// Student grades demo. Fictional records; in-memory only.
// Paste the entire file into Tessera Console, then press Enter.
class GradeCell: Column {
    width: Number
    function measure(self: GradeCell, mount: Mount, constraints: Constraints): MeasureResult {
        size = Column.measure(self, mount, constraints)
        size.width = self.width
        return size
    }
}
class GradePanel: Column {
    function paint(self: GradePanel, mount: Mount, geometry: Bounds): DisplayList {
        fill = PaintCommand()
        fill.kind = "roundedRect"
        fill.x = geometry.x
        fill.y = geometry.y
        fill.width = geometry.width
        fill.height = geometry.height
        fill.radius = 12
        fill.color = "#FFFFFF"
        return DisplayList(ObjectList(fill))
    }
}
class Student {
    name: String
    number: String
    chinese: Number
    math: Number
    english: Number
    status: String
}
function gradeCell(content: Block, width: Number): Block {
    return GradeCell(0, 0, content, width)
}
function gradeRow(student: Student): Block {
    return Column(0, 12,
        Row(0, 0,
            gradeCell(TextBlock(student.name), 150),
            gradeCell(TextBlock(student.number, 1, "#7A8390"), 120),
            gradeCell(ui.textOf(student, "chinese"), 100),
            gradeCell(ui.textOf(student, "math"), 100),
            gradeCell(ui.textOf(student, "english"), 100),
            gradeCell(ui.textOf(student, "status", 1, "#526C83"), 160)),
        RectBlock(730, 1, 0, "#EDF0F3"))
}
class GradeCenter {
    table: Column
    all: Column
    attention: Column
    student: Student
    pending: Number
    message: String
    function showAll(self: GradeCenter, event: Event): Unit {
        self.table.replace(0, self.all)
        self.message = "正在查看全部 6 位学生"
    }
    function showAttention(self: GradeCenter, event: Event): Unit {
        self.table.replace(0, self.attention)
        self.message = "林沐的数学成绩有一条复核记录"
    }
    function review(self: GradeCenter, event: Event): Unit {
        self.student.math = 68
        self.student.status = "已复核"
        self.pending = 0
        self.message = "已录入复核结果：林沐 · 数学 58 → 68"
    }
    function reset(self: GradeCenter, event: Event): Unit {
        self.student.math = 58
        self.student.status = "待复核"
        self.pending = 1
        self.table.replace(0, self.all)
        self.message = "已恢复示例数据"
    }
}
studentLin = Student("林沐", "2026001", 86, 58, 91, "待复核")
studentChen = Student("陈知夏", "2026002", 94, 96, 93, "已确认")
studentXu = Student("许星河", "2026003", 82, 88, 85, "已确认")
studentZhou = Student("周予安", "2026004", 91, 89, 95, "已确认")
studentSu = Student("苏映雪", "2026005", 88, 92, 90, "已确认")
studentLu = Student("陆景行", "2026006", 79, 84, 87, "已确认")
allGradeRows = Column(0, 14, gradeRow(studentLin), gradeRow(studentChen), gradeRow(studentXu), gradeRow(studentZhou), gradeRow(studentSu), gradeRow(studentLu))
attentionGradeRows = Column(0, 14, gradeRow(studentLin))
gradeTable = Column(0, 0, allGradeRows)
gradeCenter = GradeCenter(gradeTable, allGradeRows, attentionGradeRows, studentLin, 1, "正在查看全部 6 位学生")
showAllGrades = Button("全部学生")
showAttentionGrades = Button("查看复核记录")
reviewGrade = Button("录入复核成绩")
resetGrades = Button("恢复示例数据")
showAllGrades.on("click", gradeCenter.showAll)
showAttentionGrades.on("click", gradeCenter.showAttention)
reviewGrade.on("click", gradeCenter.review)
resetGrades.on("click", gradeCenter.reset)
gradeHeader = Row(0, 0,
    gradeCell(TextBlock("学生", 1, "#7A8390"), 150),
    gradeCell(TextBlock("学号", 1, "#7A8390"), 120),
    gradeCell(TextBlock("语文", 1, "#7A8390"), 100),
    gradeCell(TextBlock("数学", 1, "#7A8390"), 100),
    gradeCell(TextBlock("英语", 1, "#7A8390"), 100),
    gradeCell(TextBlock("状态", 1, "#7A8390"), 160))
gradeSummary = Row(0, 40,
    Column(0, 6, TextBlock("学生人数", 1, "#7A8390"), TextBlock("6", 2)),
    Column(0, 6, TextBlock("考试科目", 1, "#7A8390"), TextBlock("3", 2)),
    Column(0, 6, TextBlock("待复核", 1, "#7A8390"), ui.textOf(gradeCenter, "pending", 2)))
gradesPage = Page()
gradesPage.title = "学生成绩管理中心"
gradesPage.render(Column(32, 20,
    TextBlock("学生成绩管理中心", 2, "#273444"),
    TextBlock("高一（3）班 · 2026 秋季阶段测评 · 虚构示例数据", 1, "#7A8390"),
    gradeSummary,
    Row(0, 10, showAllGrades, showAttentionGrades, reviewGrade, resetGrades),
    GradePanel(20, 16, gradeHeader, RectBlock(730, 1, 0, "#E5EAF0"), gradeTable),
    ui.textOf(gradeCenter, "message", 1, "#526C83")))