@model PowderCoating.Core.Entities.VendorCredit
@using PowderCoating.Core.Enums
@{
    ViewData["Title"] = $"Vendor Credit {Model.CreditNumber}";
    var accountMap = ViewBag.AccountMap as Dictionary<int, string> ?? new();
    var billMap    = ViewBag.BillMap    as Dictionary<int, string> ?? new();
    var openBills  = ViewBag.OpenBills  as List<PowderCoating.Core.Entities.Bill> ?? new();
    bool canApply  = Model.Status is VendorCreditStatus.Open or VendorCreditStatus.PartiallyApplied;
}

<div class="d-flex align-items-center mb-3 gap-2 flex-wrap">
    <a asp-action="Index" class="btn btn-sm btn-outline-secondary">
        <i class="bi bi-arrow-left me-1"></i>Back
    </a>
    <h4 class="mb-0 fw-semibold ms-2">@Model.CreditNumber</h4>
    @{
        var (badgeClass, label) = Model.Status switch
        {
            VendorCreditStatus.Open             => ("bg-success", "Open"),
            VendorCreditStatus.PartiallyApplied => ("bg-warning text-dark", "Partially Applied"),
            VendorCreditStatus.Applied          => ("bg-secondary", "Applied"),
            VendorCreditStatus.Voided           => ("bg-danger", "Voided"),
            _                                    => ("bg-secondary", Model.Status.ToString())
        };
    }
    <span class="badge @badgeClass ms-1 fs-6">@label</span>

    <div class="ms-auto d-flex gap-2">
        @if (Model.Status == VendorCreditStatus.Open)
        {
            <form asp-action="Post" asp-route-id="@Model.Id" method="post" class="d-inline">
                @Html.AntiForgeryToken()
                <button type="submit" class="btn btn-sm btn-success"
                        onclick="return confirm('Post this credit to the GL? Accounts Payable will be debited and expense accounts credited.')">
                    <i class="bi bi-check-circle me-1"></i>Post to GL
                </button>
            </form>
        }
        @if (Model.Status != VendorCreditStatus.Voided && Model.Status != VendorCreditStatus.Applied)
        {
            <form asp-action="Void" asp-route-id="@Model.Id" method="post" class="d-inline">
                @Html.AntiForgeryToken()
                <button type="submit" class="btn btn-sm btn-outline-danger"
                        onclick="return confirm('Void this vendor credit?')">
                    <i class="bi bi-x-circle me-1"></i>Void
                </button>
            </form>
        }
    </div>
</div>

@if (TempData["Success"] != null)
{
    <div class="alert alert-success alert-permanent alert-dismissible fade show">
        @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">
        @TempData["Error"]
        <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
    </div>
}

<div class="row g-3 mb-3">
    <div class="col-md-8">
        <div class="card shadow-sm h-100">
            <div class="card-body">
                <dl class="row mb-0">
                    <dt class="col-4 text-muted">Credit Number</dt>
                    <dd class="col-8 fw-semibold">@Model.CreditNumber</dd>

                    <dt class="col-4 text-muted">Vendor</dt>
                    <dd class="col-8">@Model.Vendor?.CompanyName</dd>

                    <dt class="col-4 text-muted">Date</dt>
                    <dd class="col-8">@Model.CreditDate.ToString("MMMM d, yyyy")</dd>

                    <dt class="col-4 text-muted">AP Account</dt>
                    <dd class="col-8">@Model.APAccount?.AccountNumber &ndash; @Model.APAccount?.Name</dd>

                    @if (!string.IsNullOrWhiteSpace(Model.Memo))
                    {
                        <dt class="col-4 text-muted">Memo</dt>
                        <dd class="col-8">@Model.Memo</dd>
                    }
                </dl>
            </div>
        </div>
    </div>
    <div class="col-md-4">
        <div class="card shadow-sm h-100">
            <div class="card-body text-center py-4">
                <div class="fs-5 fw-bold">@Model.Total.ToString("C")</div>
                <div class="text-muted small mb-3">Total Credit</div>
                @if (Model.RemainingAmount > 0)
                {
                    <div class="fs-4 fw-bold text-success">@Model.RemainingAmount.ToString("C")</div>
                    <div class="text-muted small">Remaining</div>
                }
                else
                {
                    <div class="text-muted">Fully Applied</div>
                }
            </div>
        </div>
    </div>
</div>

