fix up git

2026-06-30 15:06:12 +07:00
parent 11e5a76977
commit 38e22b3390
13 changed files with 883 additions and 18 deletions
--- a/server/internal/handlers/handlers_exam_submissions.go
+++ b/server/internal/handlers/handlers_exam_submissions.go
@@ -231,6 +231,10 @@ func bundleSubmissionZips(rows []submissionRow, destZipPath string) (warnings []
 }

 func collectSubmissionZipFiles(rows []submissionRow) (files []gitPathFile, warnings []string) {
+	return collectSubmissionZipFilesWithPrefix(rows, true)
+}
+
+func collectSubmissionZipFilesWithPrefix(rows []submissionRow, useStudentFolder bool) (files []gitPathFile, warnings []string) {
 	byPath := map[string]gitPathFile{}
 	usedFolders := map[string]int{}
 	for _, row := range rows {
@@ -238,13 +242,17 @@ func collectSubmissionZipFiles(rows []submissionRow) (files []gitPathFile, warni
 			warnings = append(warnings, fmt.Sprintf("bài SV %d: không tìm thấy file", row.StudentRkID))
 			continue
 		}
-		folder := studentSubmissionFolder(row.StudentCode, row.FullName)
-		if n := usedFolders[folder]; n > 0 {
-			folder = fmt.Sprintf("%s_%d", folder, n+1)
+		prefix := ""
+		if useStudentFolder {
+			folder := studentSubmissionFolder(row.StudentCode, row.FullName)
+			if n := usedFolders[folder]; n > 0 {
+				folder = fmt.Sprintf("%s_%d", folder, n+1)
+			}
+			usedFolders[folder]++
+			prefix = folder
 		}
-		usedFolders[folder]++

-		skipped, err := copySubmissionZipEntries(row.FilePath, folder, func(destPath string, open func() (io.ReadCloser, error), size int64) error {
+		skipped, err := copySubmissionZipEntries(row.FilePath, prefix, func(destPath string, open func() (io.ReadCloser, error), size int64) error {
 			if size > githubBlobMaxBytes {
 				warnings = append(warnings, destPath+": file quá lớn (>100MB), bỏ qua")
 				return nil
@@ -262,11 +270,11 @@ func collectSubmissionZipFiles(rows []submissionRow) (files []gitPathFile, warni
 			return nil
 		})
 		if err != nil {
-			warnings = append(warnings, folder+": "+err.Error())
+			warnings = append(warnings, prefix+": "+err.Error())
 			continue
 		}
 		for _, s := range skipped {
-			warnings = append(warnings, folder+"/"+s)
+			warnings = append(warnings, prefix+"/"+s)
 		}
 	}
 	files = make([]gitPathFile, 0, len(byPath))
@@ -453,6 +461,8 @@ func PublishExamSubmissionsGitHandler(db *gorm.DB) fiber.Handler {

 		room.GitPublishURL = viewURL
 		_ = db.Save(&room).Error
+		roomIDCopy := roomID
+		recordStaffGitHubRepo(db, staffID, owner, repo, repoHTML, models.GitPublishModeRoom, room.Name, &roomIDCopy, nil)

 		msg := fmt.Sprintf("Đã đẩy %d bài lên GitHub — mỗi sinh viên một folder.", len(rows))
 		if len(allWarn) > 0 {
@@ -471,3 +481,112 @@ func PublishExamSubmissionsGitHandler(db *gorm.DB) fiber.Handler {
 		})
 	}
 }
+
+// POST /api/exam-rooms/:id/submissions/publish-git-students — mỗi sinh viên một repo GitHub riêng
+func PublishExamSubmissionsGitPerStudentHandler(db *gorm.DB) fiber.Handler {
+	return func(c *fiber.Ctx) error {
+		staffID := middleware.StaffIDFromCtx(c)
+		if staffID == 0 {
+			return c.Status(401).JSON(fiber.Map{"error": "Unauthorized"})
+		}
+		token, ghLogin, err := loadStaffGitHubToken(db, staffID)
+		if err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return c.Status(401).JSON(fiber.Map{
+					"error":            "Chưa kết nối GitHub. Vào Tài khoản của tôi → Kết nối GitHub.",
+					"needsGitHubOAuth": true,
+				})
+			}
+			return c.Status(500).JSON(fiber.Map{"error": "Không đọc được token GitHub"})
+		}
+
+		roomID, err := parseUintParam(c, "id")
+		if err != nil {
+			return c.Status(400).JSON(fiber.Map{"error": "Invalid id"})
+		}
+		var room models.ExamRoom
+		if err := db.First(&room, roomID).Error; err != nil {
+			return c.Status(404).JSON(fiber.Map{"error": "Không tìm thấy phòng thi"})
+		}
+
+		rows, err := loadExamSubmissionRows(db, roomID)
+		if err != nil {
+			return c.Status(500).JSON(fiber.Map{"error": err.Error()})
+		}
+		if len(rows) == 0 {
+			return c.Status(400).JSON(fiber.Map{"error": "Chưa có bài nộp"})
+		}
+
+		branch := "main"
+		published := 0
+		var allWarn []string
+		var repoURLs []string
+		type studentRepo struct {
+			StudentRkID int64  `json:"studentRkId"`
+			StudentCode string `json:"studentCode"`
+			FullName    string `json:"fullName"`
+			URL         string `json:"url"`
+		}
+		studentRepos := make([]studentRepo, 0, len(rows))
+
+		for _, row := range rows {
+			files, unpackWarn := collectSubmissionZipFilesWithPrefix([]submissionRow{row}, false)
+			allWarn = append(allWarn, unpackWarn...)
