@namespace Oqtane.Installer
@using Oqtane.Interfaces
@inject NavigationManager NavigationManager
@inject IInstallationService InstallationService
@inject ISiteService SiteService
@inject IUserService UserService
@inject IDatabaseService DatabaseService
@inject IJSRuntime JSRuntime
@inject IStringLocalizer<Installer> Localizer

<div class="container">
    <div class="row">
        <div class="mx-auto text-center">
            <img src="oqtane-black.png" />
            <div style="font-weight: bold">@Localizer["Version:"] @Constants.Version</div>
        </div>
    </div>
    <hr class="app-rule" />
    <div class="row justify-content-center">
        <div class="col text-center">
            <h2>@Localizer["Database Configuration"]</h2><br />
            <table class="form-group" cellpadding="4" cellspacing="4" style="margin: auto;">
                <tbody>
                    <tr>
                        <td>
                            <Label For="databasetype" HelpText="Select the type of database you wish to create" ResourceKey="DatabaseType">Database Type:</Label>
                        </td>
                        <td>
                            <select id="databasetype" class="custom-select" value="@_databaseName" @onchange="(e => DatabaseChanged(e))">
                                @if (_databases != null)
                                {
                                    foreach (var database in _databases)
                                    {
                                        <option value="@database.Name">@Localizer[@database.Name]</option>
                                    }
                                }
                            </select>
                        </td>
                    </tr>
                    @{
                        if (_databaseConfigType != null)
                        {
                            @DatabaseConfigComponent;
                        }
                    }
                </tbody>
            </table>
        </div>
        <div class="col text-center">
            <h2>@Localizer["Application Administrator"]</h2><br />
            <table class="form-group" cellpadding="4" cellspacing="4" style="margin: auto;">
                <tbody>
                    <tr>
                        <td>
                            <Label For="username" HelpText="The username of the host user account ( this is not customizable )" ResourceKey="Username">Username:</Label>
                        </td>
                        <td>
                            <input id="username" type="text" class="form-control" @bind="@_hostUsername" readonly />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <Label For="password" HelpText="Provide the password for the host user account" ResourceKey="Password">Password:</Label>
                        </td>
                        <td>
                            <input id="password" type="password" class="form-control" @bind="@_hostPassword" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <Label For="confirm" HelpText="Please confirm the password entered above by entering it again" ResourceKey="Confirm">Confirm:</Label>
                        </td>
                        <td>
                            <input id="confirm" type="password" class="form-control" @bind="@_confirmPassword" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <Label For="email" HelpText="Provide the email address for the host user account" ResourceKey="Email">Email:</Label>
                        </td>
                        <td>
                            <input type="text" class="form-control" @bind="@_hostEmail" />
                        </td>
                    </tr>
                </tbody>
            </table>
        </div>
    </div>
    <hr class="app-rule" />
    <div class="row">
        <div class="mx-auto text-center">
            <button type="button" class="btn btn-success" @onclick="Install">@Localizer["Install Now"]</button><br /><br />
            <ModuleMessage Message="@_message" Type="MessageType.Error"></ModuleMessage>
        </div>
        <div class="app-progress-indicator" style="@_loadingDisplay"></div>
    </div>
</div>

@code {
    private List<Database> _databases;
    private string _databaseName = "LocalDB";
    private Type _databaseConfigType;
    private object _databaseConfig;
    private RenderFragment DatabaseConfigComponent { get; set; }

    private string _hostUsername = UserNames.Host;
    private string _hostPassword = string.Empty;
    private string _confirmPassword = string.Empty;
    private string _hostEmail = string.Empty;
    private string _message = string.Empty;
    private string _loadingDisplay = "display: none;";

    protected override async Task OnInitializedAsync()
    {
        _databases = await DatabaseService.GetDatabasesAsync();
        LoadDatabaseConfigComponent();
    }

    private void DatabaseChanged(ChangeEventArgs eventArgs)
    {
        try
        {
            _databaseName = (string)eventArgs.Value;

            LoadDatabaseConfigComponent();
        }
        catch
        {
            _message = Localizer["Error loading Database Configuration Control"];
        }
    }

    private void LoadDatabaseConfigComponent()
    {
        var database = _databases.SingleOrDefault(d => d.Name == _databaseName);
        if (database != null)
        {
            _databaseConfigType = Type.GetType(database.ControlType);
            DatabaseConfigComponent = builder =>
            {
                builder.OpenComponent(0, _databaseConfigType);
                builder.AddComponentReferenceCapture(1, inst => { _databaseConfig = Convert.ChangeType(inst, _databaseConfigType); });
                builder.CloseComponent();
            };
        }
    }

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender)
        {
            var interop = new Interop(JSRuntime);
            await interop.IncludeLink("app-stylesheet", "stylesheet", "https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css", "text/css", "sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T", "anonymous", "");
        }
    }

    private async Task Install()
    {
        var connectionString = String.Empty;
        if (_databaseConfig is IDatabaseConfigControl databaseConfigControl)
        {
            connectionString = databaseConfigControl.GetConnectionString();
        }

        if (connectionString != "" && _hostUsername != "" && _hostPassword.Length >= 6 && _hostPassword == _confirmPassword && _hostEmail != "")
        {
            _loadingDisplay = "";
            StateHasChanged();

            Uri uri = new Uri(NavigationManager.Uri);
            
            var database = _databases.SingleOrDefault(d => d.Name == _databaseName);

            var config = new InstallConfig
            {
                DatabaseType = database.DBType,
                ConnectionString = connectionString,
                Aliases = uri.Authority,
                HostEmail = _hostEmail,
                HostPassword = _hostPassword,
                HostName = UserNames.Host,
                TenantName = TenantNames.Master,
                IsNewTenant = true,
                SiteName = Constants.DefaultSite
            };

            var installation = await InstallationService.Install(config);
            if (installation.Success)
            {
                NavigationManager.NavigateTo(uri.Scheme + "://" + uri.Authority, true);
            }
            else
            {
                _message = installation.Message;
                _loadingDisplay = "display: none;";
            }
        }
        else
        {
            _message = Localizer["Please Enter All Fields And Ensure Passwords Match And Are Greater Than 5 Characters In Length"];
        }
    }

}