<template>
  <b-modal id="modal-role-group" ref="modal" @ok="onOk" @hidden="resetForm">
    <template v-slot:modal-title>
      <template v-if="roleGroup">
        {{ $t('pageLdap.modal.editRoleGroup') }}
      </template>
      <template v-else>
        {{ $t('pageLdap.modal.addNewRoleGroup') }}
      </template>
    </template>
    <b-container>
      <b-row>
        <b-col sm="8">
          <b-form id="role-group">
            <!-- Edit role group -->
            <template v-if="roleGroup !== null">
              <dl class="mb-4">
                <dt>{{ $t('pageLdap.modal.groupName') }}</dt>
                <dd>{{ form.groupName }}</dd>
              </dl>
            </template>

            <!-- Add new role group -->
            <template v-else>
              <b-form-group
                :label="$t('pageLdap.modal.groupName')"
                label-for="role-group-name"
              >
                <b-form-input
                  id="role-group-name"
                  v-model="form.groupName"
                  :state="getValidationState($v.form.groupName)"
                  @input="$v.form.groupName.$touch()"
                />
                <b-form-invalid-feedback role="alert">
                  {{ $t('global.form.fieldRequired') }}
                </b-form-invalid-feedback>
              </b-form-group>
            </template>

            <b-form-group
              :label="$t('pageLdap.modal.groupPrivilege')"
              label-for="privilege"
            >
              <b-form-select
                id="privilege"
                v-model="form.groupPrivilege"
                :options="accountRoles"
                :state="getValidationState($v.form.groupPrivilege)"
                @input="$v.form.groupPrivilege.$touch()"
              >
                <template v-if="!roleGroup" v-slot:first>
                  <b-form-select-option :value="null" disabled>
                    {{ $t('global.form.selectAnOption') }}
                  </b-form-select-option>
                </template>
              </b-form-select>
              <b-form-invalid-feedback role="alert">
                {{ $t('global.form.fieldRequired') }}
              </b-form-invalid-feedback>
            </b-form-group>
          </b-form>
        </b-col>
      </b-row>
    </b-container>
    <template v-slot:modal-footer="{ ok, cancel }">
      <b-button variant="secondary" @click="cancel()">
        {{ $t('global.action.cancel') }}
      </b-button>
      <b-button form="role-group" type="submit" variant="primary" @click="ok()">
        <template v-if="roleGroup">
          {{ $t('global.action.save') }}
        </template>
        <template v-else>
          {{ $t('global.action.add') }}
        </template>
      </b-button>
    </template>
  </b-modal>
</template>

<script>
import { required, requiredIf } from 'vuelidate/lib/validators';
import VuelidateMixin from '@/components/Mixins/VuelidateMixin.js';

export default {
  mixins: [VuelidateMixin],
  props: {
    roleGroup: {
      type: Object,
      default: null,
      validator: prop => {
        if (prop === null) return true;
        return (
          prop.hasOwnProperty('groupName') &&
          prop.hasOwnProperty('groupPrivilege')
        );
      }
    }
  },
  data() {
    return {
      form: {
        groupName: null,
        groupPrivilege: null
      }
    };
  },
  computed: {
    accountRoles() {
      return this.$store.getters['localUsers/accountRoles'];
    }
  },
  watch: {
    roleGroup: function(value) {
      if (value === null) return;
      this.form.groupName = value.groupName;
      this.form.groupPrivilege = value.groupPrivilege;
    }
  },
  validations() {
    return {
      form: {
        groupName: {
          required: requiredIf(function() {
            return !this.roleGroup;
          })
        },
        groupPrivilege: {
          required
        }
      }
    };
  },
  methods: {
    handleSubmit() {
      this.$v.$touch();
      if (this.$v.$invalid) return;
      this.$emit('ok', {
        addNew: !this.roleGroup,
        groupName: this.form.groupName,
        groupPrivilege: this.form.groupPrivilege
      });
      this.closeModal();
    },
    closeModal() {
      this.$nextTick(() => {
        this.$refs.modal.hide();
      });
    },
    resetForm() {
      this.form.groupName = null;
      this.form.groupPrivilege = null;
      this.$v.$reset();
      this.$emit('hidden');
    },
    onOk(bvModalEvt) {
      // prevent modal close
      bvModalEvt.preventDefault();
      this.handleSubmit();
    }
  }
};
</script>