import { Textarea } from "@/components/ui/textarea";
import { FontPicker } from "@/components/ui/font-picker";
import type { TextElement } from "@/types/timeline";
import { NumberField } from "@/components/ui/number-field";
import { useRef } from "react";
import {
	Section,
	SectionContent,
	SectionField,
	SectionFields,
	SectionHeader,
	SectionTitle,
} from "./section";
import { ColorPicker } from "@/components/ui/color-picker";
import { Button } from "@/components/ui/button";
import { uppercase } from "@/utils/string";
import { clamp } from "@/utils/math";
import { useEditor } from "@/hooks/use-editor";
import { DEFAULT_COLOR } from "@/constants/project-constants";
import {
	CORNER_RADIUS_MAX,
	CORNER_RADIUS_MIN,
	DEFAULT_LETTER_SPACING,
	DEFAULT_LINE_HEIGHT,
	DEFAULT_TEXT_BACKGROUND,
	DEFAULT_TEXT_ELEMENT,
	MAX_FONT_SIZE,
	MIN_FONT_SIZE,
} from "@/constants/text-constants";
import { usePropertyDraft } from "./hooks/use-property-draft";
import { TransformSection, BlendingSection } from "./sections";
import { HugeiconsIcon } from "@hugeicons/react";
import {
	TextFontIcon,
	ViewIcon,
	ViewOffSlashIcon,
} from "@hugeicons/core-free-icons";
import { OcTextHeightIcon, OcTextWidthIcon } from "@opencut/ui/icons";
import { cn } from "@/utils/ui";

export function TextProperties({
	element,
	trackId,
}: {
	element: TextElement;
	trackId: string;
}) {
	return (
		<div className="flex h-full flex-col">
			<ContentSection element={element} trackId={trackId} />
			<TransformSection element={element} trackId={trackId} />
			<BlendingSection element={element} trackId={trackId} />
			<TypographySection element={element} trackId={trackId} />
			<SpacingSection element={element} trackId={trackId} />
			<BackgroundSection element={element} trackId={trackId} />
		</div>
	);
}

function ContentSection({
	element,
	trackId,
}: {
	element: TextElement;
	trackId: string;
}) {
	const editor = useEditor();

	const content = usePropertyDraft({
		displayValue: element.content,
		parse: (input) => input,
		onPreview: (value) =>
			editor.timeline.previewElements({
				updates: [
					{ trackId, elementId: element.id, updates: { content: value } },
				],
			}),
		onCommit: () => editor.timeline.commitPreview(),
	});

	return (
		<Section collapsible sectionKey="text:content" showTopBorder={false}>
			<SectionHeader><SectionTitle>Content</SectionTitle></SectionHeader>
			<SectionContent>
				<Textarea
					placeholder="Name"
					value={content.displayValue}
					className="min-h-20"
					onFocus={content.onFocus}
					onChange={content.onChange}
					onBlur={content.onBlur}
				/>
			</SectionContent>
		</Section>
	);
}

function TypographySection({
	element,
	trackId,
}: {
	element: TextElement;
	trackId: string;
}) {
	const editor = useEditor();

	const fontSize = usePropertyDraft({
		displayValue: element.fontSize.toString(),
		parse: (input) => {
			const parsed = parseFloat(input);
			if (Number.isNaN(parsed)) return null;
			return clamp({ value: parsed, min: MIN_FONT_SIZE, max: MAX_FONT_SIZE });
		},
		onPreview: (value) =>
			editor.timeline.previewElements({
				updates: [
					{ trackId, elementId: element.id, updates: { fontSize: value } },
				],
			}),
		onCommit: () => editor.timeline.commitPreview(),
	});

	return (
		<Section collapsible sectionKey="text:typography">
			<SectionHeader><SectionTitle>Typography</SectionTitle></SectionHeader>
			<SectionContent>
				<SectionFields>
					<SectionField label="Font">
						<FontPicker
							defaultValue={element.fontFamily}
							onValueChange={(value) =>
								editor.timeline.updateElements({
									updates: [
										{
											trackId,
											elementId: element.id,
											updates: { fontFamily: value },
										},
									],
								})
							}
						/>
					</SectionField>
					<SectionField label="Size">
						<NumberField
							value={fontSize.displayValue}
							min={MIN_FONT_SIZE}
							max={MAX_FONT_SIZE}
							onFocus={fontSize.onFocus}
							onChange={fontSize.onChange}
							onBlur={fontSize.onBlur}
							onScrub={fontSize.scrubTo}
							onScrubEnd={fontSize.commitScrub}
							onReset={() =>
								editor.timeline.updateElements({
									updates: [
										{
											trackId,
											elementId: element.id,
											updates: { fontSize: DEFAULT_TEXT_ELEMENT.fontSize },
										},
									],
								})
							}
							isDefault={element.fontSize === DEFAULT_TEXT_ELEMENT.fontSize}
							icon={<HugeiconsIcon icon={TextFontIcon} />}
						/>
					</SectionField>
					<SectionField label="Color">
						<ColorPicker
							value={uppercase({
								string: (element.color || "FFFFFF").replace("#", ""),
							})}
							onChange={(color) =>
								editor.timeline.previewElements({
									updates: [
										{
											trackId,
											elementId: element.id,
											updates: { color: `#${color}` },
										},
									],
								})
							}
							onChangeEnd={() => editor.timeline.commitPreview()}
						/>
					</SectionField>
				</SectionFields>
			</SectionContent>
		</Section>
	);
}

