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5.49.1/datetime/DateTimePicker.svelte

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+<script lang="ts">
+	import { createEventDispatcher } from "svelte";
+	import {
+		format_date,
+		generate_calendar_days,
+		calculate_display_hour,
+		convert_display_hour_to_24h,
+		month_names
+	} from "./utils";
+
+	export let selected_date: Date;
+	export let current_year: number;
+	export let current_month: number;
+	export let selected_hour: number;
+	export let selected_minute: number;
+	export let selected_second: number;
+	export let is_pm: boolean;
+	export let include_time: boolean;
+	export let position: { top: number; left: number };
+
+	const dispatch = createEventDispatcher<{
+		close: void;
+		clear: void;
+		update: { date: Date; formatted: string };
+	}>();
+
+	$: display_hour = calculate_display_hour(selected_hour, is_pm);
+	$: calendar_days = generate_calendar_days(current_year, current_month);
+
+	const select_date = (day: number): void => {
+		selected_date = new Date(
+			current_year,
+			current_month,
+			day,
+			selected_hour,
+			selected_minute,
+			selected_second
+		);
+		update_value();
+	};
+
+	const update_value = (): void => {
+		const formatted = format_date(selected_date, include_time);
+		dispatch("update", { date: selected_date, formatted });
+	};
+
+	const update_time = (): void => {
+		selected_date = new Date(
+			current_year,
+			current_month,
+			selected_date.getDate(),
+			selected_hour,
+			selected_minute,
+			selected_second
+		);
+		update_value();
+	};
+
+	const previous_month = (): void => {
+		if (current_month === 0) {
+			current_month = 11;
+			current_year--;
+		} else {
+			current_month--;
+		}
+	};
+
+	const next_month = (): void => {
+		if (current_month === 11) {
+			current_month = 0;
+			current_year++;
+		} else {
+			current_month++;
+		}
+	};
+
+	const toggle_am_pm = (): void => {
+		is_pm = !is_pm;
+		if (is_pm && selected_hour < 12) {
+			selected_hour += 12;
+		} else if (!is_pm && selected_hour >= 12) {
+			selected_hour -= 12;
+		}
+		update_time();
+	};
+
+	const update_display_hour = (new_hour: number): void => {
+		selected_hour = convert_display_hour_to_24h(new_hour, is_pm);
+		update_time();
+	};
+
+	const handle_now = (): void => {
+		const now = new Date();
+		selected_date = now;
+		current_year = now.getFullYear();
+		current_month = now.getMonth();
+		selected_hour = now.getHours();
+		selected_minute = now.getMinutes();
+		selected_second = now.getSeconds();
+		is_pm = selected_hour >= 12;
+		update_value();
+	};
+</script>
+
+<div
+	class="picker-container"
+	style="top: {position.top}px; left: {position.left}px;"
+>
+	<div class="picker">
+		<div class="picker-header">
+			<button type="button" class="nav-button" on:click={previous_month}
+				>‹</button
+			>
+			<div class="month-year">
+				{month_names[current_month]}
+				{current_year}
+			</div>
+			<button type="button" class="nav-button" on:click={next_month}>›</button>
+		</div>
+
+		<div class="calendar-grid">
+			<div class="weekdays">
+				<div class="weekday">Su</div>
+				<div class="weekday">Mo</div>
+				<div class="weekday">Tu</div>
+				<div class="weekday">We</div>
+				<div class="weekday">Th</div>
+				<div class="weekday">Fr</div>
+				<div class="weekday">Sa</div>
+			</div>
+
+			<div class="days">
+				{#each calendar_days as { day, is_current_month, is_next_month }}
+					<button
+						type="button"
+						class="day"
+						class:other-month={!is_current_month}
+						class:selected={is_current_month &&
+							day === selected_date.getDate() &&
+							current_month === selected_date.getMonth() &&
+							current_year === selected_date.getFullYear()}
+						on:click={() => {
+							if (is_current_month) {
+								select_date(day);
+							} else if (is_next_month) {
+								next_month();
+								select_date(day);
+							} else {
+								previous_month();
+								select_date(day);
+							}
