implement graphQL and init postgres

2025-07-06 19:19:36 +02:00
parent 016728532c
commit 26a0d33592
25 changed files with 1713 additions and 314 deletions
--- a/local/graphql/handler/handler.go
+++ b/local/graphql/handler/handler.go
@@ -0,0 +1,421 @@
+package handler
+
+import (
+	"context"
+	"omega-server/local/model"
+	"omega-server/local/service"
+	"strings"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+// GraphQLHandler handles GraphQL requests
+type GraphQLHandler struct {
+	membershipService *service.MembershipService
+}
+
+// NewGraphQLHandler creates a new GraphQL handler
+func NewGraphQLHandler(membershipService *service.MembershipService) *GraphQLHandler {
+	return &GraphQLHandler{
+		membershipService: membershipService,
+	}
+}
+
+// GraphQLRequest represents a GraphQL request
+type GraphQLRequest struct {
+	Query     string                 `json:"query"`
+	Variables map[string]interface{} `json:"variables"`
+}
+
+// GraphQLResponse represents a GraphQL response
+type GraphQLResponse struct {
+	Data   interface{}    `json:"data,omitempty"`
+	Errors []GraphQLError `json:"errors,omitempty"`
+}
+
+// GraphQLError represents a GraphQL error
+type GraphQLError struct {
+	Message string   `json:"message"`
+	Path    []string `json:"path,omitempty"`
+}
+
+// Handle processes GraphQL requests
+func (h *GraphQLHandler) Handle(c *fiber.Ctx) error {
+	var req GraphQLRequest
+	if err := c.BodyParser(&req); err != nil {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Invalid request body"}},
+		})
+	}
+
+	// Basic query parsing and handling
+	ctx := c.UserContext()
+
+	// Simple query routing based on query string
+	query := strings.TrimSpace(req.Query)
+
+	switch {
+	case strings.Contains(query, "mutation") && strings.Contains(query, "login"):
+		return h.handleLogin(c, ctx, req)
+	case strings.Contains(query, "mutation") && strings.Contains(query, "createUser"):
+		return h.handleCreateUser(c, ctx, req)
+	case strings.Contains(query, "mutation") && strings.Contains(query, "createProject"):
+		return h.handleCreateProject(c, ctx, req)
+	case strings.Contains(query, "mutation") && strings.Contains(query, "createTask"):
+		return h.handleCreateTask(c, ctx, req)
+	case strings.Contains(query, "query") && strings.Contains(query, "me"):
+		return h.handleMe(c, ctx, req)
+	case strings.Contains(query, "query") && strings.Contains(query, "users"):
+		return h.handleUsers(c, ctx, req)
+	case strings.Contains(query, "query") && strings.Contains(query, "projects"):
+		return h.handleProjects(c, ctx, req)
+	case strings.Contains(query, "query") && strings.Contains(query, "tasks"):
+		return h.handleTasks(c, ctx, req)
+	default:
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Query not supported"}},
+		})
+	}
+}
+
+// handleLogin handles login mutations
+func (h *GraphQLHandler) handleLogin(c *fiber.Ctx, ctx context.Context, req GraphQLRequest) error {
+	// Extract variables
+	email, ok := req.Variables["email"].(string)
+	if !ok {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Email is required"}},
+		})
+	}
+
+	password, ok := req.Variables["password"].(string)
+	if !ok {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Password is required"}},
+		})
+	}
+
+	// Call service
+	token, err := h.membershipService.Login(ctx, email, password)
+	if err != nil {
+		return c.Status(401).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Invalid credentials"}},
+		})
+	}
+
+	// Mock user data for now
+	userData := map[string]interface{}{
+		"id":        "1",
+		"email":     email,
+		"fullName":  "User",
+		"createdAt": "2024-01-01T00:00:00Z",
+		"updatedAt": "2024-01-01T00:00:00Z",
+	}
+
+	response := map[string]interface{}{
