using UnityEditor;
using UnityEngine;
using UnityEngine.UIElements;

namespace AlicizaX.PackageManager.Editor
{
    internal class PackageBottomStateBar : VisualElement
    {
        private readonly FrameworkPackageManagerWindow window;
        private readonly Button refreshButton;
        private readonly Button updateAllButton;
        private readonly VisualElement spacer;

        public PackageBottomStateBar(FrameworkPackageManagerWindow window)
        {
            this.window = window;

            style.flexDirection = FlexDirection.Row;
            style.flexShrink = 1;
            style.justifyContent = Justify.FlexEnd;
            style.alignItems = Align.Center;
            style.height = Length.Percent(5);
            style.backgroundColor = new Color(0.2509804f, 0.2509804f, 0.2509804f);
            style.borderTopWidth = 1;
            style.paddingLeft = 4;
            style.paddingRight = 4;

            spacer = new VisualElement();
            spacer.style.flexGrow = 1;
            Add(spacer);

            refreshButton = CreateIconButton("btnRefresh", "d_Refresh", "Refresh", OnRefreshClicked);
            Add(refreshButton);

            updateAllButton = CreateIconButton("btnUpdateAll", "Update-Available", "Update All", OnUpdateAllClicked);
            updateAllButton.style.marginLeft = 6;
            Add(updateAllButton);
        }

        public void SetStateText(string text)
        {
        }

        private static Button CreateIconButton(string name, string iconName, string tooltip, System.Action clickAction)
        {
            var button = new Button(clickAction)
            {
                name = name,
                tooltip = tooltip
            };

            button.style.width = 26;
            button.style.height = 22;
            button.style.paddingLeft = 0;
            button.style.paddingRight = 0;
            button.style.paddingTop = 0;
            button.style.paddingBottom = 0;
            button.style.unityTextAlign = TextAnchor.MiddleCenter;

            var icon = new Image
            {
                image = EditorGUIUtility.IconContent(iconName).image
            };
            icon.style.width = 16;
            icon.style.height = 16;
            icon.style.alignSelf = Align.Center;
            button.Add(icon);

            return button;
        }

        private void OnRefreshClicked()
        {
            if (window.IsBusy())
            {
                return;
            }

            window.Refresh();
        }

        private void OnUpdateAllClicked()
        {
            UpdateAllPackageHelper.UpdatePackages(window);
        }
    }
}