From e0161613dd53e8a6867f6d4ecc6198ec837c1f55 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=BA=90=E6=96=87=E9=9B=A8?=
 <41315874+fumiama@users.noreply.github.com>
Date: Wed, 22 Mar 2023 22:32:51 +0800
Subject: [PATCH] user.db add table Regex

---
 backend/global/file.go | 15 ++++----
 backend/global/user.go | 84 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 92 insertions(+), 7 deletions(-)

diff --git a/backend/global/file.go b/backend/global/file.go
index ed437dc..b629760 100644
--- a/backend/global/file.go
+++ b/backend/global/file.go
@@ -52,9 +52,9 @@ func (pt PaperType) MiddleFinal() string {
 func (pt PaperType) SetMiddleFinal(x string) PaperType {
 	n := PaperType(0)
 	switch x {
-	case "期中":
+	case "中":
 		n = 1 << 4
-	case "期末":
+	case "末":
 		n = 2 << 4
 	}
 	return pt | n
@@ -72,12 +72,12 @@ func (pt PaperType) FirstSecond() string {
 	}
 }
 
-func (pt PaperType) SetFirstSecond(x string) PaperType {
+func (pt PaperType) SetFirstSecond(x byte) PaperType {
 	n := PaperType(0)
 	switch x {
-	case "第1学期":
+	case '1':
 		n = 1 << 8
-	case "第2学期":
+	case '2':
 		n = 2 << 8
 	}
 	return pt | n
@@ -151,6 +151,9 @@ type File struct {
 	Year      StudyYear
 	Type      PaperType
 	Date      uint32        // Date is the yyyymmdd of 考试日期
+	UID       int           // UID is the uploader's ID
+	UpTime    int64         // UpTime is time.Now().Unix() when uploading
+	Size      int64         // Size of the original file
 	Time      time.Duration // Time is 考试时长
 	Class     string        // Class is 考试科目
 	Rate      string        // Rate is 成绩构成比例
@@ -158,8 +161,6 @@ type File struct {
 	Questions []byte        // Questions is for json struct QuestionJSON
 }
 
-func (f *FileDatabase) AddFile() {}
-
 // QuestionJSON is the struct representation of File.Questions
 type QuestionJSON struct {
 	Name   string         `json:"name"`   // Name is name or Question ID
diff --git a/backend/global/user.go b/backend/global/user.go
index 3eb19a4..3e94ddf 100644
--- a/backend/global/user.go
+++ b/backend/global/user.go
@@ -3,6 +3,8 @@ package global
 import (
 	"errors"
 	"os"
+	"reflect"
+	"regexp"
 	"strconv"
 	"time"
 
@@ -64,6 +66,7 @@ const (
 	UserTableUser            = "user"
 	UserTableMessage         = "msg"
 	UserTableMonthlyAPIVisit = "visit"
+	UserTableRegex           = "re"
 )
 
 var (
@@ -77,6 +80,9 @@ var (
 	ErrUsernameExists    = errors.New("username exists")
 	ErrInvalidName       = errors.New("invalid name")
 	ErrInvalidContact    = errors.New("invalid contact")
+	ErrInvalidFieldName  = errors.New("invalid field name")
+	ErrNoSuchFieldName   = errors.New("no such field name")
+	ErrEmptyRegex        = errors.New("empty regex")
 )
 
 func init() {
@@ -103,6 +109,10 @@ func init() {
 	if err != nil {
 		panic(err)
 	}
+	err = UserDB.db.Create(UserTableRegex, &Regex{})
+	if err != nil {
+		panic(err)
+	}
 	if isinit { // 添加初始账户
 		UserDB.AddUser(&User{
 			Role: RoleSuper,
@@ -786,3 +796,77 @@ func (u *UserDatabase) GetAnnualAPIVisitCount() (cnts [12]uint32) {
 	}
 	return
 }
+
+// Regex stores user's config of splitting docx file
+type Regex struct {
+	ID     int    // ID is User(ID)
+	Title  string // Title default `.*(\d{4})\s*-.*学年.*(\d).*([中末]).*([AB])\s*卷`
+	Class  string // Class default `考试科目：\s*(\S+)\s*`
+	OpenCl string // OpenCl default `考试形式：\s*(\S+)\s*`
+	Date   string // Date default `考试日期：\s*(\d+)\s*年\s*(\d+)\s*月\s*(\d+)\s*日`
+	Time   string // Time default `考试时长：\s*(\d+)\s*分钟`
+	Rate   string // Rate default `成绩构成比例：\s*(.*%)\s*`
+	Major  string // Major default `([一二三四五六七八九十]+)、\s*(.*)\s*（.*([空题]?)\s*(\d*).*共\s*(\d+)\s*分.*）`
+	Sub    string // Sub default `(\d+)、`
+}
+
+func newRegex() (reg Regex) {
+	reg.Title = `.*(\d{4})\s*-.*学年.*(\d).*([中末]).*([AB])\s*卷`
+	reg.Class = `考试科目：\s*(\S+)\s*`
+	reg.OpenCl = `考试形式：\s*(\S+)\s*`
+	reg.Date = `考试日期：\s*(\d+)\s*年\s*(\d+)\s*月\s*(\d+)\s*日`
+	reg.Time = `考试时长：\s*(\d+)\s*分钟`
+	reg.Rate = `成绩构成比例：\s*(.*%)\s*`
+	reg.Major = `([一二三四五六七八九十]+)、\s*(.*)\s*（.*([空题]?)\s*(\d*).*共\s*(\d+)\s*分.*）`
+	reg.Sub = `(\d+)、`
+	return
+}
+
+// SetUserRegex set Regex.name = re
+func (u *UserDatabase) SetUserRegex(id int, name, re string) error {
+	if name == "" || name == "ID" {
+		return ErrInvalidFieldName
+	}
+	if re == "" {
+		return ErrEmptyRegex
+	}
+	user, err := UserDB.GetUserByID(id)
+	if err != nil {
+		return err
+	}
+	if !user.IsFileManager() {
+		return ErrInvalidRole
+	}
+	_, err = regexp.Compile(re)
+	if err != nil {
+		return err
+	}
+	reg := newRegex()
+	rreg := reflect.ValueOf(&reg).Elem()
+	f := rreg.FieldByName(name)
+	if !f.IsValid() {
+		return ErrNoSuchFieldName
+	}
+	u.mu.Lock()
+	defer u.mu.Unlock()
+	_ = u.db.Find(UserTableRegex, &reg, "WHERE ID="+strconv.Itoa(id))
+	reg.ID = id
+	f.SetString(re)
+	return u.db.Insert(UserTableRegex, &reg)
+}
+
+// GetUserRegex default newRegex()
+func (u *UserDatabase) GetUserRegex(id int) (*Regex, error) {
+	user, err := UserDB.GetUserByID(id)
+	if err != nil {
+		return nil, err
+	}
+	if !user.IsFileManager() {
+		return nil, ErrInvalidRole
+	}
+	reg := newRegex()
+	u.mu.RLock()
+	_ = u.db.Find(UserTableRegex, &reg, "WHERE ID="+strconv.Itoa(id))
+	u.mu.RUnlock()
+	return &reg, nil
+}