function SpacingSection({
	element,
	trackId,
}: {
	element: TextElement;
	trackId: string;
}) {
	const editor = useEditor();

	const letterSpacing = usePropertyDraft({
		displayValue: Math.round(
			element.letterSpacing ?? DEFAULT_LETTER_SPACING,
		).toString(),
		parse: (input) => {
			const parsed = parseFloat(input);
			return Number.isNaN(parsed) ? null : Math.round(parsed);
		},
		onPreview: (value) =>
			editor.timeline.previewElements({
				updates: [
					{ trackId, elementId: element.id, updates: { letterSpacing: value } },
				],
			}),
		onCommit: () => editor.timeline.commitPreview(),
	});

	const lineHeight = usePropertyDraft({
		displayValue: (element.lineHeight ?? DEFAULT_LINE_HEIGHT).toFixed(1),
		parse: (input) => {
			const parsed = parseFloat(input);
			return Number.isNaN(parsed)
				? null
				: Math.max(0.1, Math.round(parsed * 10) / 10);
		},
		onPreview: (value) =>
			editor.timeline.previewElements({
				updates: [
					{ trackId, elementId: element.id, updates: { lineHeight: value } },
				],
			}),
		onCommit: () => editor.timeline.commitPreview(),
	});

	return (
		<Section collapsible sectionKey="text:spacing" showBottomBorder={false}>
			<SectionHeader><SectionTitle>Spacing</SectionTitle></SectionHeader>
			<SectionContent>
				<div className="flex items-start gap-2">
					<SectionField label="Letter spacing" className="w-1/2">
						<NumberField
							value={letterSpacing.displayValue}
							onFocus={letterSpacing.onFocus}
							onChange={letterSpacing.onChange}
							onBlur={letterSpacing.onBlur}
							onScrub={letterSpacing.scrubTo}
							onScrubEnd={letterSpacing.commitScrub}
							onReset={() =>
								editor.timeline.updateElements({
									updates: [
										{
											trackId,
											elementId: element.id,
											updates: { letterSpacing: DEFAULT_LETTER_SPACING },
										},
									],
								})
							}
							isDefault={
								(element.letterSpacing ?? DEFAULT_LETTER_SPACING) ===
								DEFAULT_LETTER_SPACING
							}
							icon={<OcTextWidthIcon size={14} />}
						/>
					</SectionField>
					<SectionField label="Line height" className="w-1/2">
						<NumberField
							value={lineHeight.displayValue}
							onFocus={lineHeight.onFocus}
							onChange={lineHeight.onChange}
							onBlur={lineHeight.onBlur}
							onScrub={lineHeight.scrubTo}
							onScrubEnd={lineHeight.commitScrub}
							onReset={() =>
								editor.timeline.updateElements({
									updates: [
										{
											trackId,
											elementId: element.id,
											updates: { lineHeight: DEFAULT_LINE_HEIGHT },
										},
									],
								})
							}
							isDefault={
								(element.lineHeight ?? DEFAULT_LINE_HEIGHT) ===
								DEFAULT_LINE_HEIGHT
							}
							icon={<OcTextHeightIcon size={14} />}
						/>
					</SectionField>
				</div>
			</SectionContent>
		</Section>
	);
}

function BackgroundSection({
	element,
	trackId,
}: {
	element: TextElement;
	trackId: string;
}) {
	const editor = useEditor();
	const lastSelectedColor = useRef(DEFAULT_COLOR);

