<!-- Buttons to add to the header. -->
<core-navbar-buttons slot="end">
    <ion-button fill="clear" (click)="openModuleSummary()" aria-haspopup="true" [attr.aria-label]="'core.info' | translate">
        <ion-icon name="fas-circle-info" slot="icon-only" aria-hidden="true" />
    </ion-button>
</core-navbar-buttons>

<!-- Content. -->
<core-loading [hideUntil]="!showLoading">

    <!-- Activity info. -->
    <core-course-module-info [module]="module" [description]="description" [component]="component" [componentId]="componentId"
        [courseId]="courseId" [hasDataToSync]="hasOffline" (completionChanged)="onCompletionChange()" />

    <core-tabs [hideUntil]="!showLoading" [selectedIndex]="selectedTab">
        <!-- Index/Preview tab. -->
        <core-tab [title]="'addon.mod_lesson.preview' | translate" (ionSelect)="indexSelected()">
            <ng-template>
                <!-- Prevent access messages. Only show the first one. -->
                <ion-card class="core-info-card" *ngIf="lesson && preventReasons.length">
                    <ion-item>
                        <ion-icon name="fas-circle-info" slot="start" aria-hidden="true" />
                        <ion-label [innerHTML]="preventReasons[0].message" />
                    </ion-item>
                </ion-card>

                <!-- Input password for protected lessons. -->
                <ion-card *ngIf="askPassword">
                    <form (ngSubmit)="submitPassword($event, passwordinput)" #passwordForm>
                        <ion-item class="ion-text-wrap">
                            <ion-input labelPlacement="stacked" name="password" type="password"
                                placeholder="{{ 'core.login.password' | translate }}" core-auto-focus #passwordinput [clearOnEdit]="false"
                                [label]="'addon.mod_lesson.enterpassword' | translate">
                                <core-show-password slot="end" />
                            </ion-input>
                        </ion-item>
                        <ion-button expand="block" type="submit">
                            {{ 'addon.mod_lesson.continue' | translate }}
                        </ion-button>
                        <!-- Remove this once Ionic fixes this bug: https://github.com/ionic-team/ionic-framework/issues/19368 -->
                        <input type="submit" class="core-submit-hidden-enter" />
                    </form>
                </ion-card>

                <core-loading [hideUntil]="!showSpinner" *ngIf="canViewReports">
                    <ion-list *ngIf="(lesson && !preventReasons.length) || retakeToReview">
                        <ng-container *ngTemplateOutlet="buttons" />
                    </ion-list>
                </core-loading>
            </ng-template>
        </core-tab>

        <!-- Reports tab. -->
        <core-tab *ngIf="canViewReports" [title]="'addon.mod_lesson.reports' | translate" (ionSelect)="reportsSelected()">
            <ng-template>
                <core-loading [hideUntil]="reportLoaded">
                    <core-group-selector [groupInfo]="groupInfo" [(selected)]="group" (selectedChange)="setGroup(group)"
                        [courseId]="courseId" />

                    <!-- No lesson retakes. -->
                    <core-empty-box *ngIf="lesson && !overview && selectedGroupEmptyMessage" icon="fas-chart-bar">
                        <core-format-text [text]="selectedGroupEmptyMessage" contextLevel="course" [contextInstanceId]="courseId"
                            [wsNotFiltered]="true" />
                    </core-empty-box>
                    <core-empty-box *ngIf="!overview && !selectedGroupEmptyMessage" icon="fas-chart-bar"
                        [message]="'addon.mod_lesson.nolessonattempts' | translate" />

                    <!-- General statistics for the current group. -->
                    <ion-card class="addon-mod_lesson-lessonstats" *ngIf="overview">
                        <ion-card-header class="ion-text-wrap">
                            <ion-card-title>{{ 'addon.mod_lesson.lessonstats' | translate }}</ion-card-title>
                        </ion-card-header>

                        <!-- In tablet, max 2 rows with 3 columns. -->
                        <ion-grid class="ion-text-wrap ion-hide-md-down">
                            <ion-row *ngIf="overview.lessonscored">
                                <ion-col class="ion-text-center">
                                    <p class="item-heading">{{ 'addon.mod_lesson.averagescore' | translate }}</p>
                                    <p *ngIf="overview.numofattempts > 0">
                                        {{ 'core.percentagenumber' | translate:{$a: overview.avescore} }}
                                    </p>
                                    <p *ngIf="overview.numofattempts <= 0">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>

