package views

import "thamanyah/cms/v2/internal/views/layouts"

templ VideoUpload() {
	@layouts.Layout("Upload Video · Thamanyah CMS") {
		<h1>Upload a video</h1>
		<p>Provide the video file along with its metadata.</p>
		<form id="upload-form">
			<div class="field">
				<label for="title">Title</label>
				<input type="text" id="title" name="title" required/>
			</div>
			<div class="field">
				<label for="description">Description</label>
				<textarea id="description" name="description" rows="4"></textarea>
			</div>
			<div class="field">
				<label for="category">Category</label>
				<select id="category" name="category">
					<option value="documentary">Documentary</option>
					<option value="news">News</option>
					<option value="entertainment">Entertainment</option>
					<option value="podcast">Podcast</option>
					<option value="other">Other</option>
				</select>
			</div>
			<div class="field">
				<label for="tags">Tags</label>
				<input type="text" id="tags" name="tags" placeholder="comma, separated, tags"/>
			</div>
			<div class="field">
				<label for="video">Video file</label>
				<input type="file" id="video" name="video" accept="video/*" required/>
			</div>
			<progress id="upload-progress" value="0" max="100"></progress>
			<button type="submit">Upload</button>
		</form>
		<div id="upload-result"></div>
		<script>
				document.getElementById('upload-form').addEventListener('submit', function (evt) {
					evt.preventDefault();

					var form = evt.target;
					var fileInput = document.getElementById('video');
					var file = fileInput.files[0];
					var resultEl = document.getElementById('upload-result');
					var progressEl = document.getElementById('upload-progress');
					var button = form.querySelector('button[type="submit"]');

					function showError(message) {
						resultEl.innerHTML = '<div class="result result-error"><p>' + message + '</p></div>';
					}

					if (!file) {
						showError('A video file is required.');
						return;
					}

					var contentType = file.type || 'application/octet-stream';

					button.disabled = true;
					progressEl.value = 0;
					resultEl.innerHTML = '';

					fetch('/videos/presign', {
						method: 'POST',
						headers: { 'Content-Type': 'application/json' },
						body: JSON.stringify({ fileName: file.name, contentType: contentType })
					}).then(function (res) {
						return res.json().then(function (body) {
							if (!res.ok) {
								throw new Error(body.error || 'Could not prepare upload.');
							}
							return body;
						});
					}).then(function (presigned) {
						return new Promise(function (resolve, reject) {
							var xhr = new XMLHttpRequest();
							xhr.open('PUT', presigned.uploadUrl);
							xhr.setRequestHeader('Content-Type', contentType);
							xhr.upload.addEventListener('progress', function (e) {
								if (e.lengthComputable) {
									progressEl.value = Math.round((e.loaded / e.total) * 100);
								}
							});
							xhr.onload = function () {
								if (xhr.status >= 200 && xhr.status < 300) {
									resolve(presigned.key);
								} else {
									reject(new Error('Upload to storage failed.'));
								}
							};
							xhr.onerror = function () {
								reject(new Error('Upload to storage failed.'));
							};
							xhr.send(file);
						});
					}).then(function (key) {
						return fetch('/videos', {
							method: 'POST',
							headers: { 'Content-Type': 'application/json' },
							body: JSON.stringify({
								title: form.title.value.trim(),
								description: form.description.value.trim(),
								category: form.category.value,
								tags: form.tags.value.trim(),
								fileName: file.name,
								key: key
							})
						});
					}).then(function (res) {
						return res.text().then(function (html) {
							resultEl.innerHTML = html;
						});
					}).catch(function (err) {
						showError(err.message);
					}).finally(function () {
						button.disabled = false;
					});
				});
			</script>
	}
}

templ VideoUploadSuccess(v VideoMetadata) {
	<div class="result result-success">
		<h2>Upload complete</h2>
		<dl>
			<dt>Title</dt>
			<dd>{ v.Title }</dd>
			if v.Description != "" {
				<dt>Description</dt>
				<dd>{ v.Description }</dd>
			}
			<dt>Category</dt>
			<dd>{ v.Category }</dd>
			<dt>Enqueue Job ID</dt>
			<dd>{ v.JobID }</dd>
			if v.Tags != "" {
				<dt>Tags</dt>
				<dd>{ v.Tags }</dd>
			}
			<dt>File</dt>
			<dd>
				{ v.FileName } ({ formatSize(v.SizeBytes) })
			</dd>
		</dl>
	</div>
}

templ VideoUploadError(message string) {
	<div class="result result-error">
		<p style="color:green">{ message }</p>
	</div>
}