#include "dbal/adapters/adapter.hpp"
#include <string>
#include <vector>

namespace dbal {
namespace adapters {
namespace sqlite {

class SQLiteAdapter : public Adapter {
public:
    explicit SQLiteAdapter(const std::string& db_path) : db_path_(db_path) {}
    
    ~SQLiteAdapter() override {
        close();
    }
    
    Result<User> createUser(const CreateUserInput& input) override {
        // Stub implementation
        User user;
        user.id = "user_" + input.username;
        user.username = input.username;
        user.email = input.email;
        user.role = input.role;
        user.created_at = std::chrono::system_clock::now();
        user.updated_at = user.created_at;
        
        return Result<User>(user);
    }
    
    Result<User> getUser(const std::string& id) override {
        return Error::notFound("User not found: " + id);
    }
    
    Result<User> updateUser(const std::string& id, const UpdateUserInput& input) override {
        return Error::notFound("User not found: " + id);
    }
    
    Result<bool> deleteUser(const std::string& id) override {
        return Result<bool>(true);
    }
    
    Result<std::vector<User>> listUsers(const ListOptions& options) override {
        std::vector<User> users;
        return Result<std::vector<User>>(users);
    }
    
    Result<PageView> createPage(const CreatePageInput& input) override {
        PageView page;
        page.id = "page_" + input.slug;
        page.slug = input.slug;
        page.title = input.title;
        page.description = input.description;
        page.level = input.level;
        page.layout = input.layout;
        page.is_active = input.is_active;
        page.created_at = std::chrono::system_clock::now();
        page.updated_at = page.created_at;
        
        return Result<PageView>(page);
    }
    
    Result<PageView> getPage(const std::string& id) override {
        return Error::notFound("Page not found: " + id);
    }
    
    Result<PageView> updatePage(const std::string& id, const UpdatePageInput& input) override {
        return Error::notFound("Page not found: " + id);
    }
    
    Result<bool> deletePage(const std::string& id) override {
        return Result<bool>(true);
    }
    
    Result<std::vector<PageView>> listPages(const ListOptions& options) override {
        std::vector<PageView> pages;
        return Result<std::vector<PageView>>(pages);
    }

    Result<Workflow> createWorkflow(const CreateWorkflowInput& input) override {
        Workflow workflow;
        workflow.id = "workflow_" + input.name;
        workflow.name = input.name;
        workflow.description = input.description;
        workflow.trigger = input.trigger;
        workflow.trigger_config = input.trigger_config;
        workflow.steps = input.steps;
        workflow.is_active = input.is_active;
        workflow.created_by = input.created_by;
        workflow.created_at = std::chrono::system_clock::now();
        workflow.updated_at = workflow.created_at;

        return Result<Workflow>(workflow);
    }

    Result<Workflow> getWorkflow(const std::string& id) override {
        return Error::notFound("Workflow not found: " + id);
    }

    Result<Workflow> updateWorkflow(const std::string& id, const UpdateWorkflowInput& input) override {
        return Error::notFound("Workflow not found: " + id);
    }

    Result<bool> deleteWorkflow(const std::string& id) override {
        return Result<bool>(true);
    }

    Result<std::vector<Workflow>> listWorkflows(const ListOptions& options) override {
        std::vector<Workflow> workflows;
        return Result<std::vector<Workflow>>(workflows);
    }

    Result<Session> createSession(const CreateSessionInput& input) override {
        Session session;
        session.id = "session_" + input.user_id;
        session.user_id = input.user_id;
        session.token = input.token;
        session.expires_at = input.expires_at;
        session.created_at = std::chrono::system_clock::now();
        session.last_activity = session.created_at;
        return Result<Session>(session);
    }

    Result<Session> getSession(const std::string& id) override {
        return Error::notFound("Session not found: " + id);
    }

    Result<Session> updateSession(const std::string& id, const UpdateSessionInput& input) override {
        return Error::notFound("Session not found: " + id);
    }

    Result<bool> deleteSession(const std::string& id) override {
        return Result<bool>(true);
    }

    Result<std::vector<Session>> listSessions(const ListOptions& options) override {
        std::vector<Session> sessions;
        return Result<std::vector<Session>>(sessions);
    }

    Result<LuaScript> createLuaScript(const CreateLuaScriptInput& input) override {
        LuaScript script;
        script.id = "lua_" + input.name;
        script.name = input.name;
        script.description = input.description;
        script.code = input.code;
        script.is_sandboxed = input.is_sandboxed;
        script.allowed_globals = input.allowed_globals;
        script.timeout_ms = input.timeout_ms;
        script.created_by = input.created_by;
        script.created_at = std::chrono::system_clock::now();
        script.updated_at = script.created_at;
        return Result<LuaScript>(script);
    }

    Result<LuaScript> getLuaScript(const std::string& id) override {
        return Error::notFound("Lua script not found: " + id);
    }

    Result<LuaScript> updateLuaScript(const std::string& id, const UpdateLuaScriptInput& input) override {
        return Error::notFound("Lua script not found: " + id);
    }

    Result<bool> deleteLuaScript(const std::string& id) override {
        return Result<bool>(true);
    }

    Result<std::vector<LuaScript>> listLuaScripts(const ListOptions& options) override {
        std::vector<LuaScript> scripts;
        return Result<std::vector<LuaScript>>(scripts);
    }

    Result<Package> createPackage(const CreatePackageInput& input) override {
        Package package;
        package.id = "package_" + input.name;
        package.name = input.name;
        package.version = input.version;
        package.description = input.description;
        package.author = input.author;
        package.manifest = input.manifest;
        package.is_installed = input.is_installed;
        package.installed_at = input.installed_at;
        package.installed_by = input.installed_by;
        package.created_at = std::chrono::system_clock::now();
        package.updated_at = package.created_at;
        return Result<Package>(package);
    }

    Result<Package> getPackage(const std::string& id) override {
        return Error::notFound("Package not found: " + id);
    }

    Result<Package> updatePackage(const std::string& id, const UpdatePackageInput& input) override {
        return Error::notFound("Package not found: " + id);
    }

    Result<bool> deletePackage(const std::string& id) override {
        return Result<bool>(true);
    }

    Result<std::vector<Package>> listPackages(const ListOptions& options) override {
        std::vector<Package> packages;
        return Result<std::vector<Package>>(packages);
    }
    
    void close() override {
        // Cleanup
    }
    
private:
    std::string db_path_;
};

}
}
}