+			if len(files) == 0 {
+				allWarn = append(allWarn, fmt.Sprintf("%s: không có file để đẩy", studentSubmissionFolder(row.StudentCode, row.FullName)))
+				continue
+			}
+			repoName, repoHTML, err := githubEnsureRepoForStudent(token, ghLogin, &room, &row)
+			if err != nil {
+				allWarn = append(allWarn, row.StudentCode+": "+err.Error())
+				continue
+			}
+			label := studentSubmissionFolder(row.StudentCode, row.FullName)
+			commitMsg := fmt.Sprintf("Simple Care: bài nộp %s — %s", label, room.Name)
+			viewURL, pushWarn, err := githubPushFiles(token, ghLogin, repoName, branch, files, commitMsg)
+			allWarn = append(allWarn, pushWarn...)
+			if err != nil {
+				allWarn = append(allWarn, label+": "+err.Error())
+				continue
+			}
+			_ = db.Model(&models.ExamSubmission{}).Where("id = ?", row.ID).
+				Updates(map[string]any{"git_repo_url": repoHTML, "git_publish_url": viewURL}).Error
+			subID := row.ID
+			roomIDCopy := roomID
+			recordStaffGitHubRepo(db, staffID, ghLogin, repoName, repoHTML, models.GitPublishModeStudent, label, &roomIDCopy, &subID)
+			published++
+			repoURLs = append(repoURLs, viewURL)
+			studentRepos = append(studentRepos, studentRepo{
+				StudentRkID: row.StudentRkID,
+				StudentCode: row.StudentCode,
+				FullName:    row.FullName,
+				URL:         viewURL,
+			})
+		}
+
+		if published == 0 {
+			return c.Status(502).JSON(fiber.Map{
+				"error":    "Không đẩy được repo nào",
+				"warnings": allWarn,
+			})
+		}
+
+		msg := fmt.Sprintf("Đã tạo %d repo GitHub — mỗi sinh viên một repo.", published)
+		if len(allWarn) > 0 {
+			msg += fmt.Sprintf(" (%d cảnh báo)", len(allWarn))
+		}
+		openURL := ""
+		if len(repoURLs) > 0 {
+			openURL = repoURLs[0]
+		}
+
+		return c.JSON(fiber.Map{
+			"ok":           true,
+			"published":    published,
+			"studentRepos": studentRepos,
+			"openUrl":      openURL,
+			"warnings":     allWarn,
+			"message":      msg,
+		})
+	}
+}
--- a/server/internal/handlers/handlers_github_oauth.go
+++ b/server/internal/handlers/handlers_github_oauth.go
@@ -64,7 +64,7 @@ func GitHubAuthorizeURLHandler(db *gorm.DB) fiber.Handler {
 			"https://github.com/login/oauth/authorize?client_id=%s&redirect_uri=%s&scope=%s&state=%s",
 			url.QueryEscape(clientID),
 			url.QueryEscape(redirectURI),
-			url.QueryEscape("repo"),
+			url.QueryEscape("repo delete_repo"),
 			url.QueryEscape(state),
 		)
 		return c.JSON(fiber.Map{"authorizeUrl": authorizeURL})
@@ -192,10 +192,11 @@ func GitHubStatusHandler(db *gorm.DB) fiber.Handler {
 			return c.JSON(fiber.Map{"connected": false})
 		}
 		return c.JSON(fiber.Map{
-			"connected":   true,
-			"githubLogin": row.GitHubLogin,
-			"connectedAt": row.ConnectedAt,
-			"scope":       row.Scope,
+			"connected":      true,
+			"githubLogin":    row.GitHubLogin,
+			"connectedAt":    row.ConnectedAt,
+			"scope":          row.Scope,
+			"canDeleteRepos": githubScopeAllowsDelete(row.Scope),
 		})
 	}
 }
@@ -209,6 +210,21 @@ func GitHubDisconnectHandler(db *gorm.DB) fiber.Handler {
 	}
 }

+func githubScopeAllowsDelete(scope string) bool {