+						}}
+					>
+						{day}
+					</button>
+				{/each}
+			</div>
+		</div>
+
+		{#if include_time}
+			<div class="time-picker">
+				<div class="time-inputs">
+					<div class="time-input-group">
+						<label for="hour">Hour</label>
+						<input
+							id="hour"
+							type="number"
+							min="1"
+							max="12"
+							bind:value={display_hour}
+							on:input={() => update_display_hour(display_hour)}
+						/>
+					</div>
+					<div class="time-input-group">
+						<label for="minute">Min</label>
+						<input
+							id="minute"
+							type="number"
+							min="0"
+							max="59"
+							bind:value={selected_minute}
+							on:input={update_time}
+						/>
+					</div>
+					<div class="time-input-group">
+						<label for="second">Sec</label>
+						<input
+							id="second"
+							type="number"
+							min="0"
+							max="59"
+							bind:value={selected_second}
+							on:input={update_time}
+						/>
+					</div>
+					<div class="time-input-group">
+						<span class="am-pm-label">Period</span>
+						<button
+							type="button"
+							class="am-pm-toggle"
+							on:click={toggle_am_pm}
+							aria-label="Toggle AM/PM"
+						>
+							{is_pm ? "PM" : "AM"}
+						</button>
+					</div>
+				</div>
+			</div>
+		{/if}
+
+		<div class="picker-actions">
+			<button
+				type="button"
+				class="action-button"
+				on:click={() => dispatch("clear")}
+			>
+				Clear
+			</button>
+			<div class="picker-actions-right">
+				<button type="button" class="action-button" on:click={handle_now}>
+					Now
+				</button>
+				<button
+					type="button"
+					class="action-button"
+					on:click={() => dispatch("close")}
+				>
+					Done
+				</button>
+			</div>
+		</div>
+	</div>
+</div>
+
+<style>
+	.picker-container {
+		position: fixed;
+		z-index: 9999;
+		box-shadow: var(--shadow-drop-lg);
+		border-radius: var(--radius-lg);
+		background: var(--background-fill-primary);
+		border: 1px solid var(--border-color-primary);
+	}
+
+	.picker {
+		padding: var(--size-3);
+		min-width: 280px;
+	}
+
+	.picker-header {
+		display: flex;
+		justify-content: space-between;
+		align-items: center;
+		margin-bottom: var(--size-3);
+	}
+
+	.nav-button {
+		background: none;
+		border: none;
+		font-size: var(--text-lg);
+		padding: var(--size-1);
+		border-radius: var(--radius-sm);
+		transition: var(--button-transition);
+		cursor: pointer;
+		color: var(--body-text-color-subdued);
+	}
+
+	.nav-button:hover {
+		background: var(--button-secondary-background-fill-hover);
+		color: var(--body-text-color);
+	}
+
+	.month-year {
+		font-weight: var(--weight-semibold);
+		font-size: var(--text-base);
+		color: var(--body-text-color);
+	}
+
+	.calendar-grid {
+		margin-bottom: var(--size-3);
+	}
+
+	.weekdays {
+		display: grid;
+		grid-template-columns: repeat(7, 1fr);
+		gap: 1px;
+		margin-bottom: var(--size-2);
+	}
+
+	.weekday {
+		text-align: center;
+		font-size: var(--text-sm);
+		font-weight: var(--weight-semibold);
+		color: var(--body-text-color-subdued);
+		padding: var(--size-1);
+	}
+
+	.days {
+		display: grid;
+		grid-template-columns: repeat(7, 1fr);
+		gap: 1px;
+	}
+
+	.day {
+		aspect-ratio: 1;
+		border: none;
+		background: none;
+		border-radius: var(--radius-sm);
+		font-size: var(--text-sm);
+		transition: var(--button-transition);
+		color: var(--body-text-color);
+		cursor: pointer;
+	}
+
+	.day:hover {
+		background: var(--button-secondary-background-fill-hover);
+	}
+
+	.day.other-month {
+		color: var(--body-text-color-subdued);
+	}
+
+	.day.selected {
+		background: var(--button-primary-background-fill);
+		color: var(--button-primary-text-color);
+	}
+
+	.day.selected:hover {
+		background: var(--button-primary-background-fill-hover);
+	}
+
+	.time-picker {
+		border-top: 1px solid var(--border-color-primary);
+		padding-top: var(--size-3);
+		margin-bottom: var(--size-3);
+	}
+
+	.time-inputs {
+		display: flex;
+		gap: var(--size-2);
+		justify-content: center;
