@using PowderCoating.Core.Entities
@model FixedAsset

@{
    ViewData["Title"] = Model.Name;
    ViewData["PageIcon"] = "bi-building-gear";
    var fullyDeprec = Model.AccumulatedDepreciation >= (Model.PurchaseCost - Model.SalvageValue);
    var depreciableBase = Model.PurchaseCost - Model.SalvageValue;
    var progress = depreciableBase > 0
        ? (double)(Model.AccumulatedDepreciation / depreciableBase) * 100
        : 100;
    var entries = ViewBag.Entries as List<FixedAssetDepreciationEntry> ?? new();
    var monthsRemaining = (int)(ViewBag.MonthsRemaining ?? 0);
}

<div class="d-flex justify-content-between align-items-center mb-4">
    <a asp-action="Index" class="btn btn-outline-secondary">
        <i class="bi bi-arrow-left me-1"></i>Asset Register
    </a>
    <div class="d-flex gap-2">
        @if (!Model.IsDisposed)
        {
            <a asp-action="Edit" asp-route-id="@Model.Id" class="btn btn-outline-primary btn-sm">
                <i class="bi bi-pencil me-1"></i>Edit
            </a>
        }
        <form asp-action="Delete" asp-route-id="@Model.Id" method="post"
              onsubmit="return confirm('Delete this asset? This cannot be undone. Assets with depreciation history cannot be deleted.')">
            @Html.AntiForgeryToken()
            <button type="submit" class="btn btn-outline-danger btn-sm">
                <i class="bi bi-trash me-1"></i>Delete
            </button>
        </form>
    </div>
</div>

@if (TempData["Success"] != null)
{
    <div class="alert alert-success alert-permanent alert-dismissible fade show" role="alert">
        <i class="bi bi-check-circle me-2"></i>@TempData["Success"]
        <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
    </div>
}
@if (TempData["Error"] != null)
{
    <div class="alert alert-danger alert-permanent alert-dismissible fade show" role="alert">
        <i class="bi bi-exclamation-triangle me-2"></i>@TempData["Error"]
        <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
    </div>
}

<div class="row g-4">
    <!-- Left Column -->
    <div class="col-lg-4">
        <!-- Asset Details Card -->
        <div class="card border-0 shadow-sm mb-4">
            <div class="card-header bg-white border-0 py-3">
                <h5 class="mb-0 fw-semibold">
                    <i class="bi bi-building-gear me-2 text-primary"></i>@Model.Name
                </h5>
            </div>
            <div class="card-body">
                @if (!string.IsNullOrWhiteSpace(Model.Description))
                {
                    <p class="text-muted">@Model.Description</p>
                }

                <div class="mb-3">
                    @if (Model.IsDisposed)
                    {
                        <span class="badge bg-secondary fs-6">Disposed</span>
                        @if (Model.DisposalDate.HasValue)
                        {
                            <div class="text-muted small mt-1">Disposed @Model.DisposalDate.Value.ToLocalTime().ToString("MM/dd/yyyy")</div>
                        }
                    }
                    else if (fullyDeprec)
                    {
                        <span class="badge bg-light text-dark border fs-6">Fully Depreciated</span>
                    }
                    else
                    {
                        <span class="badge bg-success fs-6">Active</span>
                        <div class="text-muted small mt-1">@monthsRemaining month@(monthsRemaining == 1 ? "" : "s") remaining</div>
                    }
                </div>

                <table class="table table-sm table-borderless mb-0">
                    <tr>
                        <td class="text-muted ps-0">Purchase Date</td>
                        <td class="text-end fw-semibold">@Model.PurchaseDate.ToLocalTime().ToString("MM/dd/yyyy")</td>
                    </tr>
                    <tr>
                        <td class="text-muted ps-0">Purchase Cost</td>
                        <td class="text-end fw-semibold">@Model.PurchaseCost.ToString("C")</td>
                    </tr>
                    <tr>
                        <td class="text-muted ps-0">Salvage Value</td>
                        <td class="text-end">@Model.SalvageValue.ToString("C")</td>
                    </tr>
                    <tr>
                        <td class="text-muted ps-0">Useful Life</td>
                        <td class="text-end">@Model.UsefulLifeMonths months</td>
                    </tr>
                    <tr>
                        <td class="text-muted ps-0">Monthly Depreciation</td>
                        <td class="text-end">@Model.MonthlyDepreciation.ToString("C")</td>
                    </tr>
                </table>
            </div>
        </div>

