizeof(days_since_state_t));
days_since_date_t since_date = {0};
days_since_state_t *state = (days_since_state_t *)*context_ptr;
state->face_index = days_since_instances++;
// load date from file if it exists
char filename[13];
sprintf(filename, "since%03d.u32", state->face_index);
if (filesystem_file_exists(filename)) {
filesystem_read_file(filename, (char *) &since_date, sizeof(days_since_date_t));
} else {
// if birth date is not set, set a reasonable starting date. this works well for anyone under 65, but
// you can keep pressing to go back to 1900; just go past the year 2080.
since_date.bit.year = 1959;
since_date.bit.month = 1;
since_date.bit.day = 1;
}
state->working_year = since_date.bit.year;
state->working_month = since_date.bit.month;
state->working_day = since_date.bit.day;
}
}
void days_since_face_activate(void *context) {
days_since_state_t *state = (days_since_state_t *)context;
state->current_page = PAGE_DISPLAY;
state->quick_cycle = false;
state->ticks = 0;
}
bool days_since_face_loop(movement_event_t event, void *context) {
days_since_state_t *state = (days_since_state_t *)context;
char buf[9];
switch (event.event_type) {
case EVENT_ACTIVATE:
_days_since_face_update(state);
break;
case EVENT_LOW_ENERGY_UPDATE:
case EVENT_TICK:
if (state->quick_cycle) {
if (HAL_GPIO_BTN_ALARM_read()) {
_days_since_face_increment(state);
} else {
_days_since_face_abort_quick_cycle(state);
}
}
switch (state->current_page) {
// if in settings mode, update whatever the current page is
case PAGE_YEAR:
watch_display_text_with_fallback(WATCH_POSITION_TOP, "Year ", "YR");
if (event.subsecond % 2) {
sprintf(buf, "%4d ", state->working_year);
watch_display_text(WATCH_POSITION_BOTTOM, buf);
} else {
watch_display_text(WATCH_POSITION_BOTTOM, " ");
}
break;
case PAGE_MONTH:
watch_display_text_with_fallback(WATCH_POSITION_TOP, "Month", "MO");
if (event.subsecond % 2) {
sprintf(buf, "%2d ", state->working_month);
watch_display_text(WATCH_POSITION_BOTTOM, buf);
} else {
watch_display_text(WATCH_POSITION_BOTTOM, " ");
}
break;
case PAGE_DAY:
watch_display_text_with_fallback(WATCH_POSITION_TOP, "Day ", "DA");
if (event.subsecond % 2) {
sprintf(buf, " %2d ", state->working_day);
watch_display_text(WATCH_POSITION_BOTTOM, buf);
} else {
watch_display_text(WATCH_POSITION_BOTTOM, " ");
}
break;
// otherwise, check if we have to update. the display only needs to change at midnight!
case PAGE_DISPLAY: {
watch_date_time_t date_time = watch_rtc_get_date_time();
if (date_time.unit.hour == 0 && date_time.unit.minute == 0 && date_time.unit.second == 0) {
_days_since_face_update(state);
}
break;}
case PAGE_DATE:
if (state->ticks > 0) {
state->ticks--;
} else {
state->current_page = PAGE_DISPLAY;
_days_since_face_update(state);
}
break;
default:
break;
}
break;
case EVENT_LIGHT_BUTTON_DOWN:
// only illuminate if we're in display mode
switch (state->current_page) {
case PAGE_DISPLAY:
// fall through
case PAGE_DATE:
movement_illuminate_led();
break;
default:
break;
}
break;
case EVENT_LIGHT_BUTTON_UP:
// otherwise use the light button to advance settings pages.
switch (state->current_page) {
case PAGE_YEAR:
// fall through
case PAGE_MONTH:
// fall through
case PAGE_DAY:
// go to next setting page...
state->current_page = (state->current_page + 1) % 4;
if (state->current_page == PAGE_DISPLAY) {
// ...unless we've been pushed back to display mode.
movement_request_tick_frequency(1);
// save the date if it changed
persist_date(state);
// and force display since it normally won't update til midnight.
_days_since_face_update(state);
}
break;
default:
break;
}
break;
case EVENT_ALARM_BUTTON_UP:
// if we are on a settings page, increment whatever value we're setting.
switch (state->current_page) {
case PAGE_YEAR:
// fall through
case PAGE_MONTH:
// fall through
case PAGE_DAY:
_days_since_face_abort_quick_cycle(state);
_days_since_face_increment(state);
break;
case PAGE_DISPLAY:
{
watch_date_time_t date_time = watch_rtc_get_date_time();
uint32_t julian_now_date = _days_since_face_juliandaynum(date_time.unit.year + WATCH_RTC_REFERENCE_YEAR, date_time.unit.month, date_time.unit.day);
uint32_t julian_since_date = _days_since_face_juliandaynum(state->working_year, state->working_month, state->working_day);
if (julian_now_date < julian_since_date) {
watch_display_text_with_fallback(WATCH_POSITION_TOP, "Until", "DA");
} else {
watch_display_text_with_fallback(WATCH_POSITION_TOP, "SINCE", "DA");
}
state->current_page = PAGE_DATE;
sprintf(buf, "%02d%02d%02d", state->working_year % 100, state->working_month % 100, state->working_day % 100);
watch_display_text(WATCH_POSITION_BOTTOM, buf);
state->ticks = 2;
}
break;
default:
break;
}
break;
case EVENT_ALARM_LONG_PRESS:
// if we aren't already in settings mode, put us there.
switch (state->current_page) {
case PAGE_DISPLAY:
state->current_page++;
movement_request_tick_frequency(4);
break;
case PAGE_YEAR:
// fall through
case PAGE_MONTH:
// fall through
case PAGE_DAY:
state->quick_cycle = true;
movement_request_tick_frequency(8);
break;
default:
break;
}
break;
case EVENT_ALARM_LONG_UP:
_days_since_face_abort_quick_cycle(state);
break;
case EVENT_TIMEOUT:
_days_since_face_abort_quick_cycle(state);
// return home if we're on a settings page (this saves our changes when we resign).
if (state->current_page != PAGE_DISPLAY) {
movement_move_to_face(0);
}
break;
default:
movement_default_loop_handler(event);
break;
}
return true;
}
void days_since_face_resign(void *context) {
days_since_state_t *state = (days_since_state_t *)context;
// if the user changed their birth date, store it to the birth date register
if (state->birthday_changed) {
days_since_state_t *state = (days_since_state_t *)context;
persist_date(state);
state->birthday_changed = false;
}
}