                                <ion-col class="ion-text-center">
                                    <p class="item-heading">{{ 'addon.mod_lesson.highscore' | translate }}</p>
                                    <p *ngIf="overview.highscore !== null">
                                        {{ 'core.percentagenumber' | translate:{$a: overview.highscore} }}
                                    </p>
                                    <p *ngIf="overview.highscore === null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>

                                <ion-col class="ion-text-center">
                                    <p class="item-heading">{{ 'addon.mod_lesson.lowscore' | translate }}</p>
                                    <p *ngIf="overview.lowscore !== null">
                                        {{ 'core.percentagenumber' | translate:{$a: overview.lowscore} }}
                                    </p>
                                    <p *ngIf="overview.lowscore === null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>
                            </ion-row>
                            <ion-row>
                                <ion-col class="ion-text-center">
                                    <p class="item-heading">{{ 'addon.mod_lesson.averagetime' | translate }}</p>
                                    <p *ngIf="overview.avetime !== null && overview.numofattempts">{{ avetimeReadable }}</p>
                                    <p *ngIf="overview.avetime === null || !overview.numofattempts">
                                        {{ 'addon.mod_lesson.notcompleted' | translate }}
                                    </p>
                                </ion-col>

                                <ion-col class="ion-text-center">
                                    <p class="item-heading">{{ 'addon.mod_lesson.hightime' | translate }}</p>
                                    <p *ngIf="overview.hightime !== null">{{ hightimeReadable }}</p>
                                    <p *ngIf="overview.hightime === null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>

                                <ion-col class="ion-text-center">
                                    <p class="item-heading">{{ 'addon.mod_lesson.lowtime' | translate }}</p>
                                    <p *ngIf="overview.lowtime !== null">{{ lowtimeReadable }}</p>
                                    <p *ngIf="overview.lowtime === null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>
                            </ion-row>
                        </ion-grid>

                        <!-- In phone, 3 rows with 1 or 2 columns. -->
                        <ion-grid class="ion-text-wrap ion-hide-md-up">
                            <ion-row>
                                <ion-col class="ion-text-center" *ngIf="overview.lessonscored">
                                    <p class="item-heading">{{ 'addon.mod_lesson.averagescore' | translate }}</p>
                                    <p *ngIf="overview.numofattempts > 0">
                                        {{ 'core.percentagenumber' | translate:{$a: overview.avescore} }}
                                    </p>
                                    <p *ngIf="overview.numofattempts <= 0">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>

                                <ion-col [ngClass]="{'ion-text-center': overview.lessonscored}">
                                    <p class="item-heading">{{ 'addon.mod_lesson.averagetime' | translate }}</p>
                                    <p *ngIf="overview.avetime !== null && overview.numofattempts">{{ avetimeReadable }}</p>
                                    <p *ngIf="overview.avetime === null || !overview.numofattempts">
                                        {{ 'addon.mod_lesson.notcompleted' | translate }}
                                    </p>
                                </ion-col>
                            </ion-row>
                            <ion-row>
                                <ion-col class="ion-text-center" *ngIf="overview.lessonscored">
                                    <p class="item-heading">{{ 'addon.mod_lesson.highscore' | translate }}</p>
                                    <p *ngIf="overview.highscore !== null">
                                        {{ 'core.percentagenumber' | translate:{$a: overview.highscore} }}
                                    </p>
                                    <p *ngIf="overview.highscore === null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>

                                <ion-col [ngClass]="{'ion-text-center': overview.lessonscored}">
                                    <p class="item-heading">{{ 'addon.mod_lesson.hightime' | translate }}</p>
                                    <p *ngIf="overview.hightime !== null">{{ hightimeReadable }}</p>
                                    <p *ngIf="overview.hightime === null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>
                            </ion-row>
                            <ion-row>
                                <ion-col class="ion-text-center" *ngIf="overview.lessonscored">
                                    <p class="item-heading">{{ 'addon.mod_lesson.lowscore' | translate }}</p>
                                    <p *ngIf="overview.lowscore !== null">
                                        {{ 'core.percentagenumber' | translate:{$a: overview.lowscore} }}
                                    </p>
                                    <p *ngIf="overview.lowscore === null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>

                                <ion-col [ngClass]="{'ion-text-center': overview.lessonscored}">
                                    <p class="item-heading">{{ 'addon.mod_lesson.lowtime' | translate }}</p>
                                    <p *ngIf="overview.lowtime !== null">{{ lowtimeReadable }}</p>
                                    <p *ngIf="overview.lowtime === null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                </ion-col>
                            </ion-row>
                        </ion-grid>
                    </ion-card>