        <!-- Book Value Card -->
        <div class="card border-0 shadow-sm mb-4">
            <div class="card-header bg-white border-0 py-3">
                <h5 class="mb-0 fw-semibold"><i class="bi bi-bar-chart me-2 text-primary"></i>Book Value</h5>
            </div>
            <div class="card-body">
                <div class="d-flex justify-content-between mb-1">
                    <span class="text-muted">Accumulated Depreciation</span>
                    <span class="text-danger fw-semibold">@Model.AccumulatedDepreciation.ToString("C")</span>
                </div>
                <div class="progress mb-3" style="height:8px;">
                    <div class="progress-bar bg-danger" style="width: @progress.ToString("F1")%"></div>
                </div>
                <div class="d-flex justify-content-between border-top pt-2">
                    <span class="fw-semibold">Book Value</span>
                    <span class="fw-bold fs-5 @(Model.BookValue <= 0 ? "text-muted" : "text-success")">@Model.BookValue.ToString("C")</span>
                </div>
            </div>
        </div>

        <!-- GL Accounts Card -->
        @if (Model.AssetAccount != null || Model.DepreciationExpenseAccount != null || Model.AccumDepreciationAccount != null)
        {
            <div class="card border-0 shadow-sm">
                <div class="card-header bg-white border-0 py-3">
                    <h5 class="mb-0 fw-semibold"><i class="bi bi-diagram-3 me-2 text-primary"></i>GL Accounts</h5>
                </div>
                <div class="card-body">
                    @if (Model.AssetAccount != null)
                    {
                        <div class="mb-2">
                            <div class="text-muted small">Asset Account</div>
                            <div class="fw-semibold">@Model.AssetAccount.AccountNumber &ndash; @Model.AssetAccount.Name</div>
                        </div>
                    }
                    @if (Model.DepreciationExpenseAccount != null)
                    {
                        <div class="mb-2">
                            <div class="text-muted small">Depreciation Expense</div>
                            <div class="fw-semibold">@Model.DepreciationExpenseAccount.AccountNumber &ndash; @Model.DepreciationExpenseAccount.Name</div>
                        </div>
                    }
                    @if (Model.AccumDepreciationAccount != null)
                    {
                        <div>
                            <div class="text-muted small">Accumulated Depreciation</div>
                            <div class="fw-semibold">@Model.AccumDepreciationAccount.AccountNumber &ndash; @Model.AccumDepreciationAccount.Name</div>
                        </div>
                    }
                </div>
            </div>
        }
    </div>

    <!-- Right Column: Depreciation History -->
    <div class="col-lg-8">
        <div class="card border-0 shadow-sm">
            <div class="card-header bg-white border-0 py-3 d-flex justify-content-between align-items-center">
                <h5 class="mb-0 fw-semibold"><i class="bi bi-clock-history me-2 text-primary"></i>Depreciation History</h5>
                <span class="badge bg-light text-dark border">@entries.Count period@(entries.Count == 1 ? "" : "s") posted</span>
            </div>
            <div class="card-body p-0">
                @if (!entries.Any())
                {
                    <div class="text-center text-muted py-5">
                        <i class="bi bi-calendar-x display-4 d-block mb-3 opacity-25"></i>
                        <p>No depreciation posted yet. Use the <strong>Post Monthly Depreciation</strong> button on the <a asp-action="Index">Asset Register</a>.</p>
                    </div>
                }
                else
                {
                    <div class="table-responsive">
                        <table class="table table-hover align-middle mb-0">
                            <thead class="table-light">
                                <tr>
                                    <th>Period</th>
                                    <th class="text-end">Amount</th>
                                    <th>Journal Entry</th>
                                    <th>Posted</th>
                                </tr>
                            </thead>
                            <tbody>
                                @foreach (var e in entries)
                                {
                                    <tr>
                                        <td>@(new DateTime(e.PeriodYear, e.PeriodMonth, 1).ToString("MMMM yyyy"))</td>
                                        <td class="text-end text-danger">@e.Amount.ToString("C")</td>
                                        <td>
                                            @if (e.JournalEntry != null)
                                            {
                                                <a asp-controller="JournalEntries" asp-action="Details" asp-route-id="@e.JournalEntryId">
                                                    @e.JournalEntry.EntryNumber
                                                </a>
                                            }
                                            else
                                            {
                                                <span class="text-muted">&mdash;</span>
                                            }
                                        </td>
                                        <td class="text-muted small">@e.CreatedAt.ToLocalTime().ToString("MM/dd/yyyy")</td>
                                    </tr>
                                }
                            </tbody>
                        </table>
                    </div>
                }
            </div>
        </div>
    </div>
</div>