package no.ntnu.idatt1002.demo.controller;

import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Node;
import javafx.scene.control.*;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Modality;
import javafx.stage.Stage;
import no.ntnu.idatt1002.demo.data.Budget.BudgetItem;
import no.ntnu.idatt1002.demo.data.Budget.GeneralBudget;
import no.ntnu.idatt1002.demo.data.Economics.Expense;
import no.ntnu.idatt1002.demo.data.Economics.ExpenseCategory;


import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;

enum DialogMode{
    ADD, EDIT, DELETE
}

public class BudgetController {

    private DialogMode dialogMode;
    private List<BudgetItem> listOfBudgetItems = new ArrayList<>();
    private GeneralBudget general = new GeneralBudget(31, listOfBudgetItems, 200);


    @FXML
    private Button addBudget;

    @FXML
    private Button editBudget;

    @FXML
    private TableColumn<BudgetItem, Double> amountColumn;

    @FXML
    private TableView<BudgetItem> budgetTableView = new TableView<>();

    @FXML
    private TableColumn<BudgetItem, ExpenseCategory> categoryColumn;

    @FXML
    private TextArea daysVariable;

    @FXML
    private TableColumn<BudgetItem, String> descriptionColumn;

    @FXML
    private TextArea monthVariable;

    @FXML
    private TableColumn<?, ?> percentageColumn;

    @FXML
    private TextArea totalBudgetAmount;

    @FXML
    private ObservableList<BudgetItem> budgetList;



    public void initialize() throws IOException {
        budgetList = FXCollections.observableArrayList(listOfBudgetItems);
        budgetTableView.setItems(budgetList);

        categoryColumn.setCellValueFactory(new PropertyValueFactory<BudgetItem, ExpenseCategory>("budgetCategory"));
        amountColumn.setCellValueFactory(new PropertyValueFactory<BudgetItem, Double>("budgetAmount"));
        descriptionColumn.setCellValueFactory(new PropertyValueFactory<BudgetItem, String>("budgetDescription"));
    }
    @FXML
    public void switchAddBudget(javafx.event.ActionEvent event) throws IOException {
        BudgetItem item = null;
        String dialogTitle = "";
        FXMLLoader loader = new FXMLLoader(SceneController.class.getResource("/view/AddBudget.fxml"));
        Dialog<BudgetItem> dialog = new Dialog<>();
        dialog.initModality(Modality.APPLICATION_MODAL);

        try{
            dialog.getDialogPane().setContent(loader.load());
        } catch(IOException e) {
            e.printStackTrace();
        }

        AddBudgetController budgetController = loader.getController();

        if(event.getSource().equals(addBudget)){
            dialogMode = DialogMode.ADD;
            dialogTitle = "New Budget";

        }
        else if (event.getSource().equals(editBudget)) {
            dialogMode = DialogMode.EDIT;
            dialogTitle = "Edit expense";
            item = budgetTableView.getSelectionModel().getSelectedItem();
            budgetController.setBudget(item);
        } else {
            return;
        }

        dialog.setTitle(dialogTitle);
        dialog.showAndWait();

        item = budgetController.getNewBudgetItem();
        if(item != null && dialogMode == DialogMode.ADD){
            listOfBudgetItems.add(item);
        }
        refreshObservableList();
    }

    @FXML
    public void closeButton(javafx.event.ActionEvent actionEvent) {
        final Node source = (Node) actionEvent.getSource();
        final Stage stage = (Stage) source.getScene().getWindow();
        stage.close();
    }

    @FXML
    public void deleteButton(ActionEvent event) {
        BudgetItem item = budgetTableView.getSelectionModel().getSelectedItem();
        if (item == null) {
            return;
        }
        Optional<ButtonType> isConfirmed = showConfirmationDialog();
        if (isConfirmed.isPresent() && isConfirmed.get() == ButtonType.OK) {
            general.deleteItemFromBudget(item.getBudgetCategory());
            refreshObservableList();
        }
    }

    private Optional<ButtonType> showConfirmationDialog() {
        Alert alert = new Alert(Alert.AlertType.CONFIRMATION);
        alert.setTitle("Confirm Delete");
        alert.setHeaderText("Delete Confirmation");
        alert.setContentText("Are you sure you would like to delete the selected entry?");

        return alert.showAndWait();
    }


    protected void refreshObservableList(){
        budgetTableView.setItems(budgetList);
        this.budgetList.setAll(listOfBudgetItems);
    }

}