<template>
  <q-form @submit="save" @reset="reset">
    <q-card-section class="fit row justify-start content-center items-center">
      <q-input
        v-model="userModel.firstname"
        class="col-xs-12 col-sm-6 q-pa-sm"
        label="Vorname"
        :rules="[notEmpty]"
        autocomplete="given-name"
        filled
      />
      <q-input
        v-model="userModel.lastname"
        class="col-xs-12 col-sm-6 q-pa-sm"
        label="Nachname"
        :rules="[notEmpty]"
        autocomplete="family-name"
        filled
      />
      <q-input
        v-model="userModel.display_name"
        class="col-xs-12 col-sm-6 q-pa-sm"
        label="Angezeigter Name"
        :rules="[notEmpty]"
        autocomplete="nickname"
        filled
      />
      <q-input
        v-model="userModel.mail"
        class="col-xs-12 col-sm-6 q-pa-sm"
        label="E-Mail"
        :rules="[isEmail, notEmpty]"
        autocomplete="email"
        filled
      />
      <q-input
        v-model="userModel.userid"
        class="col-xs-12 col-sm-6 q-pa-sm"
        label="Benutzername"
        :readonly="!newUser"
        :rules="newUser ? [isFreeUID, notEmpty] : []"
        autocomplete="username"
        filled
      />
      <q-select
        v-model="userModel.roles"
        class="col-xs-12 col-sm-6 q-pa-sm"
        label="Rollen"
        filled
        multiple
        use-chips
        :readonly="!canSetRoles"
        :options="allRoles"
        option-label="name"
        option-value="name"
      />
      <IsoDateInput
        v-model="userModel.birthday"
        class="col-xs-12 col-sm-6 q-pa-sm"
        label="Geburtstag"
        autocomplete="bday"
      />
      <q-file
        v-model="avatar"
        class="col-xs-12 col-sm-6 q-pa-sm"
        filled
        label="Avatar"
        accept=".jpg, image/*"
        hint="Bilddateien nur JPEG"
        :clearable="avatar.name !== '' || deleteAvatar"
        @update:model-value="imagePreview"
        @clear="clear"
        @rejected="onAvatarRejected"
      >
        <template #file="{ file }">
          <div class="full-width row justify-center">
            <q-avatar size="265px">
              <q-img v-if="!avatarError || file.name !== ''" :src="image" @error="error" />
              <q-img v-else src="no-image.svg" />
            </q-avatar>
          </div>
        </template>
        <template #append v-if="!avatarError && !deleteAvatar">
          <q-btn round color="negative" icon="mdi-trash-can" size="xs" @click="toDeleteAvatar" />
        </template>
      </q-file>
    </q-card-section>
    <q-separator v-if="!newUser" />
    <q-card-section v-if="!newUser" class="fit row justify-start content-center items-center">
      <PasswordInput
        v-if="isCurrentUser"
        v-model="password"
        :rules="[notEmpty]"
        filled
        label="Passwort"
        autocomplete="current-password"
        class="col-xs-12 col-sm-6 q-pa-sm"
        hint="Passwort muss immer eingetragen werden"
      />
      <PasswordInput
        v-model="newPassword"
        filled
        label="Neues Password"
        autocomplete="new-password"
        class="col-xs-12 col-sm-6 q-pa-sm"
      />
    </q-card-section>
    <q-card-actions align="right">
      <q-btn label="Reset" type="reset" />
      <q-btn color="primary" type="submit" label="Speichern" />
    </q-card-actions>
  </q-form>
</template>

