292 lines
11 KiB
Swift
292 lines
11 KiB
Swift
//
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// PreviewData.swift
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// TeachMate
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//
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// Created by Hongli on 2025/3/18.
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//
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import SwiftUI
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import SwiftData
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/// 提供预览所需的示例数据
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@MainActor
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enum PreviewData {
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// MARK: - 共享的日期和时间
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/// 当前学期开始日期（2025年春季学期）
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static let currentSemesterStartDate = Calendar.current.date(from: DateComponents(year: 2025, month: 2, day: 24))!
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/// 当前学期结束日期
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static let currentSemesterEndDate = Calendar.current.date(byAdding: .day, value: 18 * 7, to: currentSemesterStartDate)!
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/// 上一学期开始日期（2024年秋季学期）
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static let previousSemesterStartDate = Calendar.current.date(from: DateComponents(year: 2024, month: 9, day: 1))!
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/// 上一学期结束日期
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static let previousSemesterEndDate = Calendar.current.date(from: DateComponents(year: 2025, month: 1, day: 15))!
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// MARK: - 示例颜色
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/// 示例课程颜色
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static let courseColors = [
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"#D6EAF8", // 浅蓝色
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"#FADBD8", // 浅红色
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"#D5F5E3", // 浅绿色
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"#FCF3CF", // 浅黄色
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"#F5EEF8", // 浅紫色
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"#EAEDED", // 浅灰色
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"#FDEBD0" // 浅橙色
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]
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// MARK: - 示例课程名称和位置
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/// 常见课程名称
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static let courseNames = [
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"高等数学", "线性代数", "程序设计", "数据结构",
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"计算机网络", "操作系统", "软件工程", "数据库原理",
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"计算机组成原理", "编译原理", "人工智能", "机器学习",
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"离散数学", "概率论与数理统计", "算法设计与分析"
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]
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/// 常见教室位置
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static let locations = [
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"教学楼A-101", "教学楼A-102", "教学楼A-201", "教学楼A-202",
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"教学楼B-101", "教学楼B-102", "教学楼B-201", "教学楼B-202",
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"实验楼C-301", "实验楼C-302", "实验楼C-303", "实验楼C-304",
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"图书馆-多媒体教室", "综合楼-报告厅", "科技楼-机房"
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]
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/// 常见班级
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static let classes = [
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"云计算G23-1", "软件G22-3", "软件G22-4", "软件工程2班",
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"网络工程1班", "人工智能1班", "数据科学1班", "信息安全1班"
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]
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// MARK: - 创建预览容器
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/// 创建预览用的ModelContainer（包含所有示例数据）
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static func createContainer() -> ModelContainer {
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let container = try! ModelContainer(for: Semester.self, CourseModel.self, ClassSession.self,
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configurations: ModelConfiguration(isStoredInMemoryOnly: true))
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// 创建示例学期
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let currentSemester = Semester(
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title: "2024-2025-2",
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startDate: currentSemesterStartDate,
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endDate: currentSemesterEndDate,
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weeksCount: 18,
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isCurrent: true
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)
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let previousSemester = Semester(
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title: "2024-2025-1",
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startDate: previousSemesterStartDate,
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endDate: previousSemesterEndDate,
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weeksCount: 18
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)
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container.mainContext.insert(currentSemester)
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container.mainContext.insert(previousSemester)
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// 创建示例课程
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let course1 = CourseModel(name: courseNames[0], colorHex: courseColors[0])
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course1.semester = currentSemester
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course1.addSession(weekday: 1, timeSlot: 1, location: locations[0], schoolClass: classes[0])
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course1.addSession(weekday: 3, timeSlot: 2, location: locations[0], schoolClass: classes[0])
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let course2 = CourseModel(name: courseNames[1], colorHex: courseColors[1])
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course2.semester = currentSemester
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course2.addSession(weekday: 2, timeSlot: 3, location: locations[4], schoolClass: classes[0])
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let course3 = CourseModel(name: courseNames[2], colorHex: courseColors[2], isNew: true)
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course3.semester = currentSemester
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course3.addSession(weekday: 4, timeSlot: 4, location: locations[8], schoolClass: classes[0])
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course3.addSession(weekday: 5, timeSlot: 5, location: locations[8], schoolClass: classes[0])
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let course4 = CourseModel(name: courseNames[3], colorHex: courseColors[3])
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course4.semester = previousSemester
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course4.addSession(weekday: 1, timeSlot: 2, location: locations[1], schoolClass: classes[0])
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// 添加更多课程以展示丰富的数据
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let course5 = CourseModel(name: courseNames[4], colorHex: courseColors[4])
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course5.semester = currentSemester
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course5.addSession(weekday: 2, timeSlot: 1, location: locations[5], schoolClass: classes[1])
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let course6 = CourseModel(name: courseNames[5], colorHex: courseColors[5])
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course6.semester = currentSemester
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course6.addSession(weekday: 3, timeSlot: 3, location: locations[9], schoolClass: classes[1])
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course6.addSession(weekday: 5, timeSlot: 4, location: locations[9], schoolClass: classes[1])
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container.mainContext.insert(course1)
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container.mainContext.insert(course2)
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container.mainContext.insert(course3)
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container.mainContext.insert(course4)
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container.mainContext.insert(course5)
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container.mainContext.insert(course6)
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return container
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}
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/// 创建空的预览容器（用于添加新数据的表单）
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static func createEmptyContainer() -> ModelContainer {
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return try! ModelContainer(for: Semester.self, CourseModel.self, ClassSession.self,
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configurations: ModelConfiguration(isStoredInMemoryOnly: true))
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}
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/// 创建包含大量数据的预览容器（用于性能测试）
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static func createLargeDataContainer() -> ModelContainer {
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let container = try! ModelContainer(for: Semester.self, CourseModel.self, ClassSession.self,
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configurations: ModelConfiguration(isStoredInMemoryOnly: true))
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// 创建多个学期
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let oldStartDate1 = Calendar.current.date(byAdding: .year, value: -2, to: currentSemesterStartDate)!
