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aa841a710d
Enhanced C++ DBAL with solid foundation (Option 3): - In-memory data store for realistic CRUD persistence - Comprehensive validation (email, username, slug, etc.) - Conflict detection (unique usernames, emails, slugs) - Proper error handling (validation, not found, conflict) - Filtering and pagination support - 12 comprehensive test suites (30+ test cases) - All tests passing with meaningful assertions Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>
417 lines
12 KiB
C++
417 lines
12 KiB
C++
#include "dbal/client.hpp"
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#include <stdexcept>
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#include <map>
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#include <algorithm>
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#include <regex>
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namespace dbal {
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// In-memory store for mock implementation
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struct InMemoryStore {
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std::map<std::string, User> users;
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std::map<std::string, PageView> pages;
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std::map<std::string, std::string> page_slugs; // slug -> id mapping
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int user_counter = 0;
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int page_counter = 0;
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};
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static InMemoryStore& getStore() {
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static InMemoryStore store;
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return store;
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}
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// Validation helpers
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static bool isValidEmail(const std::string& email) {
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static const std::regex email_pattern(R"([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,})");
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return std::regex_match(email, email_pattern);
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}
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static bool isValidUsername(const std::string& username) {
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if (username.empty() || username.length() > 50) return false;
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static const std::regex username_pattern(R"([a-zA-Z0-9_-]+)");
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return std::regex_match(username, username_pattern);
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}
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static bool isValidSlug(const std::string& slug) {
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if (slug.empty() || slug.length() > 100) return false;
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static const std::regex slug_pattern(R"([a-z0-9-]+)");
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return std::regex_match(slug, slug_pattern);
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}
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static std::string generateId(const std::string& prefix, int counter) {
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char buffer[64];
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snprintf(buffer, sizeof(buffer), "%s_%08d", prefix.c_str(), counter);
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return std::string(buffer);
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}
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Client::Client(const ClientConfig& config) : config_(config) {
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// Validate configuration
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if (config.adapter.empty()) {
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throw std::invalid_argument("Adapter type must be specified");
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}
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if (config.database_url.empty()) {
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throw std::invalid_argument("Database URL must be specified");
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}
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}
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Client::~Client() {
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close();
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}
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Result<User> Client::createUser(const CreateUserInput& input) {
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// Validation
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if (!isValidUsername(input.username)) {
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return Error::validationError("Invalid username format (alphanumeric, underscore, hyphen only)");
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}
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if (!isValidEmail(input.email)) {
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return Error::validationError("Invalid email format");
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}
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auto& store = getStore();
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// Check for duplicate username
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for (const auto& [id, user] : store.users) {
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if (user.username == input.username) {
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return Error::conflict("Username already exists: " + input.username);
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}
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if (user.email == input.email) {
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return Error::conflict("Email already exists: " + input.email);
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}
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}
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// Create user
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User user;
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user.id = generateId("user", ++store.user_counter);
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user.username = input.username;
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user.email = input.email;
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user.role = input.role;
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user.created_at = std::chrono::system_clock::now();
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user.updated_at = user.created_at;
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store.users[user.id] = user;
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return Result<User>(user);
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}
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Result<User> Client::getUser(const std::string& id) {
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if (id.empty()) {
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return Error::validationError("User ID cannot be empty");
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}
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auto& store = getStore();
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auto it = store.users.find(id);
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if (it == store.users.end()) {
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return Error::notFound("User not found: " + id);
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}
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return Result<User>(it->second);
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}
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Result<User> Client::updateUser(const std::string& id, const UpdateUserInput& input) {
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if (id.empty()) {
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return Error::validationError("User ID cannot be empty");
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}
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auto& store = getStore();
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auto it = store.users.find(id);
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if (it == store.users.end()) {
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return Error::notFound("User not found: " + id);
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}
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User& user = it->second;
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// Validate and check conflicts
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if (input.username.has_value()) {
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if (!isValidUsername(input.username.value())) {
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return Error::validationError("Invalid username format");
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}
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// Check for username conflict
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for (const auto& [uid, u] : store.users) {
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if (uid != id && u.username == input.username.value()) {