+	}
+
+	.time-input-group {
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		gap: var(--size-1);
+	}
+
+	.time-input-group label {
+		font-size: var(--text-xs);
+		color: var(--body-text-color-subdued);
+		font-weight: var(--weight-semibold);
+	}
+
+	.am-pm-label {
+		font-size: var(--text-xs);
+		color: var(--body-text-color-subdued);
+		font-weight: var(--weight-semibold);
+	}
+
+	.time-input-group input {
+		width: 50px;
+		padding: var(--size-1);
+		border: 1px solid var(--input-border-color);
+		border-radius: var(--radius-sm);
+		text-align: center;
+		font-size: var(--text-sm);
+		background: var(--input-background-fill);
+		color: var(--body-text-color);
+	}
+
+	.time-input-group input:focus {
+		outline: none;
+		border-color: var(--input-border-color-focus);
+		box-shadow: var(--input-shadow-focus);
+	}
+
+	.am-pm-toggle {
+		width: 50px;
+		padding: var(--size-1);
+		border: 1px solid var(--button-primary-border-color);
+		border-radius: var(--radius-sm);
+		text-align: center;
+		font-size: var(--text-sm);
+		background: var(--button-primary-background-fill);
+		color: var(--button-primary-text-color);
+		cursor: pointer;
+		transition: var(--button-transition);
+	}
+
+	.am-pm-toggle:hover {
+		background: var(--button-primary-background-fill-hover);
+		border-color: var(--button-primary-border-color-hover);
+	}
+
+	.am-pm-toggle:focus {
+		outline: none;
+		border-color: var(--button-primary-border-color-focus);
+		box-shadow: var(--button-primary-shadow-focus);
+	}
+
+	.picker-actions {
+		display: flex;
+		gap: var(--size-2);
+		justify-content: space-between;
+		align-items: center;
+		border-top: 1px solid var(--border-color-primary);
+		padding-top: var(--size-3);
+	}
+
+	.picker-actions-right {
+		display: flex;
+		gap: var(--size-2);
+	}
+
+	.action-button {
+		padding: var(--size-1) var(--size-3);
+		border: 1px solid var(--button-secondary-border-color);
+		border-radius: var(--radius-sm);
+		background: var(--button-secondary-background-fill);
+		color: var(--button-secondary-text-color);
+		font-size: var(--text-sm);
+		transition: var(--button-transition);
+		cursor: pointer;
+	}
+
+	.action-button:hover {
+		background: var(--button-secondary-background-fill-hover);
+		border-color: var(--button-secondary-border-color-hover);
+	}
+</style>

5.49.1/datetime/Example.svelte

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+<script lang="ts">
+	export let value: string | null;
+</script>
+
+{value || ""}

5.49.1/datetime/Index.svelte

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+<script context="module" lang="ts">
+	export { default as BaseExample } from "./Example.svelte";
+</script>
+
+<script lang="ts">
+	import type { Gradio } from "@gradio/utils";
+	import { Block, BlockTitle } from "@gradio/atoms";
+	import { Calendar } from "@gradio/icons";
+	import { onDestroy } from "svelte";
+	import DateTimePicker from "./DateTimePicker.svelte";
+	import { format_date, date_is_valid_format, parse_date_value } from "./utils";
+
+	export let gradio: Gradio<{
+		change: undefined;
+		submit: undefined;
+	}>;
+	export let label = "Time";
+	export let show_label = true;
+	export let info: string | undefined = undefined;
+	export let interactive: boolean;
+	$: disabled = !interactive;
+	export let elem_id = "";
+	export let elem_classes: string[] = [];
+	export let visible: boolean | "hidden" = true;
+	export let value = "";
+	let old_value = value;
+	export let scale: number | null = null;
+	export let min_width: number | undefined = undefined;
+	export let include_time = true;
+
+	let show_picker = false;
+	let picker_ref: HTMLDivElement;
+	let input_ref: HTMLInputElement;
+	let calendar_button_ref: HTMLButtonElement;
+	let picker_position = { top: 0, left: 0 };
+
+	$: if (value !== old_value) {
+		old_value = value;
+		entered_value = value;
+		update_picker_from_value();
+		gradio.dispatch("change");
+	}
+
+	let entered_value = value;
+
+	$: valid = date_is_valid_format(entered_value, include_time);
