<script lang="ts">
	import { createEventDispatcher } from 'svelte';

	export let instructions: any[] = [];

	const dispatch = createEventDispatcher();

	function handleChange() {
		dispatch('change', { instructions });
	}

	function updateInstructionGroupName(groupIndex: number, event: Event) {
		const target = event.target as HTMLInputElement;
		instructions[groupIndex].name = target.value;
		handleChange();
	}

	function updateStep(groupIndex: number, stepIndex: number, event: Event) {
		const target = event.target as HTMLTextAreaElement;
		instructions[groupIndex].steps[stepIndex] = target.value;
		handleChange();
	}
</script>

<style>
.instructions-editor {
	background: var(--nord0);
	border: 1px solid var(--nord3);
	border-radius: 4px;
	padding: 0.75rem;
}

@media(prefers-color-scheme: light) {
	.instructions-editor {
		background: var(--nord5);
		border-color: var(--nord3);
	}
}

.instruction-group {
	margin-bottom: 1.5rem;
}

.instruction-group:last-child {
	margin-bottom: 0;
}

.group-name {
	width: 100%;
	padding: 0.5rem;
	margin-bottom: 0.5rem;
	background: var(--nord1);
	border: 1px solid var(--nord3);
	border-radius: 4px;
	color: var(--nord6);
	font-weight: 600;
	font-size: 0.95rem;
}

@media(prefers-color-scheme: light) {
	.group-name {
		background: var(--nord6);
		color: var(--nord0);
	}
}

.step-item {
	margin-bottom: 0.75rem;
	display: flex;
	gap: 0.5rem;
	align-items: flex-start;
}

.step-number {
	min-width: 2rem;
	padding: 0.4rem 0.5rem;
	background: var(--nord3);
	border-radius: 4px;
	text-align: center;
	color: var(--nord6);
	font-weight: 600;
	font-size: 0.9rem;
}

@media(prefers-color-scheme: light) {
	.step-number {
		background: var(--nord4);
		color: var(--nord0);
	}
}

.step-item textarea {
	flex: 1;
	padding: 0.5rem;
	background: var(--nord1);
	border: 1px solid var(--nord3);
	border-radius: 4px;
	color: var(--nord6);
	font-size: 0.9rem;
	font-family: inherit;
	resize: vertical;
	min-height: 3rem;
}

@media(prefers-color-scheme: light) {
	.step-item textarea {
		background: var(--nord6);
		color: var(--nord0);
	}
}

.step-item textarea:focus {
	outline: 2px solid var(--nord14);
	border-color: var(--nord14);
}
</style>

<div class="instructions-editor">
	{#each instructions as group, groupIndex}
		<div class="instruction-group">
			<input
				type="text"
				class="group-name"
				value={group.name || ''}
				on:input={(e) => updateInstructionGroupName(groupIndex, e)}
				placeholder="Instruction section name"
			/>
			{#each group.steps as step, stepIndex}
				<div class="step-item">
					<div class="step-number">{stepIndex + 1}</div>
					<textarea
						value={step || ''}
						on:input={(e) => updateStep(groupIndex, stepIndex, e)}
						placeholder="Step description"
					/>
				</div>
			{/each}
		</div>
	{/each}
</div>