+		"login": map[string]interface{}{
+			"token": token,
+			"user":  userData,
+		},
+	}
+
+	return c.JSON(GraphQLResponse{Data: response})
+}
+
+// handleCreateUser handles user creation mutations
+func (h *GraphQLHandler) handleCreateUser(c *fiber.Ctx, ctx context.Context, req GraphQLRequest) error {
+	// Extract variables
+	email, ok := req.Variables["email"].(string)
+	if !ok {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Email is required"}},
+		})
+	}
+
+	password, ok := req.Variables["password"].(string)
+	if !ok {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Password is required"}},
+		})
+	}
+
+	fullName, ok := req.Variables["fullName"].(string)
+	if !ok {
+		fullName = ""
+	}
+
+	// Create domain model
+	user := &model.User{
+		Email:    email,
+		FullName: fullName,
+	}
+
+	if err := user.SetPassword(password); err != nil {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: err.Error()}},
+		})
+	}
+
+	// Call service
+	createdUser, err := h.membershipService.CreateUser(ctx, user, []string{"user"})
+	if err != nil {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: err.Error()}},
+		})
+	}
+
+	// Convert user to response format
+	userData := map[string]interface{}{
+		"id":        createdUser.ID,
+		"email":     createdUser.Email,
+		"fullName":  createdUser.FullName,
+		"createdAt": createdUser.CreatedAt.Format("2006-01-02T15:04:05Z07:00"),
+		"updatedAt": createdUser.UpdatedAt.Format("2006-01-02T15:04:05Z07:00"),
+	}
+
+	response := map[string]interface{}{
+		"createUser": userData,
+	}
+
+	return c.JSON(GraphQLResponse{Data: response})
+}
+
+// handleMe handles me queries
+func (h *GraphQLHandler) handleMe(c *fiber.Ctx, ctx context.Context, req GraphQLRequest) error {
+	// This would typically extract user ID from JWT token
+	// For now, return mock data
+	userData := map[string]interface{}{
+		"id":        "1",
+		"email":     "admin@example.com",
+		"fullName":  "System Administrator",
+		"createdAt": "2024-01-01T00:00:00Z",
+		"updatedAt": "2024-01-01T00:00:00Z",
+	}
+
+	response := map[string]interface{}{
+		"me": userData,
+	}
+
+	return c.JSON(GraphQLResponse{Data: response})
+}
+
+// handleUsers handles users queries
+func (h *GraphQLHandler) handleUsers(c *fiber.Ctx, ctx context.Context, req GraphQLRequest) error {
+	// Call service
+	users, err := h.membershipService.ListUsers(ctx)
+	if err != nil {
+		return c.Status(500).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Failed to fetch users"}},
+		})
+	}
+
+	// Convert users to response format
+	usersData := make([]map[string]interface{}, len(users))
+	for i, user := range users {
+		usersData[i] = map[string]interface{}{
+			"id":        user.ID,
+			"email":     user.Email,
+			"fullName":  user.FullName,
+			"createdAt": user.CreatedAt.Format("2006-01-02T15:04:05Z07:00"),
+			"updatedAt": user.UpdatedAt.Format("2006-01-02T15:04:05Z07:00"),
+		}
+	}
+
+	response := map[string]interface{}{
+		"users": usersData,
+	}
+
+	return c.JSON(GraphQLResponse{Data: response})
+}
+
+// handleCreateProject handles project creation mutations
+func (h *GraphQLHandler) handleCreateProject(c *fiber.Ctx, ctx context.Context, req GraphQLRequest) error {
+	// Extract variables
+	name, ok := req.Variables["name"].(string)
+	if !ok {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Name is required"}},
+		})
+	}
+
+	ownerId, ok := req.Variables["ownerId"].(string)
+	if !ok {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Owner ID is required"}},
+		})
+	}
+
+	description, _ := req.Variables["description"].(string)
+
+	// Mock project data for now
+	projectData := map[string]interface{}{
+		"id":          "mock-project-id",