<script lang="ts">
import { Notify } from 'quasar';
import { IsoDateInput, PasswordInput } from '@flaschengeist/api/components';
import { defineComponent, computed, ref, onBeforeMount, PropType, watchEffect } from 'vue';
import {
  hasPermission,
  notEmpty,
  isEmail,
  useMainStore,
  useUserStore,
  api,
} from '@flaschengeist/api';

export default defineComponent({
  name: 'MainUserSettings',
  components: { IsoDateInput, PasswordInput },
  props: {
    user: {
      required: true,
      type: Object as PropType<FG.User>,
    },
    newUser: { type: Boolean, default: false },
  },
  emits: {
    'update:user': (payload: FG.User) => !!payload,
  },
  setup(props, { emit }) {
    const userStore = useUserStore();
    const mainStore = useMainStore();

    onBeforeMount(() => {
      void userStore.getRoles(false);
    });

    const password = ref('');
    const newPassword = ref('');
    const avatar = ref<File>(new File([], '', {}));
    const avatarError = ref(false);
    const userModel = ref(Object.assign({}, props.user));

    const canSetRoles = computed(() => hasPermission('users_set_roles'));
    const allRoles = computed(() => userStore.roles.map((role) => role.name));
    const isCurrentUser = computed(() => userModel.value.userid === mainStore.currentUser.userid);

    const _deleteAvatar = ref(false);
    const deleteAvatar = computed({
      get: () => _deleteAvatar.value,
      set: (val: boolean) => (_deleteAvatar.value = val),
    });

    /* Reset model if props changed */
    watchEffect(() => {
      if (props.user.userid && props.user.userid !== userModel.value.userid) reset();
    });

    function onAvatarRejected() {
      Notify.create({
        group: false,
        type: 'negative',
        message: 'Datei zu groß oder keine gültige Bilddatei.',
        timeout: 10000,
        progress: true,
        actions: [{ icon: 'mdi-close', color: 'white' }],
      });
      avatar.value = new File([], '', {});
    }

    async function save() {
      let changed: FG.User = userModel.value;
      if (typeof changed.birthday === 'string') changed.birthday = new Date(changed.birthday);
      changed = Object.assign(changed, {
        password: password.value,
      });
      if (newPassword.value != '') {
        changed = Object.assign(changed, {
          new_password: newPassword.value,
        });
      }

      emit('update:user', changed);

      if (avatar.value instanceof File && avatar.value.name)
        await userStore
          .uploadAvatar(changed, avatar.value instanceof File ? avatar.value : avatar.value[0])
          .catch((response: Response) => {
            if (response && response.status == 400) {
              onAvatarRejected();
            }
          });
      if (deleteAvatar.value) {
        await userStore.deleteAvatar(changed);
      }
      password.value = '';
    }

    function reset() {
      userModel.value = Object.assign({}, props.user);
      password.value = '';
      newPassword.value = '';
      imgsrc.value = undefined;
      deleteAvatar.value = false;
      avatarError.value = false;
    }

    function isFreeUID(val: string) {
      return (
        userStore.users.findIndex((user) => user.userid === val) === -1 ||
        'Benutzername ist schon vergeben'
      );
    }

    const imgsrc = ref();

    const image = computed(() => {
      if (imgsrc.value) {
        return <string>imgsrc.value;
      }
      if (props.user.avatar_url && !deleteAvatar.value) {
        return `${api.defaults.baseURL || ''}${props.user.avatar_url}`;
      }
      return 'no-image.svg';
    });

    function imagePreview() {
      if (avatar.value && avatar.value instanceof File) {
        let reader = new FileReader();

        reader.onload = (e) => {
          imgsrc.value = e.target?.result;
        };

        reader.readAsDataURL(avatar.value);
      }
    }
    function clear(val: File) {
      avatar.value = new File([], '', {});
      imgsrc.value = undefined;
      deleteAvatar.value = false;
    }

    function toDeleteAvatar() {
      avatar.value = new File([], '', {});
      imgsrc.value = undefined;
      deleteAvatar.value = true;
    }

    function error() {
      avatarError.value = true;
    }

    return {
      allRoles,
      avatar,
      canSetRoles,
      isCurrentUser,
      isEmail,
      isFreeUID,
      newPassword,
      notEmpty,
      onAvatarRejected,
      password,
      reset,
      save,
      userModel,
      image,
      imagePreview,
      clear,
      deleteAvatar,
      avatarError,
      toDeleteAvatar,
      error,
    };
  },
});
</script>