	const cornerRadius = usePropertyDraft({
		displayValue: Math.round(
			clamp({
				value: element.background.cornerRadius ?? 0,
				min: CORNER_RADIUS_MIN,
				max: CORNER_RADIUS_MAX,
			}),
		).toString(),
		parse: (input) => {
			const parsed = parseFloat(input);
			if (Number.isNaN(parsed)) return null;
			return clamp({
				value: Math.round(parsed),
				min: CORNER_RADIUS_MIN,
				max: CORNER_RADIUS_MAX,
			});
		},
		onPreview: (value) =>
			editor.timeline.previewElements({
				updates: [
					{
						trackId,
						elementId: element.id,
						updates: {
							background: { ...element.background, cornerRadius: value },
						},
					},
				],
			}),
		onCommit: () => editor.timeline.commitPreview(),
	});

	const paddingX = usePropertyDraft({
		displayValue: Math.round(
			element.background.paddingX ?? DEFAULT_TEXT_BACKGROUND.paddingX,
		).toString(),
		parse: (input) => {
			const parsed = parseFloat(input);
			return Number.isNaN(parsed) ? null : Math.max(0, Math.round(parsed));
		},
		onPreview: (value) =>
			editor.timeline.previewElements({
				updates: [
					{
						trackId,
						elementId: element.id,
						updates: { background: { ...element.background, paddingX: value } },
					},
				],
			}),
		onCommit: () => editor.timeline.commitPreview(),
	});

	const paddingY = usePropertyDraft({
		displayValue: Math.round(
			element.background.paddingY ?? DEFAULT_TEXT_BACKGROUND.paddingY,
		).toString(),
		parse: (input) => {
			const parsed = parseFloat(input);
			return Number.isNaN(parsed) ? null : Math.max(0, Math.round(parsed));
		},
		onPreview: (value) =>
			editor.timeline.previewElements({
				updates: [
					{
						trackId,
						elementId: element.id,
						updates: { background: { ...element.background, paddingY: value } },
					},
				],
			}),
		onCommit: () => editor.timeline.commitPreview(),
	});

	const offsetX = usePropertyDraft({
		displayValue: Math.round(element.background.offsetX ?? 0).toString(),
		parse: (input) => {
			const parsed = parseFloat(input);
			return Number.isNaN(parsed) ? null : Math.round(parsed);
		},
		onPreview: (value) =>
			editor.timeline.previewElements({
				updates: [
					{
						trackId,
						elementId: element.id,
						updates: { background: { ...element.background, offsetX: value } },
					},
				],
			}),
		onCommit: () => editor.timeline.commitPreview(),
	});

	const offsetY = usePropertyDraft({
		displayValue: Math.round(element.background.offsetY ?? 0).toString(),
		parse: (input) => {
			const parsed = parseFloat(input);
			return Number.isNaN(parsed) ? null : Math.round(parsed);
		},
		onPreview: (value) =>
			editor.timeline.previewElements({
				updates: [
					{
						trackId,
						elementId: element.id,
						updates: { background: { ...element.background, offsetY: value } },
					},
				],
			}),
		onCommit: () => editor.timeline.commitPreview(),
	});

	const toggleBackgroundEnabled = () => {
		const enabled = !element.background.enabled;
		const color =
			enabled && element.background.color === "transparent"
				? lastSelectedColor.current
				: element.background.color;
		editor.timeline.updateElements({
			updates: [
				{
					trackId,
					elementId: element.id,
					updates: {
						background: {
							...element.background,
							enabled,
							color,
						},
					},
				},
			],
		});
	};

