@*
 *                                dbMango
 *
 * Copyright 2025 Deutsche Bank AG
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *@
<style>
    .full-width {
    width: 408px !important;
    }

    .column-cb {
        min-width: 30px;
        width: 30px;
    }

    .min-w {
        min-width: 100px;
    }

</style>

<EditForm EditContext="EditContext">
    <div class="d-flex flex-row fit-content">
        <div class="fit-content mr-3">
            <div class="form-row fit-content">
                <FormItemText   Class="mr-2" Name="Role name"     Enabled="@IsNew" @bind-Value="Value.RoleName" Icon="icon-document-blank-sm" />
                @if (string.IsNullOrWhiteSpace(Value.Db))
                {
                    <FormItemText Class="mr-2" Name="Create within" Enabled="false" Value="Builtin" Icon="icon-annotate-sm" />
                }
                else
                {
                    <FormItemSelect Class="mr-2" Name="Create within" Enabled="@IsNew" @bind-Value="Value.Db" Icon="icon-annotate-sm" Values="@AllDatabases" />
                }
            </div>

            <div class="form-row fit-content">
                <RolesSelector Value="@Value.Roles"
                               AllRoles="@AllRoles" 
                               IsEnabled="@IsEnabled" />
            </div>

        </div>
        <div class="fit-content">
            <div class="d-flex flex-column">

                <div class="form-row fit-content mb-3">
                    <TableControl   Class="table table-hover table-striped table-forge table-forge-striped mr-3" 
                                    Items="@Value.Privileges" 
                                    PageSize="25"
                                    Selectable="true"
                                    SelectionChanged="@SelectedPrivilegeChanged"
                                    Filterable="true">
            
                        <TableColumnControl Name="Db" Field="Db" Class="column-name">
                            <Template Context="ctx">
                                @if (ctx.Row is PrivilegeModel privilege)
                                {
                                    if (privilege.Resource.AnyResource)
                                    {
                                        <span class="badge badge-secondary mr-1">Any</span>
                                    }
                                    else if (privilege.Resource.Cluster)
                                    {
                                        <span class="badge badge-secondary mr-1">Cluster</span>
                                    }
                                    else if (
                                        string.IsNullOrWhiteSpace(privilege.Resource.Db) 
                                        && string.IsNullOrWhiteSpace(privilege.Resource.Collection) 
                                        && !string.IsNullOrWhiteSpace(privilege.Resource.Buckets)
                                    )
                                    {
                                        <span class="badge badge-secondary mr-1">Buckets</span>
                                    }
                                    else
                                    {
                                        @privilege.Resource.Db
                                    }
                                }
                            </Template>
                        </TableColumnControl> 

                        <TableColumnControl Name="Collection" Field="Collection" Class="column-name" >
                            <Template Context="ctx">
                                @if (ctx.Row is PrivilegeModel privilege)
                                {
                                    @privilege.Resource.Collection
                                }
                            </Template>
                        </TableColumnControl>

                        <TableColumnControl Name="Actions" Field="" >
                            <Template Context="ctx">
                                @foreach (var action in ((PrivilegeModel)ctx.Row).Actions)
                                {
                                    <span class="badge badge-secondary mr-1">@action</span>
                                }
                            </Template>
                        </TableColumnControl>
                    </TableControl>
                </div>

                <div class="form-row fit-content mb-3">
                    <FormButton Name="Add"    Enabled="IsEnabled" OnClick="AddPrivileges"    Icon="icon-plus-sm" />
                    <FormButton Name="Delete" Enabled="IsEnabled" OnClick="DeletePrivileges" Icon="icon-trash-sm" />
                </div>

                <div class="form-row fit-content mb-3">
                    <FormItemText Class="mr-2" Enabled="IsEnabled" Name="Database"   @bind-Value="SelectedPrivilege.Resource.Db" Icon="icon-database-sm" />
                    <FormItemText Class="mr-2" Enabled="IsEnabled" Name="Collection" @bind-Value="SelectedPrivilege.Resource.Collection" Icon="icon-folder-outline-sm" />
                </div>

                <div class="form-row fit-content mb-3">
                    <FormItemCheckBox Class="mr-2" Enabled="IsEnabled" Name="AnyResource" @bind-Value="SelectedPrivilege.Resource.AnyResource" Icon="icon-number-outline"/>
                    <FormItemCheckBox Class="mr-2" Enabled="IsEnabled" Name="Cluster" @bind-Value="SelectedPrivilege.Resource.Cluster" Icon="icon-number-outline" />
                </div>

