@page "/tools"
@inject ProjectService ProjectService
@using CutList.Core.Formatting

<PageTitle>Cutting Tools</PageTitle>

<div class="d-flex justify-content-between align-items-center mb-3">
    <h1>Cutting Tools</h1>
    <button class="btn btn-primary" @onclick="ShowAddForm">Add Tool</button>
</div>

@if (loading)
{
    <p><em>Loading...</em></p>
}
else
{
    @if (showForm)
    {
        <div class="card mb-4">
            <div class="card-header">
                <h5 class="mb-0">@(editingTool == null ? "Add Cutting Tool" : "Edit Cutting Tool")</h5>
            </div>
            <div class="card-body">
                <div class="row g-3">
                    <div class="col-md-4">
                        <label class="form-label">Name</label>
                        <input type="text" class="form-control" @bind="formTool.Name" placeholder="e.g., Bandsaw" />
                    </div>
                    <div class="col-md-4">
                        <label class="form-label">Kerf Width (inches)</label>
                        <input type="number" step="0.0001" class="form-control" @bind="formTool.KerfInches" />
                        <div class="form-text">Common: 1/16" = 0.0625, 1/8" = 0.125</div>
                    </div>
                    <div class="col-md-4">
                        <label class="form-label">Default</label>
                        <div class="form-check mt-2">
                            <input type="checkbox" class="form-check-input" id="isDefault" @bind="formTool.IsDefault" />
                            <label class="form-check-label" for="isDefault">Set as default tool</label>
                        </div>
                    </div>
                </div>

                @if (!string.IsNullOrEmpty(errorMessage))
                {
                    <div class="alert alert-danger mt-3">@errorMessage</div>
                }

                <div class="mt-3 d-flex gap-2">
                    <button class="btn btn-primary" @onclick="SaveAsync" disabled="@saving">
                        @if (saving)
                        {
                            <span class="spinner-border spinner-border-sm me-1"></span>
                        }
                        @(editingTool == null ? "Add Tool" : "Save Changes")
                    </button>
                    <button class="btn btn-outline-secondary" @onclick="CancelForm">Cancel</button>
                </div>
            </div>
        </div>
    }

    @if (tools.Count == 0)
    {
        <div class="alert alert-info">
            No cutting tools found. Add your first cutting tool to get started.
        </div>
    }
    else
    {
        <table class="table table-striped table-hover">
            <thead>
                <tr>
                    <th>Name</th>
                    <th>Kerf Width</th>
                    <th>Default</th>
                    <th style="width: 140px;">Actions</th>
                </tr>
            </thead>
            <tbody>
                @foreach (var tool in tools)
                {
                    <tr>
                        <td>@tool.Name</td>
                        <td>@FormatKerf(tool.KerfInches)</td>
                        <td>
                            @if (tool.IsDefault)
                            {
                                <span class="badge bg-primary">Default</span>
                            }
                        </td>
                        <td>
                            <button class="btn btn-sm btn-outline-primary" @onclick="() => Edit(tool)">Edit</button>
                            <button class="btn btn-sm btn-outline-danger" @onclick="() => ConfirmDelete(tool)">Delete</button>
                        </td>
                    </tr>
                }
            </tbody>
        </table>
    }
}

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

@code {
    private List<CuttingTool> tools = new();
    private bool loading = true;
    private bool showForm;
    private bool saving;
    private string? errorMessage;

    private CuttingTool formTool = new();
    private CuttingTool? editingTool;

    private ConfirmDialog deleteDialog = null!;
    private CuttingTool? toolToDelete;
    private string deleteMessage = "";

    protected override async Task OnInitializedAsync()
    {
        tools = await ProjectService.GetCuttingToolsAsync();
        loading = false;
    }

    private void ShowAddForm()
    {
        editingTool = null;
        formTool = new CuttingTool { KerfInches = 0.125m };
        showForm = true;
        errorMessage = null;
    }

    private void Edit(CuttingTool tool)
    {
        editingTool = tool;
        formTool = new CuttingTool
        {
            Id = tool.Id,
            Name = tool.Name,
            KerfInches = tool.KerfInches,
            IsDefault = tool.IsDefault,
            IsActive = tool.IsActive
        };
        showForm = true;
        errorMessage = null;
    }

    private void CancelForm()
    {
        showForm = false;
        editingTool = null;
        errorMessage = null;
    }

    private async Task SaveAsync()
    {
        errorMessage = null;
        saving = true;

        try
        {
            if (string.IsNullOrWhiteSpace(formTool.Name))
            {
                errorMessage = "Name is required";
                return;
            }

            if (formTool.KerfInches < 0)
            {
                errorMessage = "Kerf width cannot be negative";
                return;
            }

            if (editingTool == null)
            {
                await ProjectService.CreateCuttingToolAsync(formTool);
            }
            else
            {
                await ProjectService.UpdateCuttingToolAsync(formTool);
            }

            tools = await ProjectService.GetCuttingToolsAsync();
            showForm = false;
            editingTool = null;
        }
        finally
        {
            saving = false;
        }
    }

    private void ConfirmDelete(CuttingTool tool)
    {
        toolToDelete = tool;
        deleteMessage = $"Are you sure you want to delete \"{tool.Name}\"?";
        deleteDialog.Show();
    }

    private async Task DeleteConfirmed()
    {
        if (toolToDelete != null)
        {
            await ProjectService.DeleteCuttingToolAsync(toolToDelete.Id);
            tools = await ProjectService.GetCuttingToolsAsync();
        }
    }

    private string FormatKerf(decimal kerf)
    {
        // Show as fraction if it's a common value
        var inches = (double)kerf;
        var formatted = FormatHelper.ConvertToMixedFraction(inches);
        return $"{formatted}\" ({kerf:0.####}\")";
    }
}