<template>
<FormBase>
	<FormSelect v-model:value="lightTheme" v-if="!darkMode">
		<template #label>{{ $t('themeForLightMode') }}</template>
		<optgroup :label="$t('lightThemes')">
			<option v-for="x in lightThemes" :value="x.id" :key="x.id">{{ x.name }}</option>
		</optgroup>
		<optgroup :label="$t('darkThemes')">
			<option v-for="x in darkThemes" :value="x.id" :key="x.id">{{ x.name }}</option>
		</optgroup>
	</FormSelect>
	<FormSelect v-model:value="darkTheme" v-else>
		<template #label>{{ $t('themeForDarkMode') }}</template>
		<optgroup :label="$t('darkThemes')">
			<option v-for="x in darkThemes" :value="x.id" :key="x.id">{{ x.name }}</option>
		</optgroup>
		<optgroup :label="$t('lightThemes')">
			<option v-for="x in lightThemes" :value="x.id" :key="x.id">{{ x.name }}</option>
		</optgroup>
	</FormSelect>

	<FormGroup>
		<div class="rfqxtzch _formItem _formPanel">
			<div class="darkMode" :class="{ disabled: syncDeviceDarkMode }">
				<div class="toggleWrapper">
					<input type="checkbox" class="dn" id="dn" v-model="darkMode" :disabled="syncDeviceDarkMode"/>
					<label for="dn" class="toggle">
						<span class="before">{{ $t('light') }}</span>
						<span class="after">{{ $t('dark') }}</span>
						<span class="toggle__handler">
							<span class="crater crater--1"></span>
							<span class="crater crater--2"></span>
							<span class="crater crater--3"></span>
						</span>
						<span class="star star--1"></span>
						<span class="star star--2"></span>
						<span class="star star--3"></span>
						<span class="star star--4"></span>
						<span class="star star--5"></span>
						<span class="star star--6"></span>
					</label>
				</div>
			</div>
		</div>
		<FormSwitch v-model:value="syncDeviceDarkMode">{{ $t('syncDeviceDarkMode') }}</FormSwitch>
	</FormGroup>

	<FormButton primary v-if="wallpaper == null" @click="setWallpaper">{{ $t('setWallpaper') }}</FormButton>
	<FormButton primary v-else @click="wallpaper = null">{{ $t('removeWallpaper') }}</FormButton>

	<FormGroup>
		<FormLink to="https://assets.msky.cafe/theme/list" external>{{ $t('_theme.explore') }}</FormLink>
		<FormLink to="/theme-editor">{{ $t('_theme.make') }}</FormLink>
	</FormGroup>

	<FormLink to="/settings/theme/install"><template #icon><Fa :icon="faDownload"/></template>{{ $t('_theme.install') }}</FormLink>

	<FormLink to="/settings/theme/manage"><template #icon><Fa :icon="faFolderOpen"/></template>{{ $t('_theme.manage') }}</FormLink>
</FormBase>
</template>

<script lang="ts">
import { defineComponent } from 'vue';
import { faPalette, faDownload, faFolderOpen, faCheck, faTrashAlt, faEye } from '@fortawesome/free-solid-svg-icons';
import FormSwitch from '@/components/form/switch.vue';
import FormSelect from '@/components/form/select.vue';
import FormRadios from '@/components/form/radios.vue';
import FormBase from '@/components/form/base.vue';
import FormGroup from '@/components/form/group.vue';
import FormLink from '@/components/form/link.vue';
import FormButton from '@/components/form/button.vue';
import { Theme, builtinThemes, applyTheme } from '@/scripts/theme';
import { selectFile } from '@/scripts/select-file';
import { isDeviceDarkmode } from '@/scripts/is-device-darkmode';
import * as os from '@/os';

export default defineComponent({
	components: {
		FormSwitch,
		FormSelect,
		FormRadios,
		FormBase,
		FormGroup,
		FormLink,
		FormButton,
	},

	emits: ['info'],
	
	data() {
		return {
			INFO: {
				title: this.$t('theme'),
				icon: faPalette
			},
			builtinThemes,
			wallpaper: localStorage.getItem('wallpaper'),
			faPalette, faDownload, faFolderOpen, faCheck, faTrashAlt, faEye
		}
	},

	computed: {
		themes(): Theme[] {
			return builtinThemes.concat(this.$store.state.device.themes);
		},

		installedThemes(): Theme[] {
			return this.$store.state.device.themes;
		},
	
		darkThemes(): Theme[] {
			return this.themes.filter(t => t.base == 'dark' || t.kind == 'dark');
		},

		lightThemes(): Theme[] {
			return this.themes.filter(t => t.base == 'light' || t.kind == 'light');
		},
		
		darkTheme: {
			get() { return this.$store.state.device.darkTheme; },
			set(value) { this.$store.commit('device/set', { key: 'darkTheme', value }); }
		},

		lightTheme: {
			get() { return this.$store.state.device.lightTheme; },
			set(value) { this.$store.commit('device/set', { key: 'lightTheme', value }); }
		},

		darkMode: {
			get() { return this.$store.state.device.darkMode; },
			set(value) { this.$store.commit('device/set', { key: 'darkMode', value }); }
		},

		syncDeviceDarkMode: {
			get() { return this.$store.state.device.syncDeviceDarkMode; },
			set(value) { this.$store.commit('device/set', { key: 'syncDeviceDarkMode', value }); }
		},
	},

