@include 'partial/header.html'

<script src="/static/js/user_utils.js"></script>
<script src="/static/js/search.js"></script>

<h1>search</h1>

<div>
	<input type="text" name="query" id="query">
	<div>
		<p>search for:</p>
		<input type="radio" name="search-for" id="search-for-posts" value="posts" checked aria-checked>
		<label for="search-for-posts">posts</label>
		<input type="radio" name="search-for" id="search-for-users" value="users">
		<label for="search-for-users">users</label>
	</div>
	<br>
	<button id="search">search</button>
</div>

<br>

<div id="pages">
</div>

<div id="results">
</div>

<script>
	const params = new URLSearchParams(window.location.search)

	const pages = document.getElementById('pages')
	const results = document.getElementById('results')

	const query = document.getElementById('query')
	if (query.value == '' && params.get('q')) {
		query.value = params.get('q')
	}

	let limit = params.get('limit')
	if (!limit) {
		limit = 10
	}

	let offset = params.get('offset')
	if (!limit) {
		offset = 0
	}

	const add_post_result = result => {
		// same as components/post_mini.html except js
		const element = document.createElement('div')
		element.classList.add('post', 'post-mini')
		const p = document.createElement('p')

		const user_link = document.createElement('a')
		user_link.href = '/user/' + result.author.username
		const user_text = document.createElement('strong')
		user_text.innerText = get_display_name(result.author)
		user_link.appendChild(user_text)
		p.appendChild(user_link)

		p.innerHTML += ': '

		const post_link = document.createElement('a')
		post_link.href = '/post/' + result.post.id
		post_link.innerText = result.post.title
		p.appendChild(post_link)

		if (result.post.nsfw)
		{
			const nsfw_indicator = document.createElement('span')
			nsfw_indicator.classList.add('nsfw-indicator')
			nsfw_indicator.innerHTML = '(<em>nsfw</em>)';
			p.appendChild(nsfw_indicator)
		}

		element.appendChild(p)
		results.appendChild(element)
	}

	const add_user_result = user => {
		const element = document.createElement('div')
		const p = document.createElement('p')
		const user_link = document.createElement('a')
		user_link.href = '/user/' + user.username
		user_link.innerText = get_display_name(user)
		p.appendChild(user_link)
		element.appendChild(p)
		results.appendChild(element)
	}

	const add_pages = () => {
		// creates a separator
		const sep = () => {
			const span = document.createElement('span')
			span.innerText = ' - '
			pages.appendChild(span)
		}

		const first_link = document.createElement('a')
		// we escape the $ here because otherwise V will try to perform replacements at compile-time.
		//todo: report this, this behaviour should be changed or at least looked into further.
		first_link.href = '/search?q=' + query.value + '&limit=' + limit + '&offset=0'
		first_link.innerText = '0'
		pages.appendChild(first_link)

		sep()

		const back_link = document.createElement('a')
		back_link.href = '/search?q=' + query.value + '&limit=' + limit + '&offset=' + Math.min(0, offset - 10)
		back_link.innerText = '<'
		pages.appendChild(back_link)

		sep()

		const next_link = document.createElement('a')
		next_link.href = '/search?q=' + query.value + '&limit=' + limit + '&offset=' + (offset + 10)
		next_link.innerText = '>'
		pages.appendChild(next_link)
	}

	document.getElementById('search').addEventListener('click', async () => {
		results.innerHTML = '' // yeet the children!
		pages.innerHTML = '' // yeet more children!

		var search_for
		for (const radio of document.getElementsByName('search-for')) {
			if (radio.checked) {
				search_for = radio.value
				break
			}
		}
		if (search_for == undefined) {
			alert('please select either "users" or "posts" to search for.')
			return
		}

		console.log('search: ', query.value, limit, offset)

		var search_results
		if (search_for == 'users') {
			search_results = await search_users(query.value, limit, offset)
		} else if (search_for == 'posts') {
			search_results = await search_posts(query.value, limit, offset)
		} else {
			// this should never happen
			alert('something wrong occured while searching, please report this (01)')
			return
		}

		console.log(search_results)

		if (search_results.length >= 0) {
			// i iterate inside the if statements so that i do not have to perform a redundant
			// string comparison for every single result.
			if (search_for == 'users') {
				for (result of search_results) {
					add_user_result(result)
				}
			} else if (search_for == 'posts') {
				for (result of search_results) {
					add_post_result(result)
				}
			} else {
				// this should never happen
				alert('something wrong occured while searching, please report this (02)')
				return
			}

			// set up pagination, but only if we actually have pages to display
			if (offset > 0) {
				add_pages()
			}
		} else {
			results.innerText = 'no results!'
		}
	})
</script>

@include 'partial/footer.html'