+	scope = strings.ToLower(strings.TrimSpace(scope))
+	if scope == "" {
+		return false
+	}
+	for _, part := range strings.FieldsFunc(scope, func(r rune) bool {
+		return r == ' ' || r == ','
+	}) {
+		if part == "delete_repo" {
+			return true
+		}
+	}
+	return false
+}
+
 func githubGetUser(token string) (login string, err error) {
 	req, _ := http.NewRequest(http.MethodGet, "https://api.github.com/user", nil)
 	req.Header.Set("Authorization", "Bearer "+token)
@@ -399,3 +415,61 @@ func resolvePublishRepo(token, ghLogin string, room *models.ExamRoom) (owner, re
 	}
 	return owner, repo, branch, htmlURL, nil
 }
+
+func studentGitRepoNameCandidates(row submissionRow, room *models.ExamRoom) []string {
+	base := trimGitHubRepoName(strings.ToLower(studentSubmissionFolder(row.StudentCode, row.FullName)))
+	candidates := []string{
+		base,
+		fmt.Sprintf("%s-exam-%d", base, room.ID),
+		fmt.Sprintf("%s-%d", base, row.StudentRkID),
+		fmt.Sprintf("exam-%d-%d", room.ID, row.StudentRkID),
+	}
+	seen := map[string]bool{}
+	out := make([]string, 0, len(candidates))
+	for _, c := range candidates {
+		c = trimGitHubRepoName(c)
+		if seen[c] {
+			continue
+		}
+		seen[c] = true
+		out = append(out, c)
+	}
+	for i := 2; i <= 10; i++ {
+		c := trimGitHubRepoName(fmt.Sprintf("%s-%d", base, i))
+		if !seen[c] {
+			seen[c] = true
+			out = append(out, c)
+		}
+	}
+	return out
+}
+
+func githubEnsureRepoForStudent(token, owner string, room *models.ExamRoom, row *submissionRow) (repoName, htmlURL string, err error) {
+	if u := strings.TrimSpace(row.GitRepoURL); u != "" {
+		o, r, parseErr := parseGitHubRepo(u)
+		if parseErr == nil && strings.EqualFold(o, owner) {
+			if url, ok := githubGetRepo(token, owner, r); ok {
+				return r, url, nil
+			}
+		}
+	}
+	for _, candidate := range studentGitRepoNameCandidates(*row, room) {
+		if url, ok := githubGetRepo(token, owner, candidate); ok {
+			if u := strings.TrimSpace(row.GitRepoURL); u != "" {
+				if o, r, parseErr := parseGitHubRepo(u); parseErr == nil && strings.EqualFold(o, owner) && strings.EqualFold(r, candidate) {
+					return candidate, url, nil
+				}
+			}
+			continue
+		}
+		url, createErr := githubCreateRepo(token, owner, candidate, true)
+		if createErr == nil {
+			return candidate, url, nil
+		}
+		if isGitHubRepoNameTaken(createErr) {
+			continue
+		}
+		return "", "", createErr
+	}
+	return "", "", errors.New("không tạo được repo GitHub cho sinh viên")
+}
--- a/server/internal/handlers/handlers_github_repos.go
+++ b/server/internal/handlers/handlers_github_repos.go
@@ -0,0 +1,322 @@
+package handlers
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"server/internal/middleware"
+	"server/internal/models"
+
+	"github.com/gofiber/fiber/v2"
+	"gorm.io/gorm"
+)
+
+type githubRepoListItem struct {
+	Key          string `json:"key"`
+	OwnerLogin   string `json:"ownerLogin"`
+	RepoName     string `json:"repoName"`
+	RepoHTMLURL  string `json:"repoHtmlUrl"`
+	Private      bool   `json:"private"`
+	PublishMode  string `json:"publishMode,omitempty"`
+	ExamRoomID   *uint  `json:"examRoomId,omitempty"`
