<!--

    Copyright © 2016-2023 The Thingsboard Authors

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

-->
<div>
  <mat-card appearance="outlined" class="settings-card">
    <mat-card-header>
      <mat-card-title>
        <span class="mat-headline-5" translate>admin.outgoing-mail-settings</span>
      </mat-card-title>
      <span fxFlex></span>
      <div tb-help="outgoingMailSettings"></div>
    </mat-card-header>
    <mat-progress-bar color="warn" mode="indeterminate" *ngIf="isLoading$ | async">
    </mat-progress-bar>
    <div style="height: 4px;" *ngIf="!(isLoading$ | async)"></div>
    <mat-card-content style="padding-top: 16px;">
      <form [formGroup]="mailSettings" (ngSubmit)="save()">
        <fieldset [disabled]="isLoading$ | async">
          <mat-form-field class="mat-block">
            <mat-label translate>admin.mail-from</mat-label>
            <input matInput formControlName="mailFrom" required/>
            <mat-error *ngIf="mailSettings.get('mailFrom').hasError('required')">
              {{ 'admin.mail-from-required' | translate }}
            </mat-error>
          </mat-form-field>

          <mat-form-field class="mat-block">
            <mat-label translate>admin.oauth2.smtp-provider</mat-label>
            <mat-select formControlName="providerId">
              <mat-option *ngFor="let provider of templateProvider" [value]="provider">
                {{ templates.get(provider)?.name || 'Custom' }}
              </mat-option>
            </mat-select>
          </mat-form-field>

          <mat-expansion-panel class="configuration-panel mat-elevation-z0" [expanded]="mailSettings.get('providerId').value === mailServerOauth2Provider.CUSTOM">
            <mat-expansion-panel-header>
              <mat-panel-title fxLayoutAlign="start center" translate>
                admin.connection-settings
              </mat-panel-title>
            </mat-expansion-panel-header>
            <ng-template matExpansionPanelContent>
              <mat-form-field class="mat-block">
                <mat-label translate>admin.smtp-protocol</mat-label>
                <mat-select formControlName="smtpProtocol">
                  <mat-option *ngFor="let protocol of smtpProtocols" [value]="protocol">
                    {{protocol.toUpperCase()}}
                  </mat-option>
                </mat-select>
              </mat-form-field>
              <div fxLayout.gt-sm="row" fxLayoutGap.gt-sm="10px">
                <mat-form-field class="mat-block" fxFlex="100" fxFlex.gt-sm="60">
                  <mat-label translate>admin.smtp-host</mat-label>
                  <input matInput formControlName="smtpHost" placeholder="localhost" required/>
                  <mat-error *ngIf="mailSettings.get('smtpHost').hasError('required')">
                    {{ 'admin.smtp-host-required' | translate }}
                  </mat-error>
                </mat-form-field>
                <mat-form-field class="mat-block" fxFlex="100" fxFlex.gt-sm="40">
                  <mat-label translate>admin.smtp-port</mat-label>
                  <input matInput #smtpPortInput formControlName="smtpPort" placeholder="25" maxlength="5" required/>
                  <mat-hint align="end">{{smtpPortInput.value?.length || 0}}/5</mat-hint>
                  <mat-error *ngIf="mailSettings.get('smtpPort').hasError('required')">
                    {{ 'admin.smtp-port-required' | translate }}
                  </mat-error>
                  <mat-error *ngIf="mailSettings.get('smtpPort').hasError('pattern') || mailSettings.get('smtpPort').hasError('maxlength')">
                    {{ 'admin.smtp-port-invalid' | translate }}
                  </mat-error>
                </mat-form-field>
              </div>
              <mat-form-field class="mat-block">
                <mat-label translate>admin.timeout-msec</mat-label>
                <input matInput #timeoutInput formControlName="timeout" placeholder="10000" maxlength="6" required/>
                <mat-hint align="end">{{timeoutInput.value?.length || 0}}/6</mat-hint>
                <mat-error *ngIf="mailSettings.get('timeout').hasError('required')">
                  {{ 'admin.timeout-required' | translate }}
                </mat-error>
                <mat-error *ngIf="mailSettings.get('timeout').hasError('pattern') || mailSettings.get('timeout').hasError('maxlength')">
                  {{ 'admin.timeout-invalid' | translate }}
                </mat-error>
              </mat-form-field>
              <mat-slide-toggle fxFlex formControlName="enableTls" style="display: block; padding-bottom: 22px;">
                {{ 'admin.enable-tls' | translate }}
              </mat-slide-toggle>
              <mat-form-field fxFlex class="mat-block" *ngIf="mailSettings.get('enableTls').value">
                <mat-label translate>admin.tls-version</mat-label>
                <mat-select formControlName="tlsVersion">
                  <mat-option *ngFor="let tlsVersion of tlsVersions" [value]="tlsVersion">
                    {{ tlsVersion }}
                  </mat-option>
                </mat-select>
              </mat-form-field>
              <mat-slide-toggle formControlName="enableProxy" style="display: block; padding-bottom: 22px;">
                {{ 'admin.enable-proxy' | translate }}
              </mat-slide-toggle>
              <div *ngIf="mailSettings.get('enableProxy').value">
                <div fxLayout.gt-sm="row" fxLayoutGap.gt-sm="8px">
                  <mat-form-field class="mat-block" fxFlex="100" fxFlex.gt-sm="60">
                    <mat-label translate>admin.proxy-host</mat-label>
                    <input matInput required formControlName="proxyHost">
                    <mat-error *ngIf="mailSettings.get('proxyHost').hasError('required')">
                      {{ 'admin.proxy-host-required' | translate }}
                    </mat-error>
                  </mat-form-field>
                  <mat-form-field class="mat-block" fxFlex="100" fxFlex.gt-sm="40">
                    <mat-label translate>admin.proxy-port</mat-label>
                    <input matInput required formControlName="proxyPort" type="number" step="1" min="1" max="65535">
                    <mat-error *ngIf="mailSettings.get('proxyPort').hasError('required')">
                      {{ 'admin.proxy-port-required' | translate }}
                    </mat-error>
                    <mat-error *ngIf="mailSettings.get('proxyPort').hasError('pattern')
                  || mailSettings.get('proxyPort').hasError('min')
                  || mailSettings.get('proxyPort').hasError('max')">
                      {{ 'admin.proxy-port-range' | translate }}
                    </mat-error>
                  </mat-form-field>
                </div>
                <div fxLayout="row" fxLayout.xs="column" fxLayoutGap.gt-xs="8px">
                  <mat-form-field fxFlex class="mat-block">
                    <mat-label translate>admin.proxy-user</mat-label>
                    <input matInput formControlName="proxyUser">
                  </mat-form-field>
                  <mat-form-field fxFlex class="mat-block">
                    <mat-label translate>admin.proxy-password</mat-label>
                    <input matInput type="password" formControlName="proxyPassword" autocomplete="new-proxy-password">
                    <tb-toggle-password matSuffix></tb-toggle-password>
                  </mat-form-field>
                </div>
              </div>
            </ng-template>
          </mat-expansion-panel>

