151 lines
3.2 KiB
JavaScript
151 lines
3.2 KiB
JavaScript
// pages/gpa/gpa.js
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const { calculateGPA, showSuccess, showError } = require('../../utils/util.js')
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const learningTracker = require('../../utils/learningTracker.js')
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Page({
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data: {
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courses: [],
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courseName: '',
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courseScore: '',
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courseCredit: '',
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totalGPA: 0,
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totalCredits: 0
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},
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onLoad() {
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this.loadCourses()
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},
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onShow() {
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// 开始跟踪学习时间
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learningTracker.onPageShow('tools')
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},
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onHide() {
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// 停止跟踪学习时间
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learningTracker.onPageHide()
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},
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onUnload() {
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// 记录学习时长
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learningTracker.onPageUnload()
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},
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// 加载已保存的课程
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loadCourses() {
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const courses = wx.getStorageSync('gpaCourses') || []
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this.setData({ courses })
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this.calculateTotal()
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},
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// 课程名称输入
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onNameInput(e) {
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this.setData({ courseName: e.detail.value })
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},
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// 成绩输入
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onScoreInput(e) {
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this.setData({ courseScore: e.detail.value })
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},
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// 学分输入
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onCreditInput(e) {
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this.setData({ courseCredit: e.detail.value })
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},
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// 添加课程
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onAddCourse() {
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const { courseName, courseScore, courseCredit, courses } = this.data
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if (!courseName.trim()) {
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showError('请输入课程名称')
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return
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}
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const score = parseFloat(courseScore)
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const credit = parseFloat(courseCredit)
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if (isNaN(score) || score < 0 || score > 100) {
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showError('请输入有效的成绩（0-100）')
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return
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}
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if (isNaN(credit) || credit <= 0) {
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showError('请输入有效的学分')
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return
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}
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const newCourse = {
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id: Date.now(),
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name: courseName.trim(),
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score: score,
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credit: credit
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}
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courses.push(newCourse)
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wx.setStorageSync('gpaCourses', courses)
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this.setData({
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courses,
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courseName: '',
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courseScore: '',
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courseCredit: ''
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})
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this.calculateTotal()
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showSuccess('添加成功')
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},
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// 删除课程
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onDeleteCourse(e) {
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const { id } = e.currentTarget.dataset
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wx.showModal({
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title: '确认删除',
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content: '确定要删除这门课程吗？',
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success: (res) => {
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if (res.confirm) {
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let { courses } = this.data
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courses = courses.filter(course => course.id !== id)
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wx.setStorageSync('gpaCourses', courses)
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this.setData({ courses })
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this.calculateTotal()
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showSuccess('删除成功')
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}
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}
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})
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},
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// 计算总GPA
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calculateTotal() {
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const { courses } = this.data
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const gpa = calculateGPA(courses)
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const totalCredits = courses.reduce((sum, course) => sum + course.credit, 0)
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this.setData({
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totalGPA: gpa,
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totalCredits: totalCredits
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})
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},
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// 清空所有
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onClearAll() {
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wx.showModal({
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title: '确认清空',
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content: '确定要清空所有课程吗？',
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success: (res) => {
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if (res.confirm) {
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wx.removeStorageSync('gpaCourses')
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this.setData({
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courses: [],
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totalGPA: 0,
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totalCredits: 0
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})
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showSuccess('已清空')
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}
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}
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})
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}
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})
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