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return Error::conflict("Username already exists: " + input.username.value());
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}
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}
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user.username = input.username.value();
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}
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if (input.email.has_value()) {
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if (!isValidEmail(input.email.value())) {
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return Error::validationError("Invalid email format");
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}
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// Check for email conflict
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for (const auto& [uid, u] : store.users) {
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if (uid != id && u.email == input.email.value()) {
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return Error::conflict("Email already exists: " + input.email.value());
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}
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}
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user.email = input.email.value();
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}
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if (input.role.has_value()) {
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user.role = input.role.value();
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}
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user.updated_at = std::chrono::system_clock::now();
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return Result<User>(user);
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}
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Result<bool> Client::deleteUser(const std::string& id) {
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if (id.empty()) {
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return Error::validationError("User ID cannot be empty");
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}
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auto& store = getStore();
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auto it = store.users.find(id);
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if (it == store.users.end()) {
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return Error::notFound("User not found: " + id);
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}
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store.users.erase(it);
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return Result<bool>(true);
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}
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Result<std::vector<User>> Client::listUsers(const ListOptions& options) {
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auto& store = getStore();
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std::vector<User> users;
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for (const auto& [id, user] : store.users) {
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// Apply filters if provided
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bool matches = true;
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if (options.filter.find("role") != options.filter.end()) {
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std::string role_str = options.filter.at("role");
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// Simple role filtering
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if (role_str == "admin" && user.role != UserRole::Admin) matches = false;
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if (role_str == "user" && user.role != UserRole::User) matches = false;
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}
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if (matches) {
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users.push_back(user);
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}
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}
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// Apply sorting
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if (options.sort.find("username") != options.sort.end()) {
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std::sort(users.begin(), users.end(), [](const User& a, const User& b) {
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return a.username < b.username;
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});
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}
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// Apply pagination
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int start = (options.page - 1) * options.limit;
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int end = std::min(start + options.limit, static_cast<int>(users.size()));
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if (start < static_cast<int>(users.size())) {
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return Result<std::vector<User>>(std::vector<User>(users.begin() + start, users.begin() + end));
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}
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return Result<std::vector<User>>(std::vector<User>());
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}
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Result<PageView> Client::createPage(const CreatePageInput& input) {
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// Validation
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if (!isValidSlug(input.slug)) {
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return Error::validationError("Invalid slug format (lowercase, alphanumeric, hyphens only)");
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}
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if (input.title.empty() || input.title.length() > 200) {
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return Error::validationError("Title must be between 1 and 200 characters");
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}
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if (input.level < 0 || input.level > 5) {
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return Error::validationError("Level must be between 0 and 5");
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}
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auto& store = getStore();
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// Check for duplicate slug
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if (store.page_slugs.find(input.slug) != store.page_slugs.end()) {
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return Error::conflict("Page with slug already exists: " + input.slug);
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}
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// Create page
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PageView page;
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page.id = generateId("page", ++store.page_counter);
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page.slug = input.slug;
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page.title = input.title;
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page.description = input.description;
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page.level = input.level;
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page.layout = input.layout;
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page.is_active = input.is_active;
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page.created_at = std::chrono::system_clock::now();
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page.updated_at = page.created_at;
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store.pages[page.id] = page;
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store.page_slugs[page.slug] = page.id;
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return Result<PageView>(page);
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}
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Result<PageView> Client::getPage(const std::string& id) {
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if (id.empty()) {
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return Error::validationError("Page ID cannot be empty");
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}
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auto& store = getStore();
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auto it = store.pages.find(id);
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if (it == store.pages.end()) {
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return Error::notFound("Page not found: " + id);
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}
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return Result<PageView>(it->second);
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}
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Result<PageView> Client::getPageBySlug(const std::string& slug) {
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if (slug.empty()) {
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return Error::validationError("Slug cannot be empty");
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}
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auto& store = getStore();
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auto it = store.page_slugs.find(slug);