          <fieldset class="fields-group" fxLayout="column">
            <legend class="group-title" translate>admin.oauth2.authentication</legend>
            <mat-form-field class="mat-block">
              <mat-label translate>common.username</mat-label>
              <input matInput formControlName="username" placeholder="{{ 'common.enter-username' | translate }}"
                     autocomplete="new-username"/>
            </mat-form-field>
            <div fxLayoutAlign="space-between center" style="height: 50px; padding-bottom: 20px" [fxHide]="mailSettings.get('providerId').value === 'SENDGRID'">
              <mat-button-toggle-group class="tb-notification-unread-toggle-group"
                                       style="width: 250px;"
                                       formControlName="enableOauth2">
                <mat-button-toggle fxFlex [value]=false>{{ 'admin.oauth2.basic' | translate }}</mat-button-toggle>
                <mat-button-toggle fxFlex [value]=true>{{ 'admin.oauth2.oauth2' | translate }}</mat-button-toggle>
              </mat-button-toggle-group>
              <div class="details-buttons" *ngIf="helpLink && mailSettings.get('enableOauth2').value">
                <div [tb-help]="helpLink"></div>
              </div>
            </div>
            <section *ngIf="!mailSettings.get('enableOauth2').value">
              <mat-checkbox *ngIf="showChangePassword" formControlName="changePassword" style="padding-bottom: 16px;">
                {{ 'admin.change-password' | translate }}
              </mat-checkbox>
              <mat-form-field class="mat-block" *ngIf="mailSettings.get('changePassword').value || !showChangePassword">
                <mat-label translate>common.password</mat-label>
                <input matInput formControlName="password" type="password"
                       placeholder="{{ 'common.enter-password' | translate }}" autocomplete="new-password"/>
                <tb-toggle-password matSuffix></tb-toggle-password>
              </mat-form-field>
            </section>
            <section *ngIf="mailSettings.get('enableOauth2').value">
              <div fxLayout="row" fxLayout.xs="column" fxLayoutGap.gt-xs="8px">
                <mat-form-field fxFlex class="mat-block">
                  <mat-label translate>admin.oauth2.client-id</mat-label>
                  <input matInput formControlName="clientId" required>
                  <mat-error *ngIf="mailSettings.get('clientId').hasError('required')">
                    {{ 'admin.oauth2.client-id-required' | translate }}
                  </mat-error>
                  <mat-error *ngIf="mailSettings.get('clientId').hasError('maxlen gth')">
                    {{ 'admin.oauth2.client-id-max-length' | translate }}
                  </mat-error>
                </mat-form-field>