<div class="card shadow-sm mb-3">
    <div class="card-header fw-semibold">Line Items</div>
    <div class="card-body p-0">
        <table class="table table-sm mb-0">
            <thead class="table-light">
                <tr>
                    <th>Account</th>
                    <th>Description</th>
                    <th class="text-end">Amount</th>
                </tr>
            </thead>
            <tbody>
            @foreach (var line in Model.LineItems)
            {
                <tr>
                    <td class="small">
                        @if (line.AccountId.HasValue && accountMap.TryGetValue(line.AccountId.Value, out var acct))
                        { @acct }
                        else
                        { <span class="text-muted">&mdash;</span> }
                    </td>
                    <td class="text-muted small">@line.Description</td>
                    <td class="text-end">@line.Amount.ToString("C")</td>
                </tr>
            }
            </tbody>
            <tfoot class="table-light fw-semibold">
                <tr>
                    <td colspan="2" class="text-end">Total</td>
                    <td class="text-end">@Model.Total.ToString("C")</td>
                </tr>
            </tfoot>
        </table>
    </div>
</div>

@if (Model.Applications.Any())
{
    <div class="card shadow-sm mb-3">
        <div class="card-header fw-semibold">Applied To</div>
        <div class="card-body p-0">
            <table class="table table-sm mb-0">
                <thead class="table-light">
                    <tr>
                        <th>Bill</th>
                        <th>Applied Date</th>
                        <th class="text-end">Amount</th>
                    </tr>
                </thead>
                <tbody>
                @foreach (var app in Model.Applications.OrderByDescending(a => a.AppliedDate))
                {
                    <tr>
                        <td>
                            @if (billMap.TryGetValue(app.BillId, out var billNum))
                            {
                                <a asp-controller="Bills" asp-action="Details" asp-route-id="@app.BillId">@billNum</a>
                            }
                            else
                            {
                                <span class="text-muted">#@app.BillId</span>
                            }
                        </td>
                        <td>@app.AppliedDate.ToLocalTime().ToString("MMM d, yyyy")</td>
                        <td class="text-end">@app.Amount.ToString("C")</td>
                    </tr>
                }
                </tbody>
            </table>
        </div>
    </div>
}

@if (canApply && openBills.Any())
{
    <div class="card shadow-sm">
        <div class="card-header fw-semibold">Apply to a Bill</div>
        <div class="card-body p-0">
            <table class="table table-sm mb-0">
                <thead class="table-light">
                    <tr>
                        <th>Bill</th>
                        <th>Due Date</th>
                        <th class="text-end">Balance Due</th>
                        <th class="text-end">Apply Amount</th>
                        <th></th>
                    </tr>
                </thead>
                <tbody>
                @foreach (var bill in openBills)
                {
                    var maxApply = Math.Min(Model.RemainingAmount, bill.BalanceDue);
                    <tr>
                        <td>
                            <a asp-controller="Bills" asp-action="Details" asp-route-id="@bill.Id">@bill.BillNumber</a>
                        </td>
                        <td class="text-muted small">@Html.Raw(bill.DueDate?.ToString("MMM d, yyyy") ?? "&mdash;")</td>
                        <td class="text-end">@bill.BalanceDue.ToString("C")</td>
                        <td class="text-end" style="width:150px">
                            <form asp-action="Apply" method="post" class="d-inline">
                                @Html.AntiForgeryToken()
                                <input type="hidden" name="id"     value="@Model.Id" />
                                <input type="hidden" name="billId" value="@bill.Id" />
                                <div class="input-group input-group-sm">
                                    <span class="input-group-text">$</span>
                                    <input name="amount" type="number" step="0.01" min="0.01"
                                           max="@maxApply"
                                           value="@maxApply.ToString("F2")"
                                           class="form-control text-end" />
                                    <button type="submit" class="btn btn-sm btn-success">Apply</button>
                                </div>
                            </form>
                        </td>
                        <td></td>
                    </tr>
                }
                </tbody>
            </table>
        </div>
    </div>
}
else if (canApply)
{
    <div class="alert alert-info alert-permanent">
        No open bills found for this vendor to apply the credit against.
    </div>
}