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path: root/src/lib/Tools/ActivityHistory.svelte
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<script lang="ts">
	import { activityHistory, type ActivityHistoryEntry } from '$lib/AniList/activity.js';
	import { onMount } from 'svelte';
	import userIdentity from '../../stores/userIdentity.js';
	import { userIdentity as getUserIdentity } from '$lib/AniList/identity';

	export let user: any;

	let activityHistoryData: Promise<ActivityHistoryEntry[]>;
	let currentUserIdentity = { name: '', id: -1 };
	const timezoneOffset = new Date().getTimezoneOffset() * 60 * 1000;

	onMount(async () => {
		if (user !== undefined) {
			if ($userIdentity === '') {
				userIdentity.set(JSON.stringify(await getUserIdentity(user)));
			}

			currentUserIdentity = JSON.parse($userIdentity);
			currentUserIdentity.name = currentUserIdentity.name;
			activityHistoryData = activityHistory(currentUserIdentity);
			console.log(fillMissingDays(await activityHistory(currentUserIdentity)));
		}
	});

	const fillMissingDays = (inputActivities: ActivityHistoryEntry[]): ActivityHistoryEntry[] => {
		let activities = inputActivities;
		const firstDate = new Date(activities[0].date * 1000 + timezoneOffset);
		const lastDate = new Date(activities[activities.length - 1].date * 1000 + timezoneOffset);
		const currentDate = firstDate;

		while (currentDate <= lastDate) {
			const current_unix_timestamp = currentDate.getTime();
			let found = false;

			for (let i = 0; i < activities.length; i++) {
				if (activities[i].date * 1000 + timezoneOffset === current_unix_timestamp) {
					found = true;

					break;
				}
			}

			if (!found) {
				activities.push({
					date: current_unix_timestamp / 1000,
					amount: 0
				});
			}

			currentDate.setDate(currentDate.getDate() + 1);
		}

		// activities.sort((a: { date: number }, b: { date: number }) => a.date - b.date);

		return activities;
	};

	// const incrementDate = (date: Date): Date => {
	// 	date.setDate(date.getDate() + 1);

	// 	return date;
	// };
</script>

<blockquote>
	Days in risk of developing an activity history hole. (days with one activity)
</blockquote>

{#if user === undefined}
	Please log in to view this page.
{:else}
	{#await activityHistoryData}
		Loading ...
	{:then activities}
		{#if activities === undefined}
			Loading ...
		{:else}
			<ul>
				{#each fillMissingDays(activities) as activity}
					{#if activity.amount === 0}
						<li>
							{new Date(activity.date * 1000 + timezoneOffset).toDateString()}
						</li>
					{/if}
				{/each}
			</ul>
		{/if}
	{/await}
{/if}