+
+	const submit_values = (): void => {
+		if (entered_value === value) return;
+		if (!date_is_valid_format(entered_value, include_time)) return;
+		old_value = value = entered_value;
+		gradio.dispatch("change");
+	};
+
+	let current_year = new Date().getFullYear();
+	let current_month = new Date().getMonth();
+	let selected_date = new Date();
+	let selected_hour = new Date().getHours();
+	let selected_minute = new Date().getMinutes();
+	let selected_second = new Date().getSeconds();
+	let is_pm = selected_hour >= 12;
+
+	const update_picker_from_value = (): void => {
+		const parsed = parse_date_value(entered_value, include_time);
+		selected_date = parsed.selected_date;
+		current_year = parsed.current_year;
+		current_month = parsed.current_month;
+		selected_hour = parsed.selected_hour;
+		selected_minute = parsed.selected_minute;
+		selected_second = parsed.selected_second;
+		is_pm = parsed.is_pm;
+	};
+
+	const calculate_picker_position = (): void => {
+		if (calendar_button_ref) {
+			const rect = calendar_button_ref.getBoundingClientRect();
+			picker_position = {
+				top: rect.bottom + 4,
+				left: rect.right - 280
+			};
+		}
+	};
+
+	const toggle_picker = (event: MouseEvent): void => {
+		if (!disabled) {
+			event.stopPropagation();
+			show_picker = !show_picker;
+			if (show_picker) {
+				update_picker_from_value();
+				calculate_picker_position();
+				setTimeout(() => {
+					if (typeof window !== "undefined") {
+						window.addEventListener("click", handle_click_outside);
+						window.addEventListener("scroll", handle_scroll, true);
+					}
+				}, 10);
+			} else if (typeof window !== "undefined") {
+				window.removeEventListener("click", handle_click_outside);
+				window.removeEventListener("scroll", handle_scroll, true);
+			}
+		}
+	};
+
+	const close_picker = (): void => {
+		show_picker = false;
+		if (typeof window !== "undefined") {
+			window.removeEventListener("click", handle_click_outside);
+			window.removeEventListener("scroll", handle_scroll, true);
+		}
+	};
+
+	const handle_click_outside = (event: MouseEvent): void => {
+		if (
+			show_picker &&
+			picker_ref &&
+			!picker_ref.contains(event.target as Node) &&
+			calendar_button_ref &&
+			!calendar_button_ref.contains(event.target as Node)
+		) {
+			close_picker();
+		}
+	};
+
+	const handle_scroll = (): void => {
+		if (show_picker) {
+			calculate_picker_position();
+		}
+	};
+
+	const handle_picker_update = (
+		event: CustomEvent<{ date: Date; formatted: string }>
+	): void => {
+		entered_value = event.detail.formatted;
+		submit_values();
+	};
+
+	const handle_picker_clear = (): void => {
+		entered_value = "";
+		value = "";
+		close_picker();
+		gradio.dispatch("change");
+	};
+
+	onDestroy(() => {
+		if (typeof window !== "undefined") {
+			window.removeEventListener("click", handle_click_outside);
+			window.removeEventListener("scroll", handle_scroll, true);
+		}
+	});
+
+	update_picker_from_value();
+</script>
+
+<Block
+	{visible}
+	{elem_id}
+	{elem_classes}
+	{scale}
+	{min_width}
+	allow_overflow={false}
+	padding={true}
+>
+	<div class="label-content">
+		<BlockTitle {show_label} {info}>{label}</BlockTitle>
+	</div>
+	<div class="timebox">
+		<input
+			bind:this={input_ref}
+			class="time"
+			bind:value={entered_value}
+			class:invalid={!valid}
+			on:keydown={(evt) => {
+				if (evt.key === "Enter") {
+					submit_values();
+					gradio.dispatch("submit");
+				}
+			}}
+			on:blur={submit_values}
+			{disabled}
+			placeholder={include_time ? "YYYY-MM-DD HH:MM:SS" : "YYYY-MM-DD"}
+		/>
+
+		{#if interactive}
+			<button
+				bind:this={calendar_button_ref}
+				class="calendar"
+				{disabled}
+				on:click={toggle_picker}
+			>
+				<Calendar />
+			</button>
+		{/if}
+	</div>
+
+	{#if show_picker}
+		<div bind:this={picker_ref}>
+			<DateTimePicker
+				bind:selected_date
+				bind:current_year
+				bind:current_month
+				bind:selected_hour
