Move all UI code into new 'ui' directory

src/ui/utils.cpp

@@ -0,0 +1,93 @@
+/*
+ * Mirai. Copyright (C) 2024 Vyn
+ * This file is licensed under version 3 of the GNU General Public License (GPL-3.0-only)
+ * The license can be found in the LICENSE file or at https://www.gnu.org/licenses/gpl-3.0.txt
+ */
+
+#include "utils.h"
+#include <cctype>
+#include <chrono>
+#include <format>
+#include <string>
+
+void bind_slint_utils(const ui::Utils &utils)
+{
+	utils.on_format_date([&](const ui::Date &date) {
+		std::chrono::year_month_day chronoDate{
+			std::chrono::year(date.year),
+			std::chrono::month(date.month),
+			std::chrono::day(date.day),
+		};
+		return std::format("{:%B %d}", chronoDate);
+	});
+
+	auto currentDate = mirai_date_to_slint_date(mirai::date(std::chrono::system_clock::now()));
+	utils.set_current_date(currentDate);
+
+	auto currentTime = mirai_time_to_slint_time(mirai::time(std::chrono::system_clock::now()));
+	utils.set_current_time(currentTime);
+}
+
+std::string format_zero_padding(const int number)
+{
+	if (number < 10) {
+		return "0" + std::to_string(number);
+	}
+	return std::to_string(number);
+}
+
+std::string format_date_relative(const ui::Date &date)
+{
+	auto todayDate = mirai::date(std::chrono::system_clock::now());
+	auto relativeDaysDiff =
+		std::chrono::duration_cast<std::chrono::days>(
+			std::chrono::sys_days(slint_date_to_mirai_date(date).to_std_chrono())
+			- std::chrono::sys_days(todayDate.to_std_chrono())
+		)
+			.count();
+
+	if (relativeDaysDiff == 0) {
+		return std::string("today");
+	} else if (relativeDaysDiff == 1) {
+		return std::string("tomorrow");
+	}
+	return std::format("in {} days", relativeDaysDiff);
+};
+
+std::string capitalize(std::string str)
+{
+	str[0] = static_cast<char>(toupper(str[0]));
+	return str;
+};
+
+std::string slint_date_to_std_string(const ui::Date &date)
+{
+	return std::to_string(date.year) + "-" + format_zero_padding(date.month) + "-"
+		 + format_zero_padding(date.day);
+}
+
+mirai::date slint_date_to_mirai_date(const ui::Date &date)
+{
+	return mirai::date(
+		date.year, static_cast<unsigned>(date.month), static_cast<unsigned>(date.day)
+	);
+}
+
+ui::Date mirai_date_to_slint_date(const mirai::date &date)
+{
+	return {
+		.year = date.year,
+		.month = static_cast<int>(date.month),
+		.day = static_cast<int>(date.day),
+	};
+}
+
+ui::Time mirai_time_to_slint_time(const mirai::time &time)
+{
+	return {.hour = time.hour, .minute = time.minute, .second = 0};
+}
+
+mirai::time slint_time_to_mirai_time(const ui::Time &time)
+{
+	return mirai::time{time.hour, time.minute};
+}