@namespace Oqtane.Modules.Admin.Jobs
@using Oqtane.Enums
@inherits ModuleBase
@inject IJobService JobService

@if (_jobs == null)
{
    <p><em>Loading...</em></p>
}
else
{
    <ActionLink Action="Add" Text="Add Job" />
    <ActionLink Action="Log" Class="btn btn-secondary" Text="View Logs" />
    <button type="button" class="btn btn-secondary" @onclick="(async () => await Refresh())">Refresh</button>
    <br /><br />

    <Pager Items="@_jobs">
        <Header>
            <th>&nbsp;</th>
            <th>&nbsp;</th>
            <th>&nbsp;</th>
            <th>Name</th>
            <th>Status</th>
            <th>Frequency</th>
            <th>Next Execution</th>
            <th>&nbsp;</th>
        </Header>
        <Row>
            <td><ActionLink Action="Edit" Parameters="@($"id=" + context.JobId.ToString())" /></td>
            <td><ActionDialog Header="Delete Job" Message="@("Are You Sure You Wish To Delete This Job?")" Action="Delete" Security="SecurityAccessLevel.Host" Class="btn btn-danger" OnClick="@(async () => await DeleteJob(context))" /></td>
            <td><ActionLink Action="Log" Class="btn btn-secondary" Parameters="@($"id=" + context.JobId.ToString())" /></td>
            <td>@context.Name</td>
            <td>@DisplayStatus(context.IsEnabled, context.IsExecuting)</td>
            <td>@DisplayFrequency(context.Interval, context.Frequency)</td>
            <td>@context.NextExecution</td>
            <td>
                @if (context.IsStarted)
                {
                    <button type="button" class="btn btn-danger" @onclick="(async () => await StopJob(context.JobId))">Stop</button>
                }
                else
                {
                    <button type="button" class="btn btn-success" @onclick="(async () => await StartJob(context.JobId))">Start</button>
                }
            </td>
        </Row>
    </Pager>
}

@code {
    private List<Job> _jobs;
    
    public override SecurityAccessLevel SecurityAccessLevel { get { return SecurityAccessLevel.Host; } }

    protected override async Task OnParametersSetAsync()
    {
        _jobs = await JobService.GetJobsAsync();
    }

    private string DisplayStatus(bool isEnabled, bool isExecuting)
    {
        var status = string.Empty;
        if (!isEnabled)
        {
            status = "Disabled";
        }
        else
        {
            if (isExecuting)
            {
                status = "Executing";
            }
            else
            {
                status = "Idle";
            }
        }

        return status;
    }


    private string DisplayFrequency(int interval, string frequency)
    {
        var  result = "Every " + interval.ToString() + " ";
        switch (frequency)
        {
            case "m":
                result += "Minute";
                break;
            case "H":
                result += "Hour";
                break;
            case "d":
                result += "Day";
                break;
            case "M":
                result += "Month";
                break;
        }
        
        if (interval > 1)
        {
            result += "s";
        }
        
        return result;
    }

    private async Task DeleteJob(Job job)
    {
        try
        {
            await JobService.DeleteJobAsync(job.JobId);
            await logger.LogInformation("Job Deleted {Job}", job);
            StateHasChanged();
        }
        catch (Exception ex)
        {
            await logger.LogError(ex, "Error Deleting Job {Job} {Error}", job, ex.Message);
            AddModuleMessage("Error Deleting Job", MessageType.Error);
        }
    }

    private async Task StartJob(int jobId)
    {
        await JobService.StartJobAsync(jobId);
    }

    private async Task StopJob(int jobId)
    {
        await JobService.StopJobAsync(jobId);
    }

    private async Task Refresh()
    {
        _jobs = await JobService.GetJobsAsync();
        StateHasChanged();
    }
}