+	ExamRoomName string `json:"examRoomName,omitempty"`
+	StudentLabel string `json:"studentLabel,omitempty"`
+	CreatedAt    string `json:"createdAt"`
+	UpdatedAt    string `json:"updatedAt"`
+	FromSimpleCare bool `json:"fromSimpleCare"`
+}
+
+func githubDeleteRepo(token, owner, repo string) error {
+	apiURL := fmt.Sprintf("https://api.github.com/repos/%s/%s", url.PathEscape(owner), url.PathEscape(repo))
+	req, err := http.NewRequest(http.MethodDelete, apiURL, nil)
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Authorization", "Bearer "+token)
+	req.Header.Set("Accept", "application/vnd.github+json")
+	req.Header.Set("X-GitHub-Api-Version", "2022-11-28")
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode == http.StatusNotFound {
+		return nil
+	}
+	if resp.StatusCode >= 300 {
+		raw, _ := io.ReadAll(resp.Body)
+		msg := strings.TrimSpace(string(raw))
+		var errBody struct {
+			Message string `json:"message"`
+		}
+		_ = json.Unmarshal(raw, &errBody)
+		if m := strings.TrimSpace(errBody.Message); m != "" {
+			msg = m
+		}
+		if msg == "" {
+			msg = fmt.Sprintf("HTTP %d", resp.StatusCode)
+		}
+		if resp.StatusCode == http.StatusForbidden {
+			return fmt.Errorf("%s — token thiếu quyền delete_repo; ngắt kết nối rồi kết nối lại GitHub", msg)
+		}
+		return fmt.Errorf("%s", msg)
+	}
+	return nil
+}
+
+func githubListUserRepos(token string) ([]struct {
+	Name        string    `json:"name"`
+	FullName    string    `json:"full_name"`
+	HTMLURL     string    `json:"html_url"`
+	Private     bool      `json:"private"`
+	Description string    `json:"description"`
+	CreatedAt   time.Time `json:"created_at"`
+	UpdatedAt   time.Time `json:"updated_at"`
+}, error) {
+	var all []struct {
+		Name        string    `json:"name"`
+		FullName    string    `json:"full_name"`
+		HTMLURL     string    `json:"html_url"`
+		Private     bool      `json:"private"`
+		Description string    `json:"description"`
+		CreatedAt   time.Time `json:"created_at"`
+		UpdatedAt   time.Time `json:"updated_at"`
+	}
+	for page := 1; page <= 10; page++ {
+		apiURL := fmt.Sprintf("https://api.github.com/user/repos?per_page=100&page=%d&sort=updated&direction=desc", page)
+		req, err := http.NewRequest(http.MethodGet, apiURL, nil)
+		if err != nil {
+			return nil, err
+		}
+		req.Header.Set("Authorization", "Bearer "+token)
+		req.Header.Set("Accept", "application/vnd.github+json")
+		resp, err := http.DefaultClient.Do(req)
+		if err != nil {
+			return nil, err
+		}
+		var batch []struct {
+			Name        string    `json:"name"`
+			FullName    string    `json:"full_name"`
+			HTMLURL     string    `json:"html_url"`
+			Private     bool      `json:"private"`
+			Description string    `json:"description"`
+			CreatedAt   time.Time `json:"created_at"`
+			UpdatedAt   time.Time `json:"updated_at"`
+		}
+		if err := json.NewDecoder(resp.Body).Decode(&batch); err != nil {
+			resp.Body.Close()
+			return nil, err
+		}
+		resp.Body.Close()
+		if resp.StatusCode >= 300 {
+			return nil, fmt.Errorf("GitHub API lỗi (%d)", resp.StatusCode)
+		}
+		all = append(all, batch...)