                <div class="form-row fit-content mb-3">
                    <FormItemText Class="full-width" Enabled="IsEnabled" Name="Buckets" @bind-Value="SelectedPrivilege.Resource.Buckets" Icon="icon-layers-sm" />
                </div>

                <div class="form-row fit-content">
                    <TableControl   Class="full-width table table-hover table-striped table-forge table-forge-striped mr-3" 
                                    Items="@SelectableActions" 
                                    PageSize="25" 
                                    Filterable="true">
            
                        <TableColumnControl Name="Name" Field="Name" Class="column-name"/>

                        <TableColumnControl Name="IsSelected" Field="IsSelected" Class="column-cb">
                            <Template Context="ctx">
                                <FormItemCheckBox @bind-Value="@(((SelectableString)ctx.Row).IsSelected)" Enabled="@IsEnabled" LabelOn="" LabelOff=""/>
                            </Template>
                        </TableColumnControl>
                    </TableControl>
                </div>

            </div>
        </div>
    </div>


</EditForm>

@code {
    [CascadingParameter] public IModalService Modal { get; set; } = null!;

    [Parameter] public string              Name       { get; set; } = $"newRole{++_count}";

    [Parameter]
    public RoleInfoModel       Value
    {
        get => field;
        set
        {
            if (field == value)
                return;
            field = value;
            UpdateSelectable();
        }
    } = new();

    [Parameter]
    public List<RoleInDbModel> AllRoles
    {
        get;
        set 
        {
            if (field == value)
                return;
            field = value;
            UpdateSelectable();
        }
    } = [];

    [Parameter]
    public List<string>        AllActions
    {
        get;
        set 
        {
            if (field == value)
                return;
            field = value;
            UpdateSelectable();
        }
    } = [];

    [Parameter] public List<string> AllDatabases { get; set; } = [];
    [Parameter] public bool IsEnabled  { get; set; } = true;
    [Parameter] public bool IsNew      { get; set; }

    private static int           _count;

    private EditContext   EditContext => _editContext!;
    private EditContext?  _editContext;

    public class SelectableString(string name, bool isSelected, Action<SelectableString, bool> update)
    {
        public override string ToString() => $"[{(IsSelected ? "X" : " ")}] {Name} {Db}";

        public string Name { get; } = name;
        public string Db   { get; init; } = string.Empty;

        public bool IsSelected
        {
            get;
            set
            {
                if (field == value)
                    return;
                field = value;
                update(this, field);
            }
        } = isSelected;
    }

    private List<SelectableString> SelectableActions { get; set; } = [];

    private PrivilegeModel         SelectedPrivilege
    {
        get;
        set
        {
            field = value;
            UpdateSelectable();
        }
    } = new();

    protected override void OnInitialized()
    {
        _editContext = new(this);
    }

    private void UpdateSelectable()
    {
        SelectableActions = AllActions
           .Select(x => new SelectableString
                   (
                       x,
                       SelectedPrivilege.Actions.Contains(x),
                       UpdateAllowedActions
                   ))
           .ToList();

        InvokeAsync(StateHasChanged);
    }

    private void UpdateAllowedActions(SelectableString name, bool isSelected)
    {
        if (isSelected)
        {
            if (!SelectedPrivilege.Actions.Contains(name.Name))
                SelectedPrivilege.Actions.Add(name.Name);
        }
        else
        {
            SelectedPrivilege.Actions.Remove(name.Name);
        }
    }

    private async Task SelectedPrivilegeChanged((dynamic row, string col) arg)
    {
        if (arg.row is not PrivilegeModel privilege)
            return;

        SelectedPrivilege = privilege;
        await InvokeAsync(StateHasChanged);
    }

    private Task AddPrivileges()
    {
        var newPrivilege = new PrivilegeModel();
        Value.Privileges.Add(newPrivilege);
        SelectedPrivilege = newPrivilege;
        return InvokeAsync(StateHasChanged);
    }

    private Task DeletePrivileges()
    {
        Value.Privileges.Remove(SelectedPrivilege);
        SelectedPrivilege = Value.Privileges.FirstOrDefault() ?? new PrivilegeModel();
        return InvokeAsync(StateHasChanged);
    }

}