	return (
		<Section
			collapsible
			defaultOpen={element.background.enabled}
			sectionKey="text:background"
		>
			<SectionHeader
				trailing={
					<Button
						variant="ghost"
						size="icon"
						onClick={(event) => {
							event.stopPropagation();
							toggleBackgroundEnabled();
						}}
					>
						<HugeiconsIcon
							icon={element.background.enabled ? ViewIcon : ViewOffSlashIcon}
						/>
					</Button>
				}
			>
				<SectionTitle>Background</SectionTitle>
			</SectionHeader>
			<SectionContent
				className={cn(
					!element.background.enabled && "pointer-events-none opacity-50",
				)}
			>
				<SectionFields>
					<SectionField label="Color">
						<ColorPicker
							value={
								!element.background.enabled ||
								element.background.color === "transparent"
									? lastSelectedColor.current.replace("#", "")
									: element.background.color.replace("#", "")
							}
							onChange={(color) => {
								const hexColor = `#${color}`;
								if (color !== "transparent") {
									lastSelectedColor.current = hexColor;
								}
								editor.timeline.previewElements({
									updates: [
										{
											trackId,
											elementId: element.id,
											updates: {
												background: { ...element.background, color: hexColor },
											},
										},
									],
								});
							}}
							onChangeEnd={() => editor.timeline.commitPreview()}
						/>
					</SectionField>
					<div className="flex items-start gap-2">
						<SectionField label="Width" className="w-1/2">
							<NumberField
								icon="W"
								value={paddingX.displayValue}
								min={0}
								onFocus={paddingX.onFocus}
								onChange={paddingX.onChange}
								onBlur={paddingX.onBlur}
								onScrub={paddingX.scrubTo}
								onScrubEnd={paddingX.commitScrub}
								onReset={() =>
									editor.timeline.updateElements({
										updates: [
											{
												trackId,
												elementId: element.id,
												updates: {
													background: {
														...element.background,
														paddingX: DEFAULT_TEXT_BACKGROUND.paddingX,
													},
												},
											},
										],
									})
								}
								isDefault={
									(element.background.paddingX ??
										DEFAULT_TEXT_BACKGROUND.paddingX) ===
									DEFAULT_TEXT_BACKGROUND.paddingX
								}
							/>
						</SectionField>
						<SectionField label="Height" className="w-1/2">
							<NumberField
								icon="H"
								value={paddingY.displayValue}
								min={0}
								onFocus={paddingY.onFocus}
								onChange={paddingY.onChange}
								onBlur={paddingY.onBlur}
								onScrub={paddingY.scrubTo}
								onScrubEnd={paddingY.commitScrub}
								onReset={() =>
									editor.timeline.updateElements({
										updates: [
											{
												trackId,
												elementId: element.id,
												updates: {
													background: {
														...element.background,
														paddingY: DEFAULT_TEXT_BACKGROUND.paddingY,
													},
												},
											},
										],
									})
								}
								isDefault={
									(element.background.paddingY ??
										DEFAULT_TEXT_BACKGROUND.paddingY) ===
									DEFAULT_TEXT_BACKGROUND.paddingY
								}
							/>
						</SectionField>
					</div>
					<div className="flex items-start gap-2">
						<SectionField label="X-offset" className="w-1/2">
							<NumberField
								icon="X"
								value={offsetX.displayValue}
								onFocus={offsetX.onFocus}
								onChange={offsetX.onChange}
								onBlur={offsetX.onBlur}
								onScrub={offsetX.scrubTo}
								onScrubEnd={offsetX.commitScrub}
								onReset={() =>
									editor.timeline.updateElements({
										updates: [
											{
												trackId,
												elementId: element.id,
												updates: {
												background: { ...element.background, offsetX: DEFAULT_TEXT_BACKGROUND.offsetX },
											},
										},
									],
								})
							}
							isDefault={(element.background.offsetX ?? DEFAULT_TEXT_BACKGROUND.offsetX) === DEFAULT_TEXT_BACKGROUND.offsetX}
							/>
						</SectionField>
						<SectionField label="Y-offset" className="w-1/2">
							<NumberField
								icon="Y"
								value={offsetY.displayValue}
								onFocus={offsetY.onFocus}
								onChange={offsetY.onChange}
								onBlur={offsetY.onBlur}
								onScrub={offsetY.scrubTo}
								onScrubEnd={offsetY.commitScrub}
								onReset={() =>
									editor.timeline.updateElements({
										updates: [
											{
												trackId,
												elementId: element.id,
												updates: {
												background: { ...element.background, offsetY: DEFAULT_TEXT_BACKGROUND.offsetY },
											},
										},
									],
								})
							}
							isDefault={(element.background.offsetY ?? DEFAULT_TEXT_BACKGROUND.offsetY) === DEFAULT_TEXT_BACKGROUND.offsetY}
							/>
						</SectionField>
					</div>
					<SectionField label="Corner radius">
						<NumberField
							icon="R"
							value={cornerRadius.displayValue}
							min={CORNER_RADIUS_MIN}
							max={CORNER_RADIUS_MAX}
							onFocus={cornerRadius.onFocus}
							onChange={cornerRadius.onChange}
							onBlur={cornerRadius.onBlur}
							onScrub={cornerRadius.scrubTo}
							onScrubEnd={cornerRadius.commitScrub}
							onReset={() =>
								editor.timeline.updateElements({
									updates: [
										{
											trackId,
											elementId: element.id,
											updates: {
											background: {
												...element.background,
												cornerRadius: CORNER_RADIUS_MIN,
											},
											},
										},
									],
								})
							}
							isDefault={
								(element.background.cornerRadius ?? 0) === CORNER_RADIUS_MIN
							}
						/>
					</SectionField>
				</SectionFields>
			</SectionContent>
		</Section>
	);
}