                <mat-form-field fxFlex class="mat-block">
                  <mat-label translate>admin.oauth2.client-secret</mat-label>
                  <input matInput formControlName="clientSecret" required>
                  <mat-error *ngIf="mailSettings.get('clientSecret').hasError('required')">
                    {{ 'admin.oauth2.client-secret-required' | translate }}
                  </mat-error>
                  <mat-error *ngIf="mailSettings.get('clientSecret').hasError('maxlength')">
                    {{ 'admin.oauth2.client-secret-max-length' | translate }}
                  </mat-error>
                </mat-form-field>
              </div>

              <mat-form-field fxFlex class="mat-block" *ngIf="mailSettings.get('providerId').value === mailServerOauth2Provider.OFFICE_365">
                <mat-label translate>admin.oauth2.microsoft-tenant-id</mat-label>
                <input matInput formControlName="providerTenantId" required>
                <mat-error *ngIf="mailSettings.get('providerTenantId').hasError('required')">
                  {{ 'admin.oauth2.microsoft-tenant-id-required' | translate }}
                </mat-error>
              </mat-form-field>
              <mat-expansion-panel class="mat-elevation-z0" [expanded]="mailSettings.get('providerId').value === mailServerOauth2Provider.CUSTOM">
                <mat-expansion-panel-header>
                  <mat-panel-description fxLayoutAlign="end" translate>
                    tenant-profile.advanced-settings
                  </mat-panel-description>
                </mat-expansion-panel-header>
                <ng-template matExpansionPanelContent>
                  <div fxLayout="row" fxLayout.xs="column" fxLayoutGap.gt-xs="8px">
                    <mat-form-field fxFlex class="mat-block">
                      <mat-label translate>admin.oauth2.authorization-uri</mat-label>
                      <input matInput formControlName="authUri" required>
                      <button mat-icon-button matSuffix
                              type="button"
                              (click)="toggleEditMode('authUri')">
                        <mat-icon class="material-icons">create</mat-icon>
                      </button>
                      <mat-error *ngIf="mailSettings.get('authUri').hasError('required')">
                        {{ 'admin.oauth2.access-token-uri-required' | translate }}
                      </mat-error>
                      <mat-error *ngIf="mailSettings.get('authUri').hasError('pattern')">
                        {{ 'admin.oauth2.uri-pattern-error' | translate }}
                      </mat-error>
                    </mat-form-field>

                    <mat-form-field fxFlex class="mat-block">
                      <mat-label translate>admin.oauth2.token-uri</mat-label>
                      <input matInput formControlName="tokenUri" required>
                      <button mat-icon-button matSuffix
                              type="button"
                              (click)="toggleEditMode('tokenUri')">
                        <mat-icon class="material-icons">create</mat-icon>
                      </button>
                      <mat-error *ngIf="mailSettings.get('tokenUri').hasError('required')">
                        {{ 'admin.oauth2.access-token-uri-required' | translate }}
                      </mat-error>
                      <mat-error *ngIf="mailSettings.get('tokenUri').hasError('pattern')">
                        {{ 'admin.oauth2.uri-pattern-error' | translate }}
                      </mat-error>
                    </mat-form-field>
                  </div>
                  <mat-form-field fxFlex class="mat-block">
                    <mat-label translate>admin.oauth2.scope</mat-label>
                    <mat-chip-grid #scopeList>
                      <mat-chip-row *ngFor="let scope of mailSettings.get('scope').value; let k = index; trackBy: trackByParams"
                                    removable (removed)="removeScope(k)">
                        {{scope}}
                        <mat-icon matChipRemove>cancel</mat-icon>
                      </mat-chip-row>
                      <input [matChipInputFor]="scopeList"
                             [matChipInputSeparatorKeyCodes]="separatorKeysCodes"
                             matChipInputAddOnBlur
                             (matChipInputTokenEnd)="addScope($event)">
                    </mat-chip-grid>
                    <mat-error *ngIf="mailSettings.get('scope').hasError('required')">
                      {{ 'admin.oauth2.scope-required' | translate }}
                    </mat-error>
                  </mat-form-field>
                </ng-template>
              </mat-expansion-panel>

