<script lang="ts">
	import { isValidUrl } from '$lib';
	import type { Collection, Checklist, User, ChecklistItem } from '$lib/types';
	import { createEventDispatcher } from 'svelte';
	const dispatch = createEventDispatcher();
	import { onMount } from 'svelte';
	let modal: HTMLDialogElement;

	export let checklist: Checklist | null = null;
	export let collection: Collection;
	export let user: User | null = null;

	let items: ChecklistItem[] = [];

	items = checklist?.items || [];

	let warning: string | null = '';

	let newStatus: boolean = false;
	let newItem: string = '';

	function addItem() {
		if (newItem.trim() == '') {
			warning = 'Item cannot be empty';
			return;
		}
		if (newChecklist.items.find((item) => item.name.trim() == newItem)) {
			warning = 'Item already exists';
			return;
		}
		items = [
			...items,
			{
				name: newItem,
				is_checked: newStatus,
				id: 0,
				user_id: 0,
				checklist: 0,
				created_at: '',
				updated_at: ''
			}
		];

		newChecklist.items = items;

		newItem = '';
		newStatus = false;
		warning = '';
	}

	let newChecklist = {
		name: checklist?.name || '',
		date: checklist?.date || undefined || null,
		items: checklist?.items || [],
		collection: collection.id,
		is_public: collection.is_public
	};

	let initialName: string = checklist?.name || '';

	onMount(() => {
		modal = document.getElementById('my_modal_1') as HTMLDialogElement;
		if (modal) {
			modal.showModal();
		}
	});

	function close() {
		dispatch('close');
	}

	function removeItem(i: number) {
		items = items.filter((_, index) => index !== i);
		newChecklist.items = items;
	}

	function handleKeydown(event: KeyboardEvent) {
		if (event.key === 'Escape') {
			dispatch('close');
		}
	}

	async function save() {
		// handles empty date
		if (newChecklist.date == '') {
			newChecklist.date = null;
		}

		if (checklist && checklist.id) {
			console.log('newNote', newChecklist);
			const res = await fetch(`/api/checklists/${checklist.id}`, {
				method: 'PATCH',
				headers: {
					'Content-Type': 'application/json'
				},
				body: JSON.stringify(newChecklist)
			});
			if (res.ok) {
				let data = await res.json();
				if (data) {
					dispatch('save', data);
				}
			} else {
				console.error('Failed to save checklist');
			}
		} else {
			console.log('newNote', newChecklist);
			const res = await fetch(`/api/checklists/`, {
				method: 'POST',
				headers: {
					'Content-Type': 'application/json'
				},
				body: JSON.stringify(newChecklist)
			});
			if (res.ok) {
				let data = await res.json();
				if (data) {
					dispatch('create', data);
				}
			} else {
				let data = await res.json();
				console.error('Failed to save checklist', data);
				console.error('Failed to save checklist');
			}
		}
	}
</script>

<dialog id="my_modal_1" class="modal">
	<!-- svelte-ignore a11y-no-noninteractive-element-interactions -->
	<!-- svelte-ignore a11y-no-noninteractive-tabindex -->
	<div class="modal-box" role="dialog" on:keydown={handleKeydown} tabindex="0">
		<h3 class="font-bold text-lg mb-2">Checklist Editor</h3>
		{#if initialName}
			<p class="font-semibold text-md mb-2">Editing checklist {initialName}</p>
		{/if}