+				bind:selected_minute
+				bind:selected_second
+				bind:is_pm
+				{include_time}
+				position={picker_position}
+				on:update={handle_picker_update}
+				on:clear={handle_picker_clear}
+				on:close={close_picker}
+			/>
+		</div>
+	{/if}
+</Block>
+
+<style>
+	.label-content {
+		display: flex;
+		justify-content: space-between;
+		align-items: flex-start;
+	}
+
+	button {
+		cursor: pointer;
+		color: var(--body-text-color-subdued);
+	}
+
+	button:hover {
+		color: var(--body-text-color);
+	}
+
+	::placeholder {
+		color: var(--input-placeholder-color);
+	}
+
+	.timebox {
+		flex-grow: 1;
+		flex-shrink: 1;
+		display: flex;
+		position: relative;
+		background: var(--input-background-fill);
+	}
+
+	.timebox :global(svg) {
+		height: 18px;
+	}
+
+	.time {
+		padding: var(--input-padding);
+		color: var(--body-text-color);
+		font-weight: var(--input-text-weight);
+		font-size: var(--input-text-size);
+		line-height: var(--line-sm);
+		outline: none;
+		flex-grow: 1;
+		background: none;
+		border: var(--input-border-width) solid var(--input-border-color);
+		border-right: none;
+		border-top-left-radius: var(--input-radius);
+		border-bottom-left-radius: var(--input-radius);
+		box-shadow: var(--input-shadow);
+	}
+
+	.time:disabled {
+		border-right: var(--input-border-width) solid var(--input-border-color);
+		border-top-right-radius: var(--input-radius);
+		border-bottom-right-radius: var(--input-radius);
+	}
+
+	.time.invalid {
+		color: var(--body-text-color-subdued);
+	}
+
+	.calendar {
+		display: inline-flex;
+		justify-content: center;
+		align-items: center;
+		transition: var(--button-transition);
+		box-shadow: var(--button-primary-shadow);
+		text-align: center;
+		background: var(--button-secondary-background-fill);
+		color: var(--button-secondary-text-color);
+		font-weight: var(--button-large-text-weight);
+		font-size: var(--button-large-text-size);
+		border-top-right-radius: var(--input-radius);
+		border-bottom-right-radius: var(--input-radius);
+		padding: var(--size-2);
+		border: var(--input-border-width) solid var(--input-border-color);
+	}
+
+	.calendar:hover {
+		background: var(--button-secondary-background-fill-hover);
+		box-shadow: var(--button-primary-shadow-hover);
+	}
+
+	.calendar:active {
+		box-shadow: var(--button-primary-shadow-active);
+	}
+</style>

5.49.1/datetime/package.json

@@ -0,0 +1,41 @@
+{
+	"name": "@gradio/datetime",
+	"version": "0.3.22",
+	"description": "Gradio UI packages",
+	"type": "module",
+	"author": "",
+	"license": "ISC",
+	"private": false,
+	"main_changeset": true,
+	"main": "Index.svelte",
+	"exports": {
+		".": {
+			"gradio": "./Index.svelte",
+			"svelte": "./dist/Index.svelte",
+			"types": "./dist/Index.svelte.d.ts"
+		},
+		"./example": {
+			"gradio": "./Example.svelte",
+			"svelte": "./dist/Example.svelte",
+			"types": "./dist/Example.svelte.d.ts"
+		},
+		"./package.json": "./package.json"
+	},
+	"dependencies": {
+		"@gradio/atoms": "workspace:^",
+		"@gradio/icons": "workspace:^",
+		"@gradio/statustracker": "workspace:^",
+		"@gradio/utils": "workspace:^"
+	},
+	"peerDependencies": {
+		"svelte": "^4.0.0"
+	},
+	"devDependencies": {
+		"@gradio/preview": "workspace:^"
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/gradio-app/gradio.git",
+		"directory": "js/datetime"
+	}
+}

5.49.1/datetime/utils.ts

@@ -0,0 +1,183 @@
+export const format_date = (date: Date, include_time: boolean): string => {
+	if (date.toJSON() === null) return "";
+	const pad = (num: number): string => num.toString().padStart(2, "0");
+
+	const year = date.getFullYear();
+	const month = pad(date.getMonth() + 1);
+	const day = pad(date.getDate());
+	const hours = pad(date.getHours());
+	const minutes = pad(date.getMinutes());
+	const seconds = pad(date.getSeconds());
+
+	const date_str = `${year}-${month}-${day}`;
+	const time_str = `${hours}:${minutes}:${seconds}`;
+	if (include_time) {
+		return `${date_str} ${time_str}`;
+	}
+	return date_str;
+};
+