              <fieldset class="fields-group" fxLayout="column">
                <legend class="group-title" translate>admin.oauth2.redirect-uri</legend>
                <div fxFlex fxLayout="row" fxLayout.xs="column" fxLayoutGap="8px">
                  <div fxLayout="column" fxFlex.sm="60" fxFlex.gt-sm="50" [formGroup]="domainForm">
                    <div fxLayout="row" fxLayout.xs="column" fxLayout.md="column" fxLayoutGap="8px" fxLayoutGap.md="0px">
                      <mat-form-field fxFlex="30" fxFlex.md fxFlex.xs class="mat-block">
                        <mat-label translate>admin.oauth2.protocol</mat-label>
                        <mat-select formControlName="scheme">
                          <mat-option *ngFor="let protocol of protocols" [value]="protocol">
                            {{ domainSchemaTranslations.get(protocol) | translate | uppercase }}
                          </mat-option>
                        </mat-select>
                      </mat-form-field>
                      <mat-form-field fxFlex class="mat-block">
                        <mat-label translate>admin.domain-name</mat-label>
                        <input matInput formControlName="name" required>
                        <mat-error *ngIf="domainForm.get('name').hasError('pattern')">
                          {{ 'admin.error-verification-url' | translate }}
                        </mat-error>
                        <mat-error *ngIf="domainForm.get('name').hasError('maxlength')">
                          {{ 'admin.domain-name-max-length' | translate }}
                        </mat-error>
                      </mat-form-field>
                    </div>
                    <mat-error *ngIf="domainForm.hasError('unique')">
                      {{ 'admin.domain-name-unique' | translate }}
                    </mat-error>
                  </div>

                  <div fxFlex fxLayout="column">
                    <mat-form-field fxFlex class="mat-block">
                      <mat-label translate>admin.oauth2.redirect-uri-template</mat-label>
                      <input matInput formControlName="redirectUri" readonly>
                      <tb-copy-button
                        matSuffix
                        color="primary"
                        [copyText]="mailSettings.get('redirectUri').value"
                        tooltipText="{{ 'admin.oauth2.copy-redirect-uri' | translate }}"
                        tooltipPosition="above"
                        icon="mdi:clipboard-arrow-left">
                      </tb-copy-button>
                    </mat-form-field>
                  </div>
                </div>
              </fieldset>
            </section>
            <section fxLayout="row"
                     fxLayout.xs="column"
                     fxLayoutAlign.gt-xs="space-between center"
                     style="padding-bottom: 12px"
                     *ngIf="mailSettings.get('enableOauth2').value">
              <div>
                <span class="token-status" translate>admin.oauth2.access-token-status</span>
                <span>
                  {{ accessTokenStatus }}
                </span>
              </div>
              <button mat-raised-button type="button" color="primary"
                      [disabled]="(isLoading$ | async) || mailSettings.invalid || domainForm.invalid || (mailSettings.dirty || domainForm.dirty)"
                      (click)="generateAccessToken()">
                {{ accessTokenButtonName }}
              </button>
            </section>
          </fieldset>
          <div fxLayout="row" fxLayoutAlign="end center" fxLayout.xs="column" fxLayoutAlign.xs="end" fxLayoutGap="16px">
            <button mat-raised-button type="button"
                    [disabled]="(isLoading$ | async) || mailSettings.get('enableOauth2').value ? mailSettings.invalid || domainForm.invalid || (mailSettings.dirty || domainForm.dirty) : mailSettings.invalid"
                    (click)="sendTestMail()">
              {{'admin.send-test-mail' | translate}}
            </button>
            <button mat-raised-button color="primary"
                    [disabled]="(isLoading$ | async) || mailSettings.invalid || domainForm.invalid || (!mailSettings.dirty && !domainForm.dirty)"
                    type="submit">{{'action.save' | translate}}
            </button>
          </div>
        </fieldset>
      </form>
    </mat-card-content>
  </mat-card>
</div>
