#include "uiContainer.h"
#include "../game.h"
#include "button.h"
#include "raylib.h"
#include "stdlib.h"
#include "stdio.h"
#include "screenIDs.h"

static UiContainer * UiContainerInitEmptyUiContainer(){
    UiContainer *uiContainer = malloc(sizeof(UiContainer));

    uiContainer->buttonCounter = 0;
    uiContainer->selectableCounter = 0;

    return uiContainer;
}

// Only for use in UiContainer
static UiContainer * UiContainerInitPauseUiContainer(){
    UiContainer *uiContainer = malloc(sizeof(UiContainer));

    Texture2D textures[4] = {   LoadTexture("assets/button.png"),                     //DEFAULT
                                                        LoadTexture("assets/button_hovered.png"),    //HOVERED 
                                                        LoadTexture("assets/button_pressed.png"),   //PRESSED
                                                        LoadTexture("assets/button_pressed.png")}; //RELEASED
    Vector2 position = (Vector2){GetScreenWidth()/2 - textures[0].width/2, GetScreenHeight()/2 - 50};
    int buttonFontSize = 36;

    Button *continuebutton = ButtonInitButton(textures, &position, "Continue", 9, buttonFontSize, BUTTON_ID_CONTINUE);
    uiContainer->buttons[0] = continuebutton;
    uiContainer->buttonCounter = 1;

    position.y += 250;

    Button *exitButton = ButtonInitButton(textures, &position, "EXIT", 5, buttonFontSize, BUTTON_ID_EXIT);
    uiContainer->buttons[1] = exitButton;
    uiContainer->buttonCounter = 2;

    // WICHTIG, auch wenn der UiContainer gar keine selectables hat!
    uiContainer->selectableCounter = 0;

    // Methode funktioniert wieso auch immer auch ohne dieses return. C returned Implizit odder was O_o
    return uiContainer;
}

// Only for use in UiContainer
static UiContainer * UiContainerInitMainMenuUiContainer(){
    UiContainer *uiContainer = malloc(sizeof(UiContainer));

    Texture2D textures[4] = {   LoadTexture("assets/button.png"),                     //DEFAULT
                                                        LoadTexture("assets/button_hovered.png"),    //HOVERED 
                                                        LoadTexture("assets/button_pressed.png"),   //PRESSED
                                                        LoadTexture("assets/button_pressed.png")}; //RELEASED
    Vector2 position = (Vector2){GetScreenWidth()/2 - textures[0].width/2, GetScreenHeight()/2 - 50};
    int buttonFontSize = 36;

    Button *continuebutton = ButtonInitButton(textures, &position, "Start Game", 11, buttonFontSize, BUTTON_ID_START_GAME);
    uiContainer->buttons[0] = continuebutton;
    uiContainer->buttonCounter = 1;

    // WICHTIG, auch wenn der UiContainer gar keine selectables hat!
    uiContainer->selectableCounter = 0;

    position.y += 250;

    Button *exitButton = ButtonInitButton(textures, &position, "EXIT", 5, buttonFontSize, BUTTON_ID_EXIT);
    uiContainer->buttons[1] = exitButton;
    uiContainer->buttonCounter = 2;

    // Methode funktioniert wieso auch immer auch ohne dieses return. GCC returned Implizit odder was O_o
    return uiContainer;
}

// Only for use in UiContainer
static UiContainer * UiContainerInitGameUiContainer(){
    UiContainer *uiContainer = malloc(sizeof(UiContainer));

    uiContainer->buttonCounter = 0;

    Texture2D textures[3] = {   LoadTexture("assets/selectable.png"),                     //DEFAULT
                                                        LoadTexture("assets/selectable.png"),    //HOVERED 
                                                        LoadTexture("assets/selectable.png")       //SELECTED
                                                        };

