<script setup lang="ts">
import type { ISelectProps } from '@interfaces/componentsProps';
import { computed, ref } from 'vue';
import { convertThemeToColor } from '@helpers/common';
import { iconsSet } from '@/common/constants/icons';
import type { TThemeColor } from '@interfaces/common';
import SelectItem from '@stories/components/Select/SelectItem.vue';
import SearchIcon from '@stories/icons/Mono/SearchIcon.vue';
import { calcFontSize, calcPadding, getOptionsGroups } from '@stories/components/Select/helpers';

const props = withDefaults(defineProps<ISelectProps>(), {
  size: 'normal',
  width: '200px',
  theme: 'black',
  darknessTheme: '700',
  darknessBackground: '200',
  darknessOpenIcon: '700',
  name: 'select',
  placeholder: 'Nothing selected',
  openIcon: 'ArrowShortDown',
});
const selected = defineModel('value');
const isOpen = ref<boolean>(false);
const filter = ref<string>('');

const optionsGroups = computed(() => getOptionsGroups(props.options, props.groups, filter.value));
const optionsNoGroup = computed(() =>
  props.options.filter(
    (option) =>
      !option.group &&
      (filter.value ? (option.label ?? option.value).toLowerCase().startsWith(filter.value.toLowerCase()) : true),
  ),
);
const selectedOption = computed(() => props.options.find((option) => option.value === selected.value));
const fontSize = computed(() => calcFontSize(props.size));
const fontSizeNumber = computed(() => fontSize.value.slice(0, -2));
const padding = computed(() => calcPadding(props.size));
const textColor = computed(() => (props.disabled ? '#62708c' : convertThemeToColor(props.theme, props.darknessTheme)));
const backgroundColor = computed(() =>
  convertThemeToColor(
    props.background ?? (props.theme === 'white' ? 'black' : props.theme === 'black' ? 'white' : props.theme),
    (!props.background && props.theme === 'black') || props.background === 'white' ? '500' : props.darknessBackground,
  ),
);

const pickOption = (value: string) => {
  selected.value = value;
  isOpen.value = false;
};
const calcOptionColor = (color: TThemeColor | undefined, darknessColor: string | undefined, defaultColor: string) =>
  color ? convertThemeToColor(color, darknessColor ?? '500') : defaultColor;
</script>

