Mediator_Users.c

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#include "Mediator_UserList.h"
#include "Mediator_Users.h"
 
static UserList _users = { 0 };
 
//-----------------------------------------------------------------------------
 
// Users_Clear()
void Users_Clear(void)
{
    UserList_Clear(&_users);
}
 
// Users_AddUser()
UserErrorCode Users_AddUser(const char* userName)
{
    UserErrorCode errorCode = UserErrorCode_Null_Argument;
 
    if (userName != NULL)
    {
        errorCode = UserErrorCode_No_Memory;
        User* newUser = User_Create(userName);
        if (newUser != NULL)
        {
            if (UserList_AddUser(&_users, newUser))
            {
                errorCode = UserErrorCode_No_Error;
            }
        }
    }
 
    return errorCode;
}
 
// Users_RemoveUser()
UserErrorCode Users_RemoveUser(const char* userName)
{
    UserErrorCode errorCode = UserErrorCode_Null_Argument;
 
    if (userName != NULL)
    {
        errorCode = UserErrorCode_User_Does_Not_Exist;
        int foundIndex = UserList_FindUser(&_users, userName);
        if (foundIndex != -1)
        {
            UserList_RemoveUser(&_users, foundIndex);
            errorCode = UserErrorCode_No_Error;
        }
    }
 
    return errorCode;
}
 
// Users_FindUser()
User* Users_FindUser(const char* userName)
{
    User* user = NULL;
 
    if (userName != NULL)
    {
        int foundIndex = UserList_FindUser(&_users, userName);
        if (foundIndex != -1)
        {
            user = _users.users[foundIndex];
        }
    }
 
    return user;
}
 
 
// Users_FindUser()
UserErrorCode Users_GetAllUsers(StringList* userNames)
{
    UserErrorCode errorCode = UserErrorCode_Null_Argument;
 
    if (userNames != NULL)
    {
        for (size_t index = 0; index < _users.users_count; index++)
        {
            User* user = _users.users[index];
            if (!StringList_AddString(userNames, user->Name))
            {
                errorCode = UserErrorCode_No_Memory;
                break;
            }
        }
    }
 
    return errorCode;
}