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let oldEndDate1 = Calendar.current.date(byAdding: .day, value: 18 * 7, to: oldStartDate1)!
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let oldStartDate2 = Calendar.current.date(byAdding: .year, value: -1, to: currentSemesterStartDate)!
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let oldEndDate2 = Calendar.current.date(byAdding: .day, value: 18 * 7, to: oldStartDate2)!
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let prevEndDate = Calendar.current.date(byAdding: .day, value: 18 * 7, to: previousSemesterStartDate)!
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let semesters = [
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Semester(title: "2023-2024-1", startDate: oldStartDate1, endDate: oldEndDate1, weeksCount: 18),
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Semester(title: "2023-2024-2", startDate: oldStartDate2, endDate: oldEndDate2, weeksCount: 18),
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Semester(title: "2024-2025-1", startDate: previousSemesterStartDate, endDate: prevEndDate, weeksCount: 18),
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Semester(title: "2024-2025-2", startDate: currentSemesterStartDate, endDate: currentSemesterEndDate, weeksCount: 18, isCurrent: true)
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]
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for semester in semesters {
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container.mainContext.insert(semester)
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}
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// 为每个学期创建多个课程
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for semester in semesters {
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for i in 0..<10 {
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let courseIndex = i % courseNames.count
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let colorIndex = i % courseColors.count
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let course = CourseModel(name: courseNames[courseIndex], colorHex: courseColors[colorIndex])
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course.semester = semester
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// 为每个课程添加1-3个课时
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let sessionCount = (i % 3) + 1
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for j in 0..<sessionCount {
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let weekday = (j % 5) + 1
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let timeSlot = (j % 5) + 1
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let locationIndex = (i + j) % locations.count
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let classIndex = i % classes.count
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course.addSession(
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weekday: weekday,
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timeSlot: timeSlot,
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location: locations[locationIndex],
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schoolClass: classes[classIndex]
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)
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}
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container.mainContext.insert(course)
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}
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}
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return container
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}
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// MARK: - 专用预览容器
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/// 创建仅包含学期的预览容器（用于ContentView预览）
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static func createSemesterContainer() -> ModelContainer {
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let config = ModelConfiguration(isStoredInMemoryOnly: true)
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let container = try! ModelContainer(for: Semester.self, configurations: config)
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// 创建示例学期
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let currentSemester = Semester(
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title: "2024-2025-2",
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startDate: currentSemesterStartDate,
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endDate: currentSemesterEndDate,
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weeksCount: 18,
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isCurrent: true
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)
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let previousSemester = Semester(
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title: "2024-2025-1",
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startDate: previousSemesterStartDate,
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endDate: previousSemesterEndDate,
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weeksCount: 18,
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isCurrent: false
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)
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container.mainContext.insert(currentSemester)
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container.mainContext.insert(previousSemester)
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return container
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}
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// MARK: - 示例模型
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/// 创建示例学期（用于日历视图和课程表视图）
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static func createSampleSemester() -> Semester {
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return Semester(
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title: "2024-2025-2",
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startDate: currentSemesterStartDate,
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endDate: currentSemesterEndDate,
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weeksCount: 18,
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isCurrent: true
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)
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}
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/// 创建示例课程（用于课程详情视图）
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static func createSampleCourse() -> CourseModel {
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let course = CourseModel(name: courseNames[0], colorHex: courseColors[0])
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course.addSession(weekday: 1, timeSlot: 1, location: locations[0], schoolClass: classes[0])
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course.addSession(weekday: 3, timeSlot: 2, location: locations[0], schoolClass: classes[0])
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return course
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}
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/// 创建示例课时（用于课时详情视图）
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static func createSampleSession() -> ClassSession {
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let session = ClassSession(
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weekday: 1,
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timeSlot: 1,
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location: locations[0],
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schoolClass: classes[0]
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)
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// 设置关联的课程
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let course = createSampleCourse()
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session.course = course
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return session
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}
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// MARK: - 辅助方法
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/// 获取随机课程颜色
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static func randomCourseColor() -> String {
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return courseColors.randomElement() ?? courseColors[0]
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}
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/// 获取随机课程名称
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static func randomCourseName() -> String {
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return courseNames.randomElement() ?? courseNames[0]
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}
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/// 获取随机教室位置
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static func randomLocation() -> String {
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return locations.randomElement() ?? locations[0]
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}
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/// 获取随机班级
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static func randomClass() -> String {
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return classes.randomElement() ?? classes[0]
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}
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// MARK: - 预览修饰器
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/// 为预览添加标准边距和背景
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static func standardPreviewStyle<Content: View>(_ content: Content) -> some View {
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content
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.padding()
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.background(Color.white) // 使用简单的白色背景
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}
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}
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