@page "/jobs"
@inject JobService JobService
@inject NavigationManager Navigation

<PageTitle>Jobs</PageTitle>

<div class="d-flex justify-content-between align-items-center mb-3">
    <h1>Jobs</h1>
    <div class="d-flex gap-2">
        <button class="btn btn-success" @onclick="QuickCreateJob" disabled="@creating">
            @if (creating)
            {
                <span class="spinner-border spinner-border-sm me-1"></span>
            }
            Quick Create
        </button>
        <a href="jobs/new" class="btn btn-primary">New Job</a>
    </div>
</div>

<p class="text-muted mb-4">
    Jobs organize the parts you need to cut for a project. Add parts with their required lengths and quantities,
    assign stock materials, then run the optimizer to generate an efficient cut list that minimizes waste.
</p>

@if (loading)
{
    <p><em>Loading...</em></p>
}
else if (jobs.Count == 0)
{
    <div class="alert alert-info">
        No jobs found. <a href="jobs/new">Create your first job</a>.
    </div>
}
else
{
    <table class="table table-striped table-hover">
        <thead>
            <tr>
                <th>Job #</th>
                <th>Name</th>
                <th>Customer</th>
                <th>Cutting Tool</th>
                <th>Last Modified</th>
                <th style="width: 150px;">Actions</th>
            </tr>
        </thead>
        <tbody>
            @foreach (var job in pagedJobs)
            {
                <tr>
                    <td>
                        <a href="jobs/@job.Id">@job.JobNumber</a>
                        @if (job.IsLocked)
                        {
                            <i class="bi bi-lock-fill text-warning ms-1" title="Locked — materials ordered"></i>
                        }
                    </td>
                    <td>@(job.Name ?? "-")</td>
                    <td>@(job.Customer ?? "-")</td>
                    <td>@(job.CuttingTool?.Name ?? "-")</td>
                    <td>@((job.UpdatedAt ?? job.CreatedAt).ToLocalTime().ToString("g"))</td>
                    <td>
                        <a href="jobs/@job.Id" class="btn btn-sm btn-outline-primary" title="Edit"><i class="bi bi-pencil"></i></a>
                        <a href="jobs/@job.Id/results" class="btn btn-sm btn-success" title="Optimize"><i class="bi bi-scissors"></i></a>
                        <button class="btn btn-sm btn-outline-secondary" @onclick="() => DuplicateJob(job)" title="Copy"><i class="bi bi-copy"></i></button>
                        <button class="btn btn-sm btn-outline-danger" @onclick="() => ConfirmDelete(job)" title="Delete"><i class="bi bi-trash"></i></button>
                    </td>
                </tr>
            }
        </tbody>
    </table>

    <Pager TotalCount="jobs.Count" PageSize="pageSize" CurrentPage="currentPage" CurrentPageChanged="OnPageChanged" />
}

<ConfirmDialog @ref="deleteDialog"
               Title="Delete Job"
               Message="@deleteMessage"
               ConfirmText="Delete"
               OnConfirm="DeleteConfirmed" />

@code {
    private List<Job> jobs = new();
    private bool loading = true;
    private bool creating = false;
    private int currentPage = 1;
    private int pageSize = 25;
    private ConfirmDialog deleteDialog = null!;
    private Job? jobToDelete;
    private string deleteMessage = "";

    private IEnumerable<Job> pagedJobs => jobs.Skip((currentPage - 1) * pageSize).Take(pageSize);

    protected override async Task OnInitializedAsync()
    {
        jobs = await JobService.GetAllAsync();
        loading = false;
    }

    private async Task QuickCreateJob()
    {
        creating = true;
        try
        {
            var job = await JobService.QuickCreateAsync();
            Navigation.NavigateTo($"jobs/{job.Id}");
        }
        finally
        {
            creating = false;
        }
    }

    private void ConfirmDelete(Job job)
    {
        jobToDelete = job;
        deleteMessage = $"Are you sure you want to delete \"{job.DisplayName}\"? This will also delete all parts.";
        deleteDialog.Show();
    }

    private async Task DeleteConfirmed()
    {
        if (jobToDelete != null)
        {
            await JobService.DeleteAsync(jobToDelete.Id);
            jobs = await JobService.GetAllAsync();

            var totalPages = (int)Math.Ceiling((double)jobs.Count / pageSize);
            if (currentPage > totalPages && totalPages > 0)
                currentPage = totalPages;
        }
    }

    private void OnPageChanged(int page) => currentPage = page;

    private async Task DuplicateJob(Job job)
    {
        var duplicate = await JobService.DuplicateAsync(job.Id);
        Navigation.NavigateTo($"jobs/{duplicate.Id}");
    }
}