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if (it == store.page_slugs.end()) {
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return Error::notFound("Page not found with slug: " + slug);
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}
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return getPage(it->second);
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}
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Result<PageView> Client::updatePage(const std::string& id, const UpdatePageInput& input) {
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if (id.empty()) {
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return Error::validationError("Page ID cannot be empty");
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}
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auto& store = getStore();
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auto it = store.pages.find(id);
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if (it == store.pages.end()) {
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return Error::notFound("Page not found: " + id);
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}
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PageView& page = it->second;
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std::string old_slug = page.slug;
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// Validate and update fields
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if (input.slug.has_value()) {
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if (!isValidSlug(input.slug.value())) {
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return Error::validationError("Invalid slug format");
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}
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// Check for slug conflict
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auto slug_it = store.page_slugs.find(input.slug.value());
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if (slug_it != store.page_slugs.end() && slug_it->second != id) {
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return Error::conflict("Slug already exists: " + input.slug.value());
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}
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// Update slug mapping
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store.page_slugs.erase(old_slug);
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store.page_slugs[input.slug.value()] = id;
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page.slug = input.slug.value();
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}
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if (input.title.has_value()) {
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if (input.title.value().empty() || input.title.value().length() > 200) {
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return Error::validationError("Title must be between 1 and 200 characters");
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}
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page.title = input.title.value();
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}
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if (input.description.has_value()) {
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page.description = input.description.value();
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}
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if (input.level.has_value()) {
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if (input.level.value() < 0 || input.level.value() > 5) {
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return Error::validationError("Level must be between 0 and 5");
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}
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page.level = input.level.value();
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}
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if (input.layout.has_value()) {
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page.layout = input.layout.value();
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}
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if (input.is_active.has_value()) {
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page.is_active = input.is_active.value();
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}
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page.updated_at = std::chrono::system_clock::now();
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return Result<PageView>(page);
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}
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Result<bool> Client::deletePage(const std::string& id) {
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if (id.empty()) {
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return Error::validationError("Page ID cannot be empty");
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}
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auto& store = getStore();
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auto it = store.pages.find(id);
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if (it == store.pages.end()) {
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return Error::notFound("Page not found: " + id);
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}
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// Remove slug mapping
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store.page_slugs.erase(it->second.slug);
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store.pages.erase(it);
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return Result<bool>(true);
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}
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Result<std::vector<PageView>> Client::listPages(const ListOptions& options) {
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auto& store = getStore();
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std::vector<PageView> pages;
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for (const auto& [id, page] : store.pages) {
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// Apply filters
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bool matches = true;
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if (options.filter.find("is_active") != options.filter.end()) {
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bool filter_active = options.filter.at("is_active") == "true";
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if (page.is_active != filter_active) matches = false;
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}
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if (options.filter.find("level") != options.filter.end()) {
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int filter_level = std::stoi(options.filter.at("level"));
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if (page.level != filter_level) matches = false;
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}
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if (matches) {
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pages.push_back(page);
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}
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}
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// Apply sorting
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if (options.sort.find("title") != options.sort.end()) {
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std::sort(pages.begin(), pages.end(), [](const PageView& a, const PageView& b) {
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return a.title < b.title;
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});
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} else if (options.sort.find("created_at") != options.sort.end()) {
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std::sort(pages.begin(), pages.end(), [](const PageView& a, const PageView& b) {
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return a.created_at < b.created_at;
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});
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}
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// Apply pagination
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int start = (options.page - 1) * options.limit;
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int end = std::min(start + options.limit, static_cast<int>(pages.size()));
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if (start < static_cast<int>(pages.size())) {
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return Result<std::vector<PageView>>(std::vector<PageView>(pages.begin() + start, pages.begin() + end));
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}
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return Result<std::vector<PageView>>(std::vector<PageView>());
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}
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void Client::close() {
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// For in-memory implementation, optionally clear store
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// auto& store = getStore();
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// store.users.clear();
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// store.pages.clear();
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// store.page_slugs.clear();
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}
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}
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