+		if len(batch) < 100 {
+			break
+		}
+	}
+	return all, nil
+}
+
+type repoMeta struct {
+	PublishMode  string
+	ExamRoomID   *uint
+	ExamRoomName string
+	StudentLabel string
+}
+
+func repoMetaKey(owner, name string) string {
+	return strings.ToLower(owner) + "/" + strings.ToLower(name)
+}
+
+func buildRepoMetaMap(db *gorm.DB, staffID uint) map[string]repoMeta {
+	out := map[string]repoMeta{}
+	var tracked []models.StaffGitHubRepo
+	_ = db.Where("staff_id = ?", staffID).Find(&tracked).Error
+	roomNames := map[uint]string{}
+	for _, t := range tracked {
+		key := repoMetaKey(t.OwnerLogin, t.RepoName)
+		meta := repoMeta{
+			PublishMode:  t.PublishMode,
+			ExamRoomID:   t.ExamRoomID,
+			StudentLabel: t.StudentLabel,
+		}
+		if t.ExamRoomID != nil {
+			rid := *t.ExamRoomID
+			if name, ok := roomNames[rid]; ok {
+				meta.ExamRoomName = name
+			} else {
+				var room models.ExamRoom
+				if err := db.Select("name").First(&room, rid).Error; err == nil {
+					roomNames[rid] = room.Name
+					meta.ExamRoomName = room.Name
+				}
+			}
+		}
+		out[key] = meta
+	}
+	return out
+}
+
+func recordStaffGitHubRepo(db *gorm.DB, staffID uint, owner, repoName, htmlURL, publishMode, studentLabel string, examRoomID, submissionID *uint) {
+	owner = strings.TrimSpace(owner)
+	repoName = strings.TrimSpace(repoName)
+	if staffID == 0 || owner == "" || repoName == "" || htmlURL == "" {
+		return
+	}
+	_ = db.Where("staff_id = ? AND owner_login = ? AND repo_name = ?", staffID, owner, repoName).
+		Delete(&models.StaffGitHubRepo{}).Error
+	row := models.StaffGitHubRepo{
+		StaffID:      staffID,
+		OwnerLogin:   owner,
+		RepoName:     repoName,
+		RepoHTMLURL:  htmlURL,
+		ExamRoomID:   examRoomID,
+		SubmissionID: submissionID,
+		StudentLabel: studentLabel,
+		PublishMode:  publishMode,
+	}
+	_ = db.Create(&row).Error
+}
+
+// GET /api/auth/github/repos — toàn bộ repo trên tài khoản GitHub đã kết nối
+func GitHubListReposHandler(db *gorm.DB) fiber.Handler {
+	return func(c *fiber.Ctx) error {
+		staffID := middleware.StaffIDFromCtx(c)
+		token, ghLogin, err := loadStaffGitHubToken(db, staffID)
+		if err != nil {
+			return c.Status(401).JSON(fiber.Map{"error": "Chưa kết nối GitHub"})
+		}
+		ghRepos, err := githubListUserRepos(token)
+		if err != nil {
+			return c.Status(502).JSON(fiber.Map{"error": "Không tải repo từ GitHub: " + err.Error()})
+		}
+		metaMap := buildRepoMetaMap(db, staffID)
+		out := make([]githubRepoListItem, 0, len(ghRepos))
+		for _, r := range ghRepos {
+			parts := strings.SplitN(r.FullName, "/", 2)
+			owner := ghLogin
+			if len(parts) == 2 {
+				owner = parts[0]
+			}
+			key := owner + "/" + r.Name
+			item := githubRepoListItem{
+				Key:         key,
+				OwnerLogin:  owner,
+				RepoName:    r.Name,
+				RepoHTMLURL: r.HTMLURL,
+				Private:     r.Private,
+				CreatedAt:   r.CreatedAt.Format(time.RFC3339),
+				UpdatedAt:   r.UpdatedAt.Format(time.RFC3339),
+				FromSimpleCare: strings.Contains(strings.ToLower(r.Description), "simple care"),
+			}
+			if meta, ok := metaMap[repoMetaKey(owner, r.Name)]; ok {
+				item.PublishMode = meta.PublishMode
+				item.ExamRoomID = meta.ExamRoomID
+				item.ExamRoomName = meta.ExamRoomName
+				item.StudentLabel = meta.StudentLabel
+				item.FromSimpleCare = true
+			}
+			out = append(out, item)
+		}
+		return c.JSON(fiber.Map{"data": out, "total": len(out), "githubLogin": ghLogin})
+	}
+}
+
+// POST /api/auth/github/repos/bulk-delete — repos: ["owner/name", ...]