    Texture2D backgroundTextures[3] = {   LoadTexture("assets/selectable_background.png"),                     //DEFAULT
                                                        LoadTexture("assets/selectable_background_hovered.png"),    //HOVERED 
                                                        LoadTexture("assets/selectable_background_selected.png")       //SELECTED
                                                        };
    Vector2  position = (Vector2){20, 300};
    int showDescription = 1;
    int hasBackground = 1;
    int groupOne = 0;
    int groupTwo = 1;
    int fontSize = 16;
    Selectable *selectable1 = SelectableInit(textures, backgroundTextures, hasBackground , &position, "Building", 
                                                                                        showDescription,  9, fontSize, SELECTABLE_ID_TEST, groupOne);
    position.y += 100;
    Selectable *selectable2 = SelectableInit(textures, backgroundTextures, hasBackground,&position, "Building2", 
                                                                                        showDescription, 10, fontSize, SELECTABLE_ID_TEST, groupOne);
    position.y += 100;
    Selectable *selectable3 = SelectableInit(textures, backgroundTextures, hasBackground,&position, "Building3", 
                                                                                        showDescription, 10, fontSize, SELECTABLE_ID_TEST, groupOne);
    position.y += 100;
    Selectable *selectable4 = SelectableInit(textures, backgroundTextures, hasBackground,&position, "Building4", 
                                                                                        showDescription, 10, fontSize, SELECTABLE_ID_TEST, groupTwo);
    position.x += 100;
    Selectable *selectable5 = SelectableInit(textures, backgroundTextures, hasBackground,&position, "Building5", 
                                                                                        showDescription, 10, fontSize, SELECTABLE_ID_TEST, groupTwo);
    position.x += 100;
    Selectable *selectable6 = SelectableInit(textures, backgroundTextures, hasBackground,&position, "Building6", 
                                                                                        showDescription, 10, fontSize, SELECTABLE_ID_TEST, groupTwo);

    int selectableCounter = 0;

    uiContainer->selectables[selectableCounter++] = selectable1;
    uiContainer->selectables[selectableCounter++] = selectable2;
    uiContainer->selectables[selectableCounter++] = selectable3;
    uiContainer->selectables[selectableCounter++] = selectable4;
    uiContainer->selectables[selectableCounter++] = selectable5;
    uiContainer->selectables[selectableCounter++] = selectable6;

    uiContainer->selectableCounter = selectableCounter;

    return uiContainer;
}

UiContainer * UiContainerInitUiContainerForScreenID(int id){
    switch(id){
        case SCREEN_MAINMENU:
            return UiContainerInitMainMenuUiContainer();
        case SCREEN_GAME:
            return UiContainerInitGameUiContainer();
        case SCREEN_PAUSE:
            return UiContainerInitPauseUiContainer();
        default:
            printf("WARNING: Creating UiContainer for Screen ID %d (not implemented)\n", id);
            return UiContainerInitEmptyUiContainer();
    }
}

// Only for use in UiContainer, should not be used on their own
static void UpdateButtons(Game *game, Button **buttons, int buttonCounter){
    int i = 0;
    for(i=0 ; i < buttonCounter; i++){
        ButtonUpdateButtonState(buttons[i]);
        if(buttons[i]->state == BUTTON_STATE_RELEASED){
            ButtonExecuteButton(buttons[i], game);
        }
    }
}

// Only for use in UiContainer, should not be used on their own
static void UpdateSelectables(Game *game, Selectable **selectables, int selectableCounter){
    int i = 0;
    for(i=0 ; i < selectableCounter; i++){
        int setState = SelectableUpdateSelectableState(selectables[i]);
        // Unselecting every selectable if one is selected
        if(setState == SELECTABLE_STATE_SELECTED){
            int j;
            for(j=0 ; j < selectableCounter; j++){ 
                if(i != j && selectables[j]->groupID == selectables[i]->groupID){
                    SelectableUnselectSelectable(selectables[j]);
                }
            }
        }
        if(selectables[i]->state == SELECTABLE_STATE_SELECTED){
            SelectableExecuteSelectable(selectables[i], game);
        }
    }
}

// Updated alle Buttons und Selectables und führt gegebenenfalls deren Code aus
void UiContainerUpdateUiContainer(UiContainer *uiContainer, Game *game){
    UpdateButtons(game, uiContainer->buttons, uiContainer->buttonCounter);
    UpdateSelectables(game, uiContainer->selectables, uiContainer->selectableCounter);
}

// Drawed alle Buttons und Selectables
void UiContainerDrawUiContainer(UiContainer *uiContainer){
    if(uiContainer == 0) return;
    int i = 0;
    // Funktion kann genauso wie update auch noch aufgeteilt werden, aktuell aber noch nicht notwendig
    for(i=0 ; i < uiContainer->buttonCounter; i++){
        ButtonDrawButton(uiContainer->buttons[i]);
    }
    for(i=0 ; i < uiContainer->selectableCounter; i++){
        SelectableDrawSelectable(uiContainer->selectables[i]);
    }
}