ab37aeb2fc
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Extract business logic from gRPC handlers into a dedicated service package. Add context support throughout for cancellation and timeouts. Move models to their own package, remove hardcoded credentials from config, and simplify parsers to only handle HTML parsing.
85 lines
2.4 KiB
Go
85 lines
2.4 KiB
Go
package service
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import (
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"context"
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"log/slog"
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"schedule_converter/client"
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"schedule_converter/models"
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"schedule_converter/parser"
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apperr "schedule_converter/pkg/errors"
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pb "schedule_converter/proto/runner"
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)
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// GetGrades 获取成绩：登录 → 优先 GPA 页面 → 回退到成绩页面 → 解析 → 转换为 pb 结果。
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func (s *Service) GetGrades(ctx context.Context, req *pb.GetGradesPayload) (*pb.GradesResultData, error) {
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log := slog.With("username", req.Username, "semester", req.Semester)
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httpClient, err := s.newAuthenticatedClient(ctx, req.Username, req.Password, "")
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if err != nil {
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return nil, err
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}
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var gpaSummary *pb.GpaSummary
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gpaHTML, err := client.FetchHTML(ctx, httpClient, "GET", "/xfj/queryListXfj", nil, "", "")
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if err != nil {
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log.Warn("获取GPA页面失败，尝试成绩页面", "error", err)
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gradesHTML, ferr := client.FetchHTML(ctx, httpClient, "GET", "/cjcx/queryQmcj", nil, "", "")
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if ferr != nil {
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return nil, apperr.New("fetch_grades", ferr, "获取成绩失败")
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}
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grades, perr := parser.ParseGradesHTML(gradesHTML)
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if perr != nil {
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return nil, apperr.New("parse_grades", perr, "解析成绩失败")
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}
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return &pb.GradesResultData{
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StudentId: req.Username,
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Semester: req.Semester,
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Grades: convertGrades(grades),
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}, nil
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}
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summary, grades, err := parser.ParseGPAHTML(gpaHTML)
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if err != nil {
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return nil, apperr.New("parse_gpa", err, "解析学分绩失败")
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}
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if summary != nil {
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gpaSummary = &pb.GpaSummary{
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AverageGpa: summary.AverageGPA,
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Rank: summary.Rank,
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ExamTotalGpa: summary.ExamTotalGPA,
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ExamTotalCredits: summary.ExamTotalCredits,
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FailCredits: summary.FailCredits,
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Semesters: summary.Semesters,
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}
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}
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return &pb.GradesResultData{
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StudentId: req.Username,
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Semester: req.Semester,
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Grades: convertGrades(grades),
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GpaSummary: gpaSummary,
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}, nil
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}
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// convertGrades 将内部成绩模型转换为 pb.Grade 列表。
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func convertGrades(grades []models.GradeEntry) []*pb.Grade {
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result := make([]*pb.Grade, 0, len(grades))
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for _, g := range grades {
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result = append(result, &pb.Grade{
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Term: g.Term,
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CourseCode: g.Code,
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CourseName: g.Name,
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Nature: g.Nature,
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Category: g.Category,
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Credit: g.Credit,
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Score: g.Score,
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GradePoint: g.GradePoint,
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IsExam: g.IsExam,
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})
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}
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return result
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}
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