+export const date_is_valid_format = (
+	date: string | null,
+	include_time: boolean
+): boolean => {
+	if (date === null || date === "") return true;
+	const valid_regex = include_time
+		? /^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/
+		: /^\d{4}-\d{2}-\d{2}$/;
+	const is_valid_date = date.match(valid_regex) !== null;
+	const is_valid_now =
+		date.match(/^(?:\s*now\s*(?:-\s*\d+\s*[dmhs])?)?\s*$/) !== null;
+	return is_valid_date || is_valid_now;
+};
+
+export const get_days_in_month = (year: number, month: number): number => {
+	return new Date(year, month + 1, 0).getDate();
+};
+
+export const get_first_day_of_month = (year: number, month: number): number => {
+	return new Date(year, month, 1).getDay();
+};
+
+export const parse_date_value = (
+	entered_value: string,
+	include_time: boolean
+): {
+	selected_date: Date;
+	current_year: number;
+	current_month: number;
+	selected_hour: number;
+	selected_minute: number;
+	selected_second: number;
+	is_pm: boolean;
+} => {
+	if (!entered_value || entered_value === "") {
+		const now = new Date();
+		return {
+			selected_date: now,
+			current_year: now.getFullYear(),
+			current_month: now.getMonth(),
+			selected_hour: now.getHours(),
+			selected_minute: now.getMinutes(),
+			selected_second: now.getSeconds(),
+			is_pm: now.getHours() >= 12
+		};
+	}
+
+	try {
+		let date_to_parse = entered_value;
+		if (!include_time && entered_value.match(/^\d{4}-\d{2}-\d{2}$/)) {
+			date_to_parse += " 00:00:00";
+		}
+
+		const parsed = new Date(date_to_parse.replace(" ", "T"));
+		if (!isNaN(parsed.getTime())) {
+			return {
+				selected_date: parsed,
+				current_year: parsed.getFullYear(),
+				current_month: parsed.getMonth(),
+				selected_hour: parsed.getHours(),
+				selected_minute: parsed.getMinutes(),
+				selected_second: parsed.getSeconds(),
+				is_pm: parsed.getHours() >= 12
+			};
+		}
+	} catch (e) {
+		// fallback to current date
+	}
+
+	const now = new Date();
+	return {
+		selected_date: now,
+		current_year: now.getFullYear(),
+		current_month: now.getMonth(),
+		selected_hour: now.getHours(),
+		selected_minute: now.getMinutes(),
+		selected_second: now.getSeconds(),
+		is_pm: now.getHours() >= 12
+	};
+};
+
+export const generate_calendar_days = (
+	current_year: number,
+	current_month: number
+): {
+	day: number;
+	is_current_month: boolean;
+	is_next_month: boolean;
+}[] => {
+	const days_in_month = get_days_in_month(current_year, current_month);
+	const first_day = get_first_day_of_month(current_year, current_month);
+	const days = [];
+
+	const prev_month = current_month === 0 ? 11 : current_month - 1;
+	const prev_year = current_month === 0 ? current_year - 1 : current_year;
+	const days_in_prev_month = get_days_in_month(prev_year, prev_month);
+
+	for (let i = first_day - 1; i >= 0; i--) {
+		days.push({
+			day: days_in_prev_month - i,
+			is_current_month: false,
+			is_next_month: false
+		});
+	}
+
+	for (let day = 1; day <= days_in_month; day++) {
+		days.push({
+			day,
+			is_current_month: true,
+			is_next_month: false
+		});
+	}
+
+	const remaining_slots = 42 - days.length;
+	for (let day = 1; day <= remaining_slots; day++) {
+		days.push({
+			day,
+			is_current_month: false,
+			is_next_month: true
+		});
+	}
+
+	return days;
+};
+
+export const calculate_display_hour = (
+	selected_hour: number,
+	is_pm: boolean
+): number => {
+	return is_pm
+		? selected_hour === 0
+			? 12
+			: selected_hour > 12
+				? selected_hour - 12
+				: selected_hour
+		: selected_hour === 0
+			? 12
+			: selected_hour;
+};
+
+export const convert_display_hour_to_24h = (
+	display_hour: number,
+	is_pm: boolean
+): number => {
+	if (is_pm) {
+		return display_hour === 12 ? 12 : display_hour + 12;
+	}
+	return display_hour === 12 ? 0 : display_hour;
+};
+
+export const month_names = [
+	"January",
+	"February",
+	"March",
+	"April",
+	"May",
+	"June",
+	"July",
+	"August",
+	"September",
+	"October",
+	"November",
+	"December"
+];