first commit

internal/handler/admin_handler.go

@@ -0,0 +1,165 @@
+package handler
+
+import (
+	"net/http"
+	"strconv"
+
+	"homework-manager/internal/middleware"
+	"homework-manager/internal/service"
+
+	"github.com/gin-gonic/gin"
+)
+
+type AdminHandler struct {
+	adminService  *service.AdminService
+	apiKeyService *service.APIKeyService
+}
+
+func NewAdminHandler() *AdminHandler {
+	return &AdminHandler{
+		adminService:  service.NewAdminService(),
+		apiKeyService: service.NewAPIKeyService(),
+	}
+}
+
+func (h *AdminHandler) getUserID(c *gin.Context) uint {
+	userID, _ := c.Get(middleware.UserIDKey)
+	return userID.(uint)
+}
+
+func (h *AdminHandler) Index(c *gin.Context) {
+	users, _ := h.adminService.GetAllUsers()
+	currentUserID := h.getUserID(c)
+
+	name, _ := c.Get(middleware.UserNameKey)
+
+	RenderHTML(c, http.StatusOK, "admin/users.html", gin.H{
+		"title":         "ユーザー管理",
+		"users":         users,
+		"currentUserID": currentUserID,
+		"isAdmin":       true,
+		"userName":      name,
+	})
+}
+
+func (h *AdminHandler) DeleteUser(c *gin.Context) {
+	adminID := h.getUserID(c)
+	targetID, err := strconv.ParseUint(c.Param("id"), 10, 32)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "無効なユーザーID"})
+		return
+	}
+
+	err = h.adminService.DeleteUser(adminID, uint(targetID))
+	if err != nil {
+		users, _ := h.adminService.GetAllUsers()
+		name, _ := c.Get(middleware.UserNameKey)
+
+		RenderHTML(c, http.StatusOK, "admin/users.html", gin.H{
+			"title":         "ユーザー管理",
+			"users":         users,
+			"currentUserID": adminID,
+			"error":         err.Error(),
+			"isAdmin":       true,
+			"userName":      name,
+		})
+		return
+	}
+
+	c.Redirect(http.StatusFound, "/admin/users")
+}
+
+func (h *AdminHandler) ChangeRole(c *gin.Context) {
+	adminID := h.getUserID(c)
+	targetID, err := strconv.ParseUint(c.Param("id"), 10, 32)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "無効なユーザーID"})
+		return
+	}
+	newRole := c.PostForm("role")
+
+	err = h.adminService.ChangeRole(adminID, uint(targetID), newRole)
+	if err != nil {
+		users, _ := h.adminService.GetAllUsers()
+		name, _ := c.Get(middleware.UserNameKey)
+
+		RenderHTML(c, http.StatusOK, "admin/users.html", gin.H{
+			"title":         "ユーザー管理",
+			"users":         users,
+			"currentUserID": adminID,
+			"error":         err.Error(),
+			"isAdmin":       true,
+			"userName":      name,
+		})
+		return
+	}
+
+	c.Redirect(http.StatusFound, "/admin/users")
+}
+
+func (h *AdminHandler) APIKeys(c *gin.Context) {
+	keys, _ := h.apiKeyService.GetAllAPIKeys()
+	name, _ := c.Get(middleware.UserNameKey)
+
+	RenderHTML(c, http.StatusOK, "admin/api_keys.html", gin.H{
+		"title":    "APIキー管理",
+		"apiKeys":  keys,
+		"isAdmin":  true,
+		"userName": name,
+	})
+}
+
+func (h *AdminHandler) CreateAPIKey(c *gin.Context) {
+	userID := h.getUserID(c)
+	keyName := c.PostForm("name")
+
+	plainKey, _, err := h.apiKeyService.CreateAPIKey(userID, keyName)
+	keys, _ := h.apiKeyService.GetAllAPIKeys()
+	name, _ := c.Get(middleware.UserNameKey)
+
+	if err != nil {
+		RenderHTML(c, http.StatusOK, "admin/api_keys.html", gin.H{
+			"title":    "APIキー管理",
+			"apiKeys":  keys,
+			"error":    err.Error(),
+			"isAdmin":  true,
+			"userName": name,
+		})
+		return
+	}
+
+	RenderHTML(c, http.StatusOK, "admin/api_keys.html", gin.H{
+		"title":      "APIキー管理",
+		"apiKeys":    keys,
+		"newKey":     plainKey,
+		"newKeyName": keyName,
+		"isAdmin":    true,
+		"userName":   name,
+	})
+}
+
+func (h *AdminHandler) DeleteAPIKey(c *gin.Context) {
+	id, err := strconv.ParseUint(c.Param("id"), 10, 32)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "無効なAPIキーID"})
+		return
+	}
+
+	err = h.apiKeyService.DeleteAPIKey(uint(id))
+	if err != nil {
+		keys, _ := h.apiKeyService.GetAllAPIKeys()
+		name, _ := c.Get(middleware.UserNameKey)
+
+		RenderHTML(c, http.StatusOK, "admin/api_keys.html", gin.H{
+			"title":    "APIキー管理",
+			"apiKeys":  keys,
+			"error":    err.Error(),
+			"isAdmin":  true,
+			"userName": name,
+		})
+		return
+	}
+
+	c.Redirect(http.StatusFound, "/admin/api-keys")
+}
+