com.alicizax.unity.packagemanager/Editor/PackageManager/Window/PackageInfoView.cs

using UnityEngine;
using UnityEngine.UIElements;

namespace AlicizaX.PackageManager.Editor
{
    internal class PackageInfoView : VisualElement
    {
        private VisualElement _mainContainer;
        private VisualElement _headContainer;
        private Label _displayName;
        private Label _versionWithDate;
        private Label _authorLabel;
        private Label _packageNameLabel;
        private Label _projectDescription;
        private Label _btnLinkHtml;


        private VisualElement packageBtnContainer;


        private Button _btnUpdate;
        private Button _btnInstall;
        private Button _btnRemove;


        private RepositoryPackageData _selectRepositoryPackageData;

        public PackageInfoView()
        {
            style.flexShrink = 1;
            style.height = Length.Percent(100);

            _mainContainer = new VisualElement()
            {
                name = "MainContainer"
            };
            _mainContainer.style.flexShrink = 1;
            _mainContainer.style.height = Length.Percent(100);


            _headContainer = new VisualElement()
            {
                name = "HeadContainer"
            };
            _headContainer.style.flexShrink = 1;
            _headContainer.style.height = Length.Percent(35);
            _headContainer.style.paddingLeft = 10;
            _headContainer.style.paddingTop = 10;

            _mainContainer.Add(_headContainer);


            _displayName = new Label()
            {
                name = "DisplayName"
            };
            _displayName.style.fontSize = 19;
            _displayName.style.unityFontStyleAndWeight = FontStyle.Bold;

            _versionWithDate = new Label()
            {
                name = "VersionWithDate"
            };
            _versionWithDate.style.fontSize = 13;
            _versionWithDate.style.unityFontStyleAndWeight = FontStyle.Bold;
            _versionWithDate.style.paddingTop = 5;


            _authorLabel = new Label()
            {
                name = "AuthorLabel"
            };
            _authorLabel.style.fontSize = 12;
            _authorLabel.style.paddingTop = 5;
            _authorLabel.style.unityFontStyleAndWeight = FontStyle.Italic;

            _packageNameLabel = new Label()
            {
                name = "PackageName"
            };
            _packageNameLabel.style.fontSize = 12;
            _packageNameLabel.style.paddingTop = 5;
            _packageNameLabel.style.unityFontStyleAndWeight = FontStyle.Italic;

            _projectDescription = new Label()
            {
                name = "ProjectDescription"
            };
            _projectDescription.style.fontSize = 12;
            _projectDescription.style.paddingTop = 5;


            _btnLinkHtml = new Label()
            {
                name = "BtnLink"
            };

            _btnLinkHtml.text = "Source Code";
            _btnLinkHtml.style.fontSize = 12;
            _btnLinkHtml.style.paddingTop = 5;
            _btnLinkHtml.style.marginLeft = 0;
            _btnLinkHtml.style.paddingLeft = 0;
            _btnLinkHtml.style.flexGrow = 0;
            _btnLinkHtml.style.minWidth = new Length(20, LengthUnit.Pixel);
            _btnLinkHtml.style.maxWidth = new Length(300, LengthUnit.Pixel);
            _btnLinkHtml.style.color = new Color(0.2980392f, 0.498f, 1f);
            _btnLinkHtml.style.backgroundColor = Color.clear;
            _btnLinkHtml.RegisterCallback<ClickEvent>(OnBtnLinkClick);

            packageBtnContainer = new VisualElement()
            {
                name = "PackageBtnContainer"
            };

            packageBtnContainer.style.flexShrink = 1;
            packageBtnContainer.style.height = Length.Percent(100);
            packageBtnContainer.style.flexDirection = FlexDirection.Row;
            packageBtnContainer.style.paddingTop = 10;


            _headContainer.Add(_displayName);
            _headContainer.Add(_versionWithDate);
            _headContainer.Add(_authorLabel);
            _headContainer.Add(_packageNameLabel);
            _headContainer.Add(_projectDescription);
            _headContainer.Add(_btnLinkHtml);
            _headContainer.Add(packageBtnContainer);

            _btnUpdate = new Button(OnBtnUpdate)
            {
                name = "BtnUpdate"
            };
            _btnUpdate.text = "Update";
            _btnUpdate.style.width = new Length(90, LengthUnit.Pixel);
            _btnUpdate.style.height = new Length(24, LengthUnit.Pixel);
            _btnUpdate.style.marginLeft = 0;

            _btnInstall = new Button(OnBtnInstall)
            {
                name = "BtnInstall"
            };
            _btnInstall.text = "Install";
            _btnInstall.style.width = new Length(90, LengthUnit.Pixel);
            _btnInstall.style.height = new Length(24, LengthUnit.Pixel);
            _btnInstall.style.marginLeft = 0;

            _btnRemove = new Button(OnBtnRemove)
            {
                name = "BtnRemove"
            };
            _btnRemove.text = "Remove";
            _btnRemove.style.width = new Length(90, LengthUnit.Pixel);
            _btnRemove.style.height = new Length(24, LengthUnit.Pixel);
            _btnRemove.style.marginLeft = 0;



            packageBtnContainer.Add(_btnInstall);
            packageBtnContainer.Add(_btnUpdate);
            packageBtnContainer.Add(_btnRemove);

            Add(_mainContainer);
            RefreshView(_selectRepositoryPackageData);
        }

        public void RefreshView(RepositoryPackageData repositoryPackageData)
        {
            if (repositoryPackageData == null)
            {
                _mainContainer.visible = false;
                return;
            }

            _selectRepositoryPackageData = repositoryPackageData;

            _mainContainer.visible = true;
            _displayName.text = repositoryPackageData.displayName;
            _versionWithDate.text = $"{repositoryPackageData.version}· {repositoryPackageData.updatedAt}";
            _authorLabel.text = $"Author: {repositoryPackageData.authorName}";
            _packageNameLabel.text = repositoryPackageData.name;
            _projectDescription.text = string.IsNullOrEmpty(repositoryPackageData.description) ? "Description:TODO" : repositoryPackageData.description;


            _btnInstall.style.display = repositoryPackageData.PackageState == PackageState.UnInstall ? DisplayStyle.Flex : DisplayStyle.None;
            _btnUpdate.style.display = repositoryPackageData.PackageState == PackageState.Update ? DisplayStyle.Flex : DisplayStyle.None;
            _btnRemove.style.display = repositoryPackageData.PackageState == PackageState.Update || repositoryPackageData.PackageState == PackageState.Install ? DisplayStyle.Flex : DisplayStyle.None;
        }

        private void OnBtnLinkClick(ClickEvent e)
        {
            Application.OpenURL(_selectRepositoryPackageData.htmlUrl);
        }

        private void OnBtnUpdate()
        {
        }

        private void OnBtnInstall()
        {
        }

        private void OnBtnRemove()
        {
        }
    }
}