@using Amazon.Lambda.TestTool.Runtime;
@inject LocalLambdaOptions LambdaOptions

<!-- Select Config File and Function Handler -->
<div class="row">
    <div class="col-sm form-group">
        <label class="col-xs-3 control-label" for="config-file">Config File</label>
        <div class="col-xs-5">
            <select class="form-control" @bind="ConfigFile">
                @foreach (var file in @LambdaOptions.LambdaConfigFiles)
                {
                    <option value="@file">@System.IO.Path.GetFileName(file)</option>
                }
            </select>
        </div>
    </div>
    <div class="col-sm form-group">
        <label class="col-xs-3 control-label" for="functions-picker">Function</label>
        <div class="col-xs-5">
            <select class="form-control" name="color" @bind="FunctionHandler">
                @if (AvailableFunctions != null)
                {
                    @foreach (var function in AvailableFunctions)
                    {
                        <option value="@function.FunctionInfo.Handler">@function.FunctionInfo.Name</option>
                    }
                }
            </select>
        </div>
    </div>
</div>

<!-- Select Profile and Region -->
<div class="row">
    <div class="col-sm form-group" for="functions-picker">
        <label class="col-xs-3 control-label" for="aws-profile">AWS Credential Profile</label>
        <select id="aws-profile" class="form-control" @bind="AWSProfile">
            @if (AvailableAWSProfiles != null)
            {
                @foreach (var profile in @AvailableAWSProfiles)
                {
                    <option value="@profile">@profile</option>
                }
            }
        </select>
    </div>
    <div class="col-sm form-group" for="aws-region">
        <label class="col-xs-3 control-label">AWS Region</label>
        <input id="aws-region" type="text" class="form-control"  @bind="AWSRegion"/>
    </div>
</div>

<!-- TODO: Add ability to set environment variables -->

@code {

    string _awsProfile;

    public string AWSProfile
    {
        get => this._awsProfile;
        set
        {
            this._awsProfile = value;
            OnChangeAsync?.Invoke();
        }
    }

    string _awsRegion;
    public string AWSRegion
    {
        get => this._awsRegion;
        set
        {
            this._awsRegion = value;
            OnChangeAsync?.Invoke();
        }
    }

    public Func<Task> OnChangeAsync { get; set; }

    private string _configFile;
    public string ConfigFile
    {
        get => this._configFile;
        set
        {
            this._configFile = value;
            UpdateConfigFileChange();

            OnChangeAsync?.Invoke();
        }
    }

    string _functionHandler;
    public string FunctionHandler
    {
        get => this._functionHandler;
        set
        {
            this._functionHandler = value;
            OnChangeAsync?.Invoke();
        }
    }

    IList<string> AvailableAWSProfiles;


    IList<LambdaFunction> AvailableFunctions;

    protected override Task OnInitializedAsync()
    {
        AvailableAWSProfiles = this.LambdaOptions.LambdaRuntime.AWSService.ListProfiles();


        if(LambdaOptions.LambdaConfigFiles.Count > 0)
        {
            this.ConfigFile = LambdaOptions.LambdaConfigFiles[0];
        }

        return Task.CompletedTask;
    }

    void UpdateConfigFileChange()
    {
        var configInfo = LambdaDefaultsConfigFileParser.LoadFromFile(this.ConfigFile);
        AvailableFunctions = this.LambdaOptions.LambdaRuntime.LoadLambdaFunctions(configInfo.FunctionInfos);
        this.FunctionHandler = this.AvailableFunctions.First()?.FunctionInfo?.Handler;


        if (configInfo.AWSProfile != null && this.AvailableAWSProfiles.Contains(configInfo.AWSProfile))
        {
            this.AWSProfile = configInfo.AWSProfile;
        }

        if(!string.IsNullOrEmpty(configInfo.AWSRegion))
        {
            this.AWSRegion = configInfo.AWSRegion;
        }

        this.StateHasChanged();
    }
}