<template>
	<NewModal ref="modal" :header="`Creating a ${displayType}`">
		<form class="flex flex-col gap-4 md:w-[600px]" @submit.prevent="handleSubmit">
			<div class="flex flex-col gap-2">
				<div class="font-semibold text-contrast">Name</div>
				<input
					ref="createInput"
					v-model="itemName"
					autofocus
					type="text"
					class="bg-bg-input w-full rounded-lg p-4"
					:placeholder="`e.g. ${type === 'file' ? 'config.yml' : 'plugins'}`"
					required
				/>
				<div v-if="submitted && error" class="text-red">{{ error }}</div>
			</div>
			<div class="flex justify-start gap-4">
				<ButtonStyled color="brand">
					<button :disabled="!!error" type="submit">
						<PlusIcon class="h-5 w-5" />
						Create {{ displayType }}
					</button>
				</ButtonStyled>
				<ButtonStyled>
					<button type="button" @click="hide">
						<XIcon class="h-5 w-5" />
						Cancel
					</button>
				</ButtonStyled>
			</div>
		</form>
	</NewModal>
</template>

<script setup lang="ts">
import { PlusIcon, XIcon } from '@modrinth/assets'
import { ButtonStyled, NewModal } from '@modrinth/ui'
import { computed, nextTick, ref } from 'vue'

const props = defineProps<{
	type: 'file' | 'directory'
}>()

const emit = defineEmits<{
	(e: 'create', name: string): void
}>()

const modal = ref<typeof NewModal>()
const displayType = computed(() => (props.type === 'directory' ? 'folder' : props.type))
const createInput = ref<HTMLInputElement | null>(null)
const itemName = ref('')
const submitted = ref(false)

const error = computed(() => {
	if (!itemName.value) {
		return 'Name is required.'
	}
	if (props.type === 'file') {
		const validPattern = /^[a-zA-Z0-9-_.\s]+$/
		if (!validPattern.test(itemName.value)) {
			return 'Name must contain only alphanumeric characters, dashes, underscores, dots, or spaces.'
		}
	} else {
		const validPattern = /^[a-zA-Z0-9-_\s]+$/
		if (!validPattern.test(itemName.value)) {
			return 'Name must contain only alphanumeric characters, dashes, underscores, or spaces.'
		}
	}
	return ''
})

const handleSubmit = () => {
	submitted.value = true
	if (!error.value) {
		emit('create', itemName.value)
		hide()
	}
}

const show = () => {
	itemName.value = ''
	submitted.value = false
	modal.value?.show()
	nextTick(() => {
		setTimeout(() => {
			createInput.value?.focus()
		}, 100)
	})
}

const hide = () => {
	modal.value?.hide()
}

defineExpose({ show, hide })
</script>