+		"name":        name,
+		"description": description,
+		"ownerId":     ownerId,
+		"createdAt":   "2024-01-01T00:00:00Z",
+		"updatedAt":   "2024-01-01T00:00:00Z",
+	}
+
+	response := map[string]interface{}{
+		"createProject": projectData,
+	}
+
+	return c.JSON(GraphQLResponse{Data: response})
+}
+
+// handleCreateTask handles task creation mutations
+func (h *GraphQLHandler) handleCreateTask(c *fiber.Ctx, ctx context.Context, req GraphQLRequest) error {
+	// Extract variables
+	title, ok := req.Variables["title"].(string)
+	if !ok {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Title is required"}},
+		})
+	}
+
+	projectId, ok := req.Variables["projectId"].(string)
+	if !ok {
+		return c.Status(400).JSON(GraphQLResponse{
+			Errors: []GraphQLError{{Message: "Project ID is required"}},
+		})
+	}
+
+	description, _ := req.Variables["description"].(string)
+	status, _ := req.Variables["status"].(string)
+	if status == "" {
+		status = "todo"
+	}
+	priority, _ := req.Variables["priority"].(string)
+	if priority == "" {
+		priority = "medium"
+	}
+
+	// Mock task data for now
+	taskData := map[string]interface{}{
+		"id":          "mock-task-id",
+		"title":       title,
+		"description": description,
+		"status":      status,
+		"priority":    priority,
+		"projectId":   projectId,
+		"createdAt":   "2024-01-01T00:00:00Z",
+		"updatedAt":   "2024-01-01T00:00:00Z",
+	}
+
+	response := map[string]interface{}{
+		"createTask": taskData,
+	}
+
+	return c.JSON(GraphQLResponse{Data: response})
+}
+
+// handleProjects handles projects queries
+func (h *GraphQLHandler) handleProjects(c *fiber.Ctx, ctx context.Context, req GraphQLRequest) error {
+	// Mock empty projects list for now
+	response := map[string]interface{}{
+		"projects": []interface{}{},
+	}
+
+	return c.JSON(GraphQLResponse{Data: response})
+}
+
+// handleTasks handles tasks queries
+func (h *GraphQLHandler) handleTasks(c *fiber.Ctx, ctx context.Context, req GraphQLRequest) error {
+	// Mock empty tasks list for now
+	response := map[string]interface{}{
+		"tasks": []interface{}{},
+	}
+
+	return c.JSON(GraphQLResponse{Data: response})
+}
+
+// GetSchema returns the GraphQL schema
+func (h *GraphQLHandler) GetSchema() string {
+	return `
+# Core Types
+type User {
+  id: String!
+  email: String!
+  fullName: String
+  createdAt: String!
+  updatedAt: String!
+}
+
+type Project {
+  id: String!
+  name: String!
+  description: String
+  ownerId: String!
+  createdAt: String!
+  updatedAt: String!
+}
+
+type Task {
+  id: String!
+  title: String!
+  description: String
+  status: String!
+  priority: String!
+  projectId: String!
+  createdAt: String!
+  updatedAt: String!
+}
+
+# Input Types
+input LoginInput {
+  email: String!
+  password: String!
+}
+
+input UserCreateInput {
+  email: String!
+  fullName: String!
+  password: String!
+}
+
+input ProjectCreateInput {
+  name: String!
+  description: String
+  ownerId: String!
+}
+
+input TaskCreateInput {
+  title: String!
+  description: String
+  status: String
+  priority: String
+  projectId: String!
+}
+
+# Response Types
+type AuthResponse {
+  token: String!
+  user: User!
+}
+
+type MessageResponse {
+  message: String!
+  success: Boolean!
+}
+
+# Queries
+type Query {
+  me: User!
+  users: [User!]!
+  user(id: String!): User
+  projects: [Project!]!
+  project(id: String!): Project
+  tasks(projectId: String): [Task!]!
+  task(id: String!): Task
+}
+
+# Mutations
+type Mutation {
+  login(input: LoginInput!): AuthResponse!
+  createUser(input: UserCreateInput!): User!
+  createProject(input: ProjectCreateInput!): Project!
+  createTask(input: TaskCreateInput!): Task!
+}
+`
+}