+func GitHubBulkDeleteReposHandler(db *gorm.DB) fiber.Handler {
+	return func(c *fiber.Ctx) error {
+		staffID := middleware.StaffIDFromCtx(c)
+		token, _, err := loadStaffGitHubToken(db, staffID)
+		if err != nil {
+			return c.Status(401).JSON(fiber.Map{"error": "Chưa kết nối GitHub"})
+		}
+		var authRow models.StaffGitHubAuth
+		_ = db.First(&authRow, "staff_id = ?", staffID).Error
+		if !githubScopeAllowsDelete(authRow.Scope) {
+			return c.Status(403).JSON(fiber.Map{
+				"error": "Token GitHub chưa có quyền xóa repo (delete_repo). Ngắt kết nối rồi bấm Kết nối lại GitHub.",
+			})
+		}
+		var req struct {
+			Repos []string `json:"repos"`
+			IDs   []uint   `json:"ids"` // legacy
+		}
+		if err := c.BodyParser(&req); err != nil {
+			return c.Status(400).JSON(fiber.Map{"error": "Invalid body"})
+		}
+		targets := make([]struct{ owner, name string }, 0)
+		for _, raw := range req.Repos {
+			raw = strings.TrimSpace(raw)
+			if raw == "" {
+				continue
+			}
+			parts := strings.SplitN(raw, "/", 2)
+			if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
+				continue
+			}
+			targets = append(targets, struct{ owner, name string }{owner: parts[0], name: parts[1]})
+		}
+		if len(targets) == 0 && len(req.IDs) > 0 {
+			var rows []models.StaffGitHubRepo
+			_ = db.Where("staff_id = ? AND id IN ?", staffID, req.IDs).Find(&rows).Error
+			for _, row := range rows {
+				targets = append(targets, struct{ owner, name string }{owner: row.OwnerLogin, name: row.RepoName})
+			}
+		}
+		if len(targets) == 0 {
+			return c.Status(400).JSON(fiber.Map{"error": "Chọn ít nhất một repo"})
+		}
+		deleted := 0
+		var failures []string
+		for _, t := range targets {
+			if err := githubDeleteRepo(token, t.owner, t.name); err != nil {
+				failures = append(failures, t.name+": "+err.Error())
+				continue
+			}
+			var row models.StaffGitHubRepo
+			if err := db.Where("staff_id = ? AND owner_login = ? AND repo_name = ?", staffID, t.owner, t.name).First(&row).Error; err == nil {
+				_ = db.Delete(&row).Error
+				clearLinkedGitURLs(db, row)
+			} else {
+				clearLinkedGitURLsByName(db, t.owner, t.name)
+			}
+			deleted++
+		}
+		return c.JSON(fiber.Map{
+			"ok":       deleted > 0,
+			"deleted":  deleted,
+			"failures": failures,
+			"message":  fmt.Sprintf("Đã xóa %d repo trên GitHub", deleted),
+		})
+	}
+}
+
+func clearLinkedGitURLs(db *gorm.DB, row models.StaffGitHubRepo) {
+	url := strings.TrimSpace(row.RepoHTMLURL)
+	if url == "" {
+		return
+	}
+	if row.ExamRoomID != nil && row.PublishMode == models.GitPublishModeRoom {
+		_ = db.Model(&models.ExamRoom{}).Where("id = ? AND git_repo_url = ?", *row.ExamRoomID, url).
+			Updates(map[string]any{"git_repo_url": "", "git_publish_url": ""}).Error
+	}
+	if row.SubmissionID != nil {
+		_ = db.Model(&models.ExamSubmission{}).Where("id = ? AND git_repo_url = ?", *row.SubmissionID, url).
+			Updates(map[string]any{"git_repo_url": "", "git_publish_url": ""}).Error
+	}
+}
+
+func clearLinkedGitURLsByName(db *gorm.DB, owner, repoName string) {
+	prefix := fmt.Sprintf("https://github.com/%s/%s", owner, repoName)
+	_ = db.Model(&models.ExamRoom{}).Where("git_repo_url LIKE ?", prefix+"%").
+		Updates(map[string]any{"git_repo_url": "", "git_publish_url": ""}).Error
+	_ = db.Model(&models.ExamSubmission{}).Where("git_repo_url LIKE ?", prefix+"%").
+		Updates(map[string]any{"git_repo_url": "", "git_publish_url": ""}).Error
+}