112 lines
2.8 KiB
Dart
112 lines
2.8 KiB
Dart
import 'course.dart';
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/// Concurrent evaluation task status
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enum TaskStatus {
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waiting, // 等待开始
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preparing, // 准备评教（访问页面、解析问卷）
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countdown, // 倒计时等待
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submitting, // 提交中
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verifying, // 验证中
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completed, // 完成
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failed, // 失败
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}
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/// Concurrent evaluation task
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class ConcurrentTask {
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final int taskId;
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final Course course;
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TaskStatus status;
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String? statusMessage;
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int countdownRemaining;
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int countdownTotal;
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String? errorMessage;
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DateTime? startTime;
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DateTime? endTime;
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ConcurrentTask({
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required this.taskId,
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required this.course,
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this.status = TaskStatus.waiting,
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this.statusMessage,
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this.countdownRemaining = 0,
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this.countdownTotal = 0,
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this.errorMessage,
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this.startTime,
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this.endTime,
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});
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/// Get progress (0.0 to 1.0)
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double get progress {
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switch (status) {
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case TaskStatus.waiting:
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return 0.0;
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case TaskStatus.preparing:
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return 0.1;
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case TaskStatus.countdown:
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if (countdownTotal > 0) {
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return 0.1 +
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0.7 * (countdownTotal - countdownRemaining) / countdownTotal;
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}
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return 0.1;
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case TaskStatus.submitting:
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return 0.85;
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case TaskStatus.verifying:
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return 0.95;
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case TaskStatus.completed:
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case TaskStatus.failed:
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return 1.0;
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}
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}
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/// Get status display text
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String get statusText {
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if (statusMessage != null) return statusMessage!;
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switch (status) {
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case TaskStatus.waiting:
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return '等待开始';
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case TaskStatus.preparing:
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return '准备评教';
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case TaskStatus.countdown:
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return '等待提交 (${countdownRemaining}s)';
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case TaskStatus.submitting:
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return '提交中';
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case TaskStatus.verifying:
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return '验证中';
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case TaskStatus.completed:
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return '完成';
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case TaskStatus.failed:
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return '失败';
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}
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}
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/// Check if task is finished
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bool get isFinished =>
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status == TaskStatus.completed || status == TaskStatus.failed;
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/// Check if task is successful
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bool get isSuccess => status == TaskStatus.completed;
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ConcurrentTask copyWith({
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TaskStatus? status,
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String? statusMessage,
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int? countdownRemaining,
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int? countdownTotal,
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String? errorMessage,
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DateTime? startTime,
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DateTime? endTime,
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}) {
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return ConcurrentTask(
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taskId: taskId,
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course: course,
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status: status ?? this.status,
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statusMessage: statusMessage ?? this.statusMessage,
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countdownRemaining: countdownRemaining ?? this.countdownRemaining,
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countdownTotal: countdownTotal ?? this.countdownTotal,
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errorMessage: errorMessage ?? this.errorMessage,
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startTime: startTime ?? this.startTime,
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endTime: endTime ?? this.endTime,
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);
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}
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}
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