	watch: {
		darkTheme() {
			if (this.$store.state.device.darkMode) {
				applyTheme(this.themes.find(x => x.id === this.darkTheme));
			}
		},

		lightTheme() {
			if (!this.$store.state.device.darkMode) {
				applyTheme(this.themes.find(x => x.id === this.lightTheme));
			}
		},

		syncDeviceDarkMode() {
			if (this.$store.state.device.syncDeviceDarkMode) {
				this.$store.commit('device/set', { key: 'darkMode', value: isDeviceDarkmode() });
			}
		},

		wallpaper() {
			if (this.wallpaper == null) {
				localStorage.removeItem('wallpaper');
			} else {
				localStorage.setItem('wallpaper', this.wallpaper);
			}
			location.reload();
		}
	},

	mounted() {
		this.$emit('info', this.INFO);
	},

	methods: {
		setWallpaper(e) {
			selectFile(e.currentTarget || e.target, null, false).then(file => {
				this.wallpaper = file.url;
			});
		},
	}
});
</script>

<style lang="scss" scoped>
.rfqxtzch {
	padding: 16px;

	> .darkMode {
		position: relative;
		padding: 32px 0;

		&.disabled {
			opacity: 0.7;

			&, * {
				cursor: not-allowed !important;
			}
		}

		.toggleWrapper {
			position: absolute;
			top: 50%;
			left: 50%;
			overflow: hidden;
			padding: 0 100px;
			transform: translate3d(-50%, -50%, 0);

			input {
				position: absolute;
				left: -99em;
			}
		}

		.toggle {
			cursor: pointer;
			display: inline-block;
			position: relative;
			width: 90px;
			height: 50px;
			background-color: #83D8FF;
			border-radius: 90px - 6;
			transition: background-color 200ms cubic-bezier(0.445, 0.05, 0.55, 0.95) !important;

			> .before, > .after {
				position: absolute;
				top: 15px;
				font-size: 18px;
				transition: color 1s ease;
			}

			> .before {
				left: -70px;
				color: var(--accent);
			}

			> .after {
				right: -68px;
				color: var(--fg);
			}
		}

		.toggle__handler {
			display: inline-block;
			position: relative;
			z-index: 1;
			top: 3px;
			left: 3px;
			width: 50px - 6;
			height: 50px - 6;
			background-color: #FFCF96;
			border-radius: 50px;
			box-shadow: 0 2px 6px rgba(0,0,0,.3);
			transition: all 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
			transform:  rotate(-45deg);

			.crater {
				position: absolute;
				background-color: #E8CDA5;
				opacity: 0;
				transition: opacity 200ms ease-in-out !important;
				border-radius: 100%;
			}

			.crater--1 {
				top: 18px;
				left: 10px;
				width: 4px;
				height: 4px;
			}

			.crater--2 {
				top: 28px;
				left: 22px;
				width: 6px;
				height: 6px;
			}

			.crater--3 {
				top: 10px;
				left: 25px;
				width: 8px;
				height: 8px;
			}
		}

		.star {
			position: absolute;
			background-color: #ffffff;
			transition: all 300ms cubic-bezier(0.445, 0.05, 0.55, 0.95) !important;
			border-radius: 50%;
		}

		.star--1 {
			top: 10px;
			left: 35px;
			z-index: 0;
			width: 30px;
			height: 3px;
		}

		.star--2 {
			top: 18px;
			left: 28px;
			z-index: 1;
			width: 30px;
			height: 3px;
		}

		.star--3 {
			top: 27px;
			left: 40px;
			z-index: 0;
			width: 30px;
			height: 3px;
		}

		.star--4,
		.star--5,
		.star--6 {
			opacity: 0;
			transition: all 300ms 0 cubic-bezier(0.445, 0.05, 0.55, 0.95) !important;
		}

		.star--4 {
			top: 16px;
			left: 11px;
			z-index: 0;
			width: 2px;
			height: 2px;
			transform: translate3d(3px,0,0);
		}

		.star--5 {
			top: 32px;
			left: 17px;
			z-index: 0;
			width: 3px;
			height: 3px;
			transform: translate3d(3px,0,0);
		}

		.star--6 {
			top: 36px;
			left: 28px;
			z-index: 0;
			width: 2px;
			height: 2px;
			transform: translate3d(3px,0,0);
		}

		input:checked {
			+ .toggle {
				background-color: #749DD6;

				> .before {
					color: var(--fg);
				}

				> .after {
					color: var(--accent);
				}

				.toggle__handler {
					background-color: #FFE5B5;
					transform: translate3d(40px, 0, 0) rotate(0);

					.crater { opacity: 1; }
				}

				.star--1 {
					width: 2px;
					height: 2px;
				}

				.star--2 {
					width: 4px;
					height: 4px;
					transform: translate3d(-5px, 0, 0);
				}

				.star--3 {
					width: 2px;
					height: 2px;
					transform: translate3d(-7px, 0, 0);
				}

				.star--4,
				.star--5,
				.star--6 {
					opacity: 1;
					transform: translate3d(0,0,0);
				}

				.star--4 {
					transition: all 300ms 200ms cubic-bezier(0.445, 0.05, 0.55, 0.95) !important;
				}

				.star--5 {
					transition: all 300ms 300ms cubic-bezier(0.445, 0.05, 0.55, 0.95) !important;
				}

				.star--6 {
					transition: all 300ms 400ms cubic-bezier(0.445, 0.05, 0.55, 0.95) !important;
				}
			}
		}
	}
}
</style>
