<template>
  <div :class="'col' + colLength">
    <div class="list-card w-100 rounded-3 d-flex align-items-center h-100"
    :class="isWide ? 'horizontal' : ''"
    @mouseup="handleChange(value)"
    @keyup.space="handleChange(value)">
      <input
        :type="isMultiSelect ? 'checkbox' : 'radio'"
        :id="buttonID"
        :name="groupName"
        :value="buttonID"
        :aria-required="isRequired"
        :data-focus-target="groupName"
        v-model="checkValue"
        @change="handleCheckChange"
       />
      <label
        :for="buttonID"
        class="d-flex w-100 align-items-center px-2 h-100"
        :class="getLabelClasses" tabindex="-1"
      >
        <img
          :id="buttonImageId"
          :class="!isWide ? 'order-1' : 'ms-auto order-3'"
          :src="buttonImage"
          :alt="altText"
         />
        <p
          v-if="!isWide"
          class="small order-3"
          :class="isMultiSelect ? 'm-0' : 'mt-2 mb-0'"
        >
          {{buttonLabel}}
        </p>
        <p v-if="buttonLabelSubCopy && !isWide" class="fs-7 m-0 order-4">
          {{buttonLabelSubCopy}}
        </p>
        <div v-if="isWide" class="order-2">
          <p class="m-0 small">{{ buttonLabel }}</p>
          <p v-if="buttonLabelSubCopy" class="m-0 fs-7">
            {{ buttonLabelSubCopy }}
          </p>
        </div>
      </label>
    </div>
  </div>
</template>

<script>
import { toRefs } from "vue";
import { useField } from "vee-validate";

export default {
  name: "listCard",
  props: {
    //Must choose one of the following four options
    isMultiSelect: Boolean, //Defines use as checkbox
    isWide: Boolean,
    //end must choose
    buttonImage: String, //Required: File name of image
    buttonImageId: String,
    buttonLabel: String, //Required: Label text
    isRequired: Boolean, //Required: is aria-required required or not?
    altText: String, //Leave empty. Screen readers read the buttonLabel text. If alt has content, it will repeat unnecessarily.
    buttonID: String, //Required: Unique
    groupName: String, //Rquired: Unique
    buttonLabelSubCopy: String, //Optional: sub text
    value: {
      // Field initial value
      type: String,
      default: "",
    },
    colLength: String,
    selectedButtonIDs: [Array, String],
  },
  data(){
    return {
      checkValue: Boolean,
    }
  },
  created(){
    if(this.selectedButtonIDs){
      this.checkValue = this.isMultiSelect ? this.selectedButtonIDs.includes(this.buttonID) : this.selectedButtonIDs[0];
    }
  },
  computed: {
    getLabelClasses() {
      if (this.isWide) {
        let classes = "flex-row py-r ps-3 pe-8";
        if (this.buttonLabelSubCopy) {
          classes += " checkboxTop";
        }
        return classes;
      } else {
        return "flex-column pt-4 pb-2";
      }
    },
  },
  methods: {
    handleCheckChange(newValue, oldValue){
      const isInitialization = typeof(oldValue) === 'function';
      if (!isInitialization) {
        this.$emit('isCheckedChanged', { isChecked: this.checkValue, buttonId: this.buttonID.toString() });
      }
    }
  },
  setup(props) {
    const { groupName, value } = toRefs(props);
    const inputType = props.isMultiSelect ? "checkbox" : "radio";
    const { checked, handleChange } = useField(groupName, undefined, {
      type: inputType,
      checkedValue: value,
    });
    return {
      checked,
      handleChange,
    };
  },
};
</script>

<style lang="scss">
.list-card {
  border: 1px solid $gray-500;
  &.invalid {
    //Red border if invalid
    border: 1px solid $red;
  }
  img {
    // svg's should be constructed on the same canvas size/viewbox to ensure they occupy the same space in the DOM. This will allow easy/proper alignment of elements. See exisitng svg's for examples.
    height: auto;
    width: 6.5rem;
    margin-bottom: 3rem;
  }
  &:hover {
    box-shadow: 0px 0px 0px 6px $blue-100;
    border: 1px solid transparent;
  }
  input[type="checkbox"],
  input[type="radio"] {
    opacity: 0;
    width: 0;
    height: 0;
    + label {
      display: block;
      position: relative;
      &:hover {
        cursor: pointer;
      }
      p {
        text-align: center;
      }
    }
    &:focus + label {
      box-shadow: 0 0 0 2.5px $blue;
      border-radius: 0.5rem;
    }
    &:checked + label {
      background: $blue-100;
      box-shadow: 0 0 0 1px $blue;
      border-radius: 0.5rem;
    }
    + label::before {
      content: "";
      position: absolute;
      display: flex;
      margin: 0 auto;
      width: 1rem;
      height: 1rem;
      margin: 3rem 0 0 0;
      background: white;
      border: 1px solid $gray-500;
      border-radius: 2px;
      order: 2;
      flex-shrink: 0;
      color: $gray-600;
    }
    + label.checkboxTop::before {
      margin: -1.25rem 0.5rem 0 0 !important;
    }
    + label.checkboxTop::after {
      margin: -1.5rem 0.5rem 0 0 !important;
    }
    &:checked + label::before {
      background: $blue;
    }
    &:checked + label::after {
      content: "";
      position: absolute;
      margin: 3.2rem 0 0 0;
      border-left: 2px solid $white;
      border-bottom: 2px solid $white;
      height: 6px;
      width: 11px;
      transform: rotate(-45deg);
    }
  }
  input[type="radio"] {
    + label::before {
      content: "";
      display: none;
    }
    + label::after {
      content: "";
      display: none;
    }
    + label {
      img {
        margin-bottom: 0;
      }
    }
  }
  &.horizontal {
    img {
      margin-bottom: 0;
      width: 5.5rem;
    }
    input[type="checkbox"],
    input[type="radio"] {
      + label::before {
        content: "";
        position: relative;
        margin: 0 0.5rem 0 0;
        order: 1;
      }
      &:checked + label::after {
        content: "";
        margin: -0.25rem 0 0 0;
        left: 0.875rem;
      }
      + label {
        min-height: 48px;
        color: $gray-600;
        img {
          margin-bottom: 0;
        }
        p {
          text-align: left;
        }
      }
    }
  }
}
</style>