                    <!-- List of students that have retakes. -->
                    <ion-card *ngIf="overview">
                        <ion-card-header class="ion-text-wrap">
                            <ion-card-title>{{ 'addon.mod_lesson.overview' | translate }}</ion-card-title>
                        </ion-card-header>

                        <ion-item class="ion-text-wrap" *ngFor="let student of overview.students" button (click)="openRetake(student.id)"
                            [detail]="true">
                            <core-user-avatar [user]="student" slot="start" [userId]="student.id" [courseId]="courseId" />
                            <ion-label>
                                <p class="item-heading">{{ student.fullname }}</p>
                                <core-progress-bar [progress]="student.bestgrade" a11yText="addon.mod_lesson.grade" />
                            </ion-label>
                        </ion-item>
                    </ion-card>
                </core-loading>
            </ng-template>
        </core-tab>
    </core-tabs>

    <div collapsible-footer *ngIf="!showLoading" slot="fixed">
        <div class="list-item-limited-width" *ngIf="!canViewReports && ((lesson && !preventReasons.length) || retakeToReview)">
            <ng-container *ngTemplateOutlet="buttons" />
        </div>

        <core-course-module-navigation [courseId]="courseId" [currentModuleId]="module.id" />
    </div>
</core-loading>


<ng-template #buttons>
    <ng-container *ngIf="retakeToReview">
        <!-- A retake was finished in a synchronization, allow reviewing it. -->
        <ion-item class="ion-text-wrap">
            <ion-label class="ion-padding-bottom">
                {{ 'addon.mod_lesson.retakefinishedinsync' | translate }}
            </ion-label>
        </ion-item>
        <ion-button class="ion-text-wrap ion-margin" expand="block" (click)="review()">
            {{ 'addon.mod_lesson.review' | translate }}
        </ion-button>
    </ng-container>

    <ng-container *ngIf="lesson && !preventReasons.length">
        <ion-item class="ion-text-wrap" *ngIf="leftDuringTimed && !lesson.timelimit && !finishedOffline">
            <!-- User left during the session and there is no time limit, ask to continue. -->
            <ion-label>
                <p [innerHTML]="'addon.mod_lesson.youhaveseen' | translate"></p>
                <ion-row>
                    <ion-col>
                        <ion-button expand="block" fill="outline" (click)="start(false)">
                            {{ 'core.no' | translate }}
                        </ion-button>
                    </ion-col>
                    <ion-col>
                        <ion-button expand="block" (click)="start(true)">
                            {{ 'core.yes' | translate }}
                        </ion-button>
                    </ion-col>
                </ion-row>
            </ion-label>
        </ion-item>

        <ng-container *ngIf="leftDuringTimed && lesson.timelimit && lesson.retake && !finishedOffline">
            <ion-item class="ion-text-wrap">
                <!-- User left during the session with time limit and retakes allowed, ask to continue. -->
                <ion-label [innerHTML]="'addon.mod_lesson.leftduringtimed' | translate" />
            </ion-item>
            <ion-button class="ion-text-wrap ion-margin" expand="block" (click)="start(false)">
                {{ 'addon.mod_lesson.continue' | translate }}
            </ion-button>
        </ng-container>

        <ion-item class="ion-text-wrap" *ngIf="leftDuringTimed && lesson.timelimit && !lesson.retake">
            <!-- User left during the session with time limit and retakes not allowed.
                This should be handled by preventMessages. -->
            <ion-label [innerHTML]="'addon.mod_lesson.leftduringtimednoretake' | translate" />
        </ion-item>

        <ng-container *ngIf="!leftDuringTimed && !finishedOffline">
            <!-- User hasn't left during the session, show a start button. -->
            <ion-button class="ion-text-wrap ion-margin" expand="block" *ngIf="!canManage" (click)="start(false)">
                {{ 'core.start' | translate }}
            </ion-button>
            <ion-button class="ion-text-wrap ion-margin" expand="block" fill="outline" *ngIf="canManage" (click)="start(false)">
                <ion-icon name="fas-magnifying-glass" slot="start" aria-hidden="true" />
                {{ 'addon.mod_lesson.preview' | translate }}
            </ion-button>
        </ng-container>

        <ion-button class="ion-text-wrap ion-margin" *ngIf="finishedOffline" expand="block" (click)="start(true)">
            <!-- There's an attempt finished in offline. Let the user continue, showing the end of lesson. -->
            {{ 'addon.mod_lesson.continue' | translate }}
        </ion-button>
    </ng-container>
</ng-template>
