package main

import (
	//"fmt"
	"strconv"

	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/app"
	"fyne.io/fyne/v2/container"
	"fyne.io/fyne/v2/layout"
	"fyne.io/fyne/v2/widget"
)

func tableView(w fyne.Window, category string) {
    items := loadCategory(category)

    table := widget.NewTableWithHeaders(
        func() (int, int) {
            return len(items), 4
        },
        func() fyne.CanvasObject {
            return widget.NewLabel("uhh, something went wrong")
        },
        func(id widget.TableCellID, cell fyne.CanvasObject) {
            label := cell.(*widget.Label)
            switch id.Col {
                case 0:
                    label.SetText(items[id.Row].name)
                case 1:
                    label.SetText(strconv.FormatFloat(items[id.Row].price, 'f', 2, 64) + " " + items[id.Row].currency)
                case 2:
                    label.SetText(items[id.Row].seller)
                case 3:
                    label.SetText(items[id.Row].purchase_date)
            }
        },
    )
    table.SetColumnWidth(0, 100)
    table.SetColumnWidth(1, 100)
    table.SetColumnWidth(2, 100)
    table.SetColumnWidth(3, 100)

    /*
    headers := []string{"Name", "Price", "Seller", "Purchase Date"}
    for i, header := range headers {
        fmt.Printf("i: %d\nheader: %s", i, header)
        table.UpdateHeader(widget.TableCellID{Row: -1, Col: i},
            widget.NewLabel(header))
    }
    */

    w.SetContent(table)
}

func mainMenu(w fyne.Window) {
    musicButton := widget.NewButton("Music", func() {tableView(w, "music")})
    groceriesButton := widget.NewButton("Groceries", func() {tableView(w, "groceries")})
    recurringButton := widget.NewButton("Recurring", func() {tableView(w, "recurring")})
    otherButton := widget.NewButton("Other", func() {tableView(w, "other")})

    content := container.New(
        layout.NewVBoxLayout(), 
        layout.NewSpacer(), 
        musicButton,
        groceriesButton,
        recurringButton,
        otherButton,
        layout.NewSpacer(),
    )

    w.SetContent(container.New(
        layout.NewHBoxLayout(),
        layout.NewSpacer(),
        content,
        layout.NewSpacer(),
    ))
}

func main() {
    a := app.New()
    w := a.NewWindow("Hello World")

    mainMenu(w)
    
    
    w.ShowAndRun()
}