<template>
  <section>
    <select :name="name" id="select">
      <option value=""></option>
      <option v-for="option of options" :key="option.value" :selected="selected === option.value">
        {{ option.label ?? option.value }}
      </option>
    </select>
    <div class="list" :style="`background-color: ${backgroundColor}`">
      <button
        @click.prevent="!disabled ? (isOpen = !isOpen) : ''"
        :class="[
          'button',
          {
            disabled: disabled,
          },
        ]"
        :style="`width: ${width}`"
      >
        <SelectItem
          class="selected"
          :style="`color: ${selected ? calcOptionColor(selectedOption?.color, selectedOption?.darknessColor, textColor) : placeholderColor ? convertThemeToColor(placeholderColor, '700') : '#62708c'}; font-weight: 600`"
          :option="selectedOption"
          :fontSizeNumber="fontSizeNumber"
          :textColor="textColor"
        >
          <slot :name="`icon-left-${selectedOption?.value}`"></slot>
          <span :style="`font-size: ${fontSize}`">{{ selected ?? placeholder }}</span>
          <slot :name="`icon-right-${selectedOption?.value}`"></slot>
        </SelectItem>
        <component
          :is="iconsSet[openIcon]"
          :size="fontSizeNumber"
          :color="openIconColor ? convertThemeToColor(openIconColor, darknessOpenIcon) : '#62708c'"
          :style="`width: ${fontSize}`"
        />
      </button>
      <div
        :class="[
          'options',
          {
            optionsOpened: isOpen,
          },
        ]"
      >
        <div style="overflow: hidden">
          <div class="flex filter" v-if="filtered">
            <input v-model="filter" type="text" /><SearchIcon :size="fontSizeNumber" color="#62708c" />
          </div>
          <div v-for="group of optionsGroups" :key="group.name" class="group">
            <h3
              class="flexNoHover groupHeader"
              :style="`color: ${calcOptionColor(group.nameColor, darknessTheme, textColor)};
            background-color: ${calcOptionColor(group.background, group.background === 'white' ? '500' : '200', backgroundColor)}; font-size: calc(${fontSize} * 0.8); padding: calc(${padding} * 0.8)`"
            >
              <component
                v-if="group?.iconLeft"
                :is="iconsSet[group?.iconLeft]"
                :size="fontSizeNumber"
                :color="calcOptionColor(group?.iconLeftColor, darknessTheme, textColor)"
              />{{ group.name }}
              <component
                v-if="group?.iconRight"
                :is="iconsSet[group?.iconRight]"
                :size="fontSizeNumber"
                :color="calcOptionColor(group?.iconRightColor, darknessTheme, textColor)"
              />
            </h3>
            <SelectItem
              @click.prevent="pickOption(option.value)"
              v-for="option of group.items"
              :key="option.value"
              :class="[
                'flex',
                {
                  firstOption: options[0].value === option.value,
                  lastOption: options[options.length - 1].value === option.value,
                },
              ]"
              :style="`color: ${calcOptionColor(option.color, option.darknessColor, textColor)};
            background-color: ${calcOptionColor(option.background, option.darknessBackground, backgroundColor)}`"
              :option="option"
              :fontSizeNumber="fontSizeNumber"
              :textColor="textColor"
            >
              <slot :name="`icon-left-${option.value}`"></slot>
              <span :style="`font-size: ${fontSize}`">{{ option.label ?? option.value }}</span>
              <slot :name="`icon-right-${option.value}`"></slot>
            </SelectItem>
          </div>
          <SelectItem
            @click.prevent="pickOption(option.value)"
            v-for="option of optionsNoGroup"
            :key="option.value"
            :class="[
              'flex',
              {
                firstOption: options[0].value === option.value,
                lastOption: options[options.length - 1].value === option.value,
              },
            ]"
            :style="`color: ${calcOptionColor(option.color, option.darknessColor, textColor)};
            background-color: ${calcOptionColor(option.background, option.darknessBackground, backgroundColor)}`"
            :option="option"
            :fontSizeNumber="fontSizeNumber"
            :textColor="textColor"
          >
            <slot :name="`icon-left-${option.value}`"></slot>
            <span :style="`font-size: ${fontSize}`">{{ option.label ?? option.value }}</span>
            <slot :name="`icon-right-${option.value}`"></slot>
          </SelectItem>
        </div>
      </div>
    </div>
  </section>
</template>

<style scoped>
#select {
  display: none;
}
.list {
  position: relative;
  width: max-content;
  border: 1px solid v-bind(textColor);
  border-radius: 5px;
  cursor: pointer;
}
.button {
  display: flex;
  padding: v-bind(padding);
  justify-content: space-between;
  gap: 10px;
}
.selected {
  display: flex;
  gap: 5px;
}
.options {
  position: absolute;
  z-index: 5000;
  top: 101%;
  width: 100%;
  border: 1px solid v-bind(textColor);
  border-radius: 5px;
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition:
    all 0.2s ease-in-out,
    opacity 0.1s ease-in-out;
}
.optionsOpened {
  grid-template-rows: 1fr;
  opacity: 1;
}
.group {
  border-top: 1px solid;
}
.groupHeader {
  cursor: auto;
}
.flexNoHover {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: v-bind(padding);
}
.flex {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: v-bind(padding);
}
.flex:hover {
  filter: brightness(90%);
  transition: all 0.1s ease-in-out;
}
.group {
  border-top: 1px solid v-bind(textColor);
  border-bottom: 1px solid v-bind(textColor);
}
.filter {
  cursor: auto;
  gap: 7px;
}
.firstOption {
  border-top-right-radius: 4px;
  border-top-left-radius: 4px;
}
.lastOption {
  border-bottom-right-radius: 4px;
  border-bottom-left-radius: 4px;
}
.disabled {
  cursor: auto;
  background-color: #e1e7f1 !important;
  border-radius: 4px;
}
</style>