		{#if (checklist && user?.pk == checklist?.user_id) || !checklist}
			<form on:submit|preventDefault>
				<div class="form-control mb-2">
					<label for="name">Name</label>
					<input
						type="text"
						id="name"
						class="input input-bordered w-full max-w-xs"
						bind:value={newChecklist.name}
					/>
				</div>
				<div class="form-control mb-2">
					<label for="content">Date</label>
					<input
						type="date"
						id="date"
						name="date"
						min={collection.start_date || ''}
						max={collection.end_date || ''}
						bind:value={newChecklist.date}
						class="input input-bordered w-full max-w-xs mt-1"
					/>
				</div>
				<div class="form-control mb-2 flex flex-row">
					<input type="checkbox" bind:checked={newStatus} class="checkbox mt-4 mr-2" />
					<input
						type="text"
						id="new_item"
						placeholder="New Item"
						name="new_item"
						bind:value={newItem}
						class="input input-bordered w-full max-w-xs mt-1"
						on:keydown={(e) => {
							if (e.key === 'Enter') {
								e.preventDefault();
								addItem();
							}
						}}
					/>
					<button
						type="button"
						class="btn btn-sm btn-primary absolute right-0 mt-2.5 mr-4"
						on:click={addItem}
					>
						Add
					</button>
				</div>
				{#if items.length > 0}
					<div class="divider"></div>
					<h2 class=" text-xl font-semibold mb-4 -mt-3">Items</h2>
				{/if}

				{#each items as item, i}
					<div class="form-control mb-2 flex flex-row">
						<input type="checkbox" bind:checked={item.is_checked} class="checkbox mt-4 mr-2" />
						<input
							type="text"
							id="item_{i}"
							name="item_{i}"
							bind:value={item.name}
							class="input input-bordered w-full max-w-xs mt-1"
						/>
						<button
							type="button"
							class="btn btn-sm btn-error absolute right-0 mt-2.5 mr-4"
							on:click={() => removeItem(i)}
						>
							Remove
						</button>
					</div>
				{/each}

				{#if warning}
					<div role="alert" class="alert alert-error">
						<svg
							xmlns="http://www.w3.org/2000/svg"
							class="h-6 w-6 shrink-0 stroke-current"
							fill="none"
							viewBox="0 0 24 24"
						>
							<path
								stroke-linecap="round"
								stroke-linejoin="round"
								stroke-width="2"
								d="M10 14l2-2m0 0l2-2m-2 2l-2-2m2 2l2 2m7-2a9 9 0 11-18 0 9 9 0 0118 0z"
							/>
						</svg>
						<span>{warning}</span>
					</div>
				{/if}

				<button class="btn btn-primary mr-1" on:click={save}>Save</button>
				<button class="btn btn-neutral" on:click={close}>Close</button>

				{#if collection.is_public}
					<div role="alert" class="alert mt-4">
						<svg
							xmlns="http://www.w3.org/2000/svg"
							fill="none"
							viewBox="0 0 24 24"
							class="h-6 w-6 shrink-0 stroke-current"
						>
							<path
								stroke-linecap="round"
								stroke-linejoin="round"
								stroke-width="2"
								d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"
							></path>
						</svg>
						<span>This checklist is public because it is in a public collection.</span>
					</div>
				{/if}
			</form>
		{:else}
			<form>
				<div class="form-control mb-2">
					<label for="name">Name</label>
					<input
						type="text"
						id="name"
						class="input input-bordered w-full max-w-xs"
						bind:value={newChecklist.name}
						readonly
					/>
				</div>
				<div class="form-control mb-2">
					<label for="content">Date</label>
					<input
						type="date"
						id="date"
						name="date"
						min={collection.start_date || ''}
						max={collection.end_date || ''}
						bind:value={newChecklist.date}
						readonly
						class="input input-bordered w-full max-w-xs mt-1"
					/>
				</div>

				{#if items.length > 0}
					<div class="divider"></div>
					<h2 class=" text-xl font-semibold mb-4 -mt-3">Items</h2>
				{/if}

				{#each items as item, i}
					<div class="form-control mb-2 flex flex-row">
						<input
							type="checkbox"
							checked={item.is_checked}
							class="checkbox mt-4 mr-2"
							readonly={true}
							disabled
						/>
						<input
							type="text"
							id="item_{i}"
							name="item_{i}"
							bind:value={item.name}
							readonly
							class="input input-bordered w-full max-w-xs mt-1"
						/>
					</div>
				{/each}

				<button class="btn btn-neutral" on:click={close}>Close</button>
			</form>
		{/if}
	</div>
</dialog>
