@model List<IGrouping<PowderCoating.Core.Enums.AccountType, PowderCoating.Application.DTOs.Accounting.AccountListDto>>
@using PowderCoating.Core.Enums

@{
    ViewData["Title"] = "Chart of Accounts";
    ViewData["PageIcon"] = "bi-journal-bookmark";
    ViewData["PageHelpTitle"] = "Chart of Accounts";
    ViewData["PageHelpContent"] = "The master list of financial accounts grouped by type: Asset (what you own), Liability (what you owe), Equity (owner&apos;s stake), Revenue (income), Cost of Goods Sold (direct costs), Expense (overhead). Click any row to view its ledger. System accounts (sys badge) cannot be deleted. Recalculate Balances recomputes every account&apos;s balance from transaction history.";

    string TypeIcon(AccountType t) => t switch
    {
        AccountType.Asset      => "bi-safe",
        AccountType.Liability  => "bi-credit-card",
        AccountType.Equity     => "bi-bar-chart-line",
        AccountType.Revenue    => "bi-graph-up-arrow",
        AccountType.CostOfGoods => "bi-box-seam",
        AccountType.Expense    => "bi-receipt-cutoff",
        _                      => "bi-journal"
    };

    string TypeColor(AccountType t) => t switch
    {
        AccountType.Asset      => "success",
        AccountType.Liability  => "danger",
        AccountType.Equity     => "primary",
        AccountType.Revenue    => "info",
        AccountType.CostOfGoods => "warning",
        AccountType.Expense    => "secondary",
        _                      => "secondary"
    };

    string TypeLabel(AccountType t) => t switch
    {
        AccountType.CostOfGoods => "Cost of Goods Sold",
        _ => t.ToString()
    };
}

<div class="d-flex justify-content-end mb-4">
    <div class="d-flex gap-2">
        <form asp-action="FixOpeningBalanceSigns" method="post"
              onsubmit="return confirm('Fix opening balance signs for Revenue, Liability, and Equity accounts imported from QuickBooks? This corrects negative balances caused by QB\'s sign convention.')">
            @Html.AntiForgeryToken()
            <button type="submit" class="btn btn-outline-warning"
                    title="Fixes negative opening balances on Revenue/Liability/Equity accounts imported from QuickBooks IIF">
                <i class="bi bi-sign-stop me-1"></i>Fix QB Import Signs
            </button>
        </form>
        <form id="recalcBalancesForm" asp-action="RecalculateBalances" method="post">
            @Html.AntiForgeryToken()
            <button type="button" id="btnRecalcBalances" class="btn btn-outline-secondary"
                    title="Recompute CurrentBalance for all accounts from ledger transactions">
                <i class="bi bi-arrow-repeat me-1"></i>Recalculate Balances
            </button>
        </form>
        <a asp-action="Create" class="btn btn-primary">
            <i class="bi bi-plus-lg me-1"></i>New Account
        </a>
    </div>
</div>

@* Bootstrap toast — confirmation before recalculating balances *@
<div class="toast-container position-fixed top-50 start-50 translate-middle p-3" style="z-index:1100">
    <div id="recalcConfirmToast" class="toast align-items-center border-0 bg-dark text-white" role="alert" aria-atomic="true" data-bs-autohide="false">
        <div class="toast-body d-flex flex-column gap-2 py-3 px-3">
            <div class="d-flex align-items-center gap-2">
                <i class="bi bi-arrow-repeat fs-5 text-warning"></i>
                <span class="fw-semibold">Recalculate all account balances?</span>
            </div>
            <p class="mb-1 small text-white-50">This will recompute every account's balance from transaction history. The page will reload when done.</p>
            <div class="d-flex gap-2">
                <button id="btnRecalcConfirm" type="button" class="btn btn-warning btn-sm fw-semibold">
                    <i class="bi bi-check-lg me-1"></i>Yes, recalculate
                </button>
                <button type="button" class="btn btn-outline-light btn-sm" data-bs-dismiss="toast">Cancel</button>
            </div>
        </div>
    </div>
</div>

@if (TempData["Success"] != null)
{
    <div class="alert alert-success 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-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>
}

@if (!Model.Any())
{
    <div class="card shadow-sm border-0">
        <div class="card-body text-center py-5">
            <i class="bi bi-journal-bookmark display-4 text-muted mb-3 d-block"></i>
            <h5 class="mb-2">No accounts set up yet</h5>
            <p class="text-muted mb-4">Get started quickly by loading a standard chart of accounts<br>tailored for a powder coating business.</p>
            <form asp-action="SeedDefaultAccounts" method="post">
                @Html.AntiForgeryToken()
                <button type="submit" class="btn btn-primary">
                    <i class="bi bi-magic me-1"></i>Create Default Accounts
                </button>
                <a asp-action="Create" class="btn btn-outline-secondary ms-2">
                    <i class="bi bi-plus-lg me-1"></i>Add Manually
                </a>
            </form>
        </div>
    </div>
}

@foreach (var group in Model)
{
    var color = TypeColor(group.Key);
    var icon = TypeIcon(group.Key);
    var label = TypeLabel(group.Key);

    <div class="card shadow-sm mb-4">
        <div class="card-header bg-@color bg-opacity-10 border-@color border-opacity-25">
            <div class="d-flex align-items-center gap-2">
                <i class="bi @icon text-@color fs-5"></i>
                <h6 class="mb-0 fw-semibold text-@color">@label</h6>
                <span class="badge bg-@color ms-auto">@group.Count() accounts</span>
            </div>
        </div>
        <div class="card-body p-0">
            <table class="table table-hover table-sm mb-0">
                <thead class="table-light">
                    <tr>
                        <th style="width:110px">Number</th>
                        <th>Name</th>
                        <th>Sub-Type</th>
                        <th>Parent</th>
                        <th style="width:80px">Status</th>
                        <th style="width:120px" class="text-end">Balance</th>
                        <th style="width:150px" class="text-end">Actions</th>
                    </tr>
                </thead>
                <tbody>
                    @foreach (var acct in group.OrderBy(a => a.AccountNumber))
                    {
                        <tr class="@(acct.IsActive ? "" : "text-muted opacity-75") table-row-link"
                            data-href="@Url.Action("Ledger", new { id = acct.Id })"
                            style="cursor:pointer">
                            <td>
                                <code class="text-@color">@acct.AccountNumber</code>
                            </td>
                            <td>
                                <span class="fw-medium">@acct.Name</span>
                                @if (acct.IsSystem)
                                {
                                    <span class="badge bg-secondary ms-1" title="System account — cannot be deleted">sys</span>
                                }
                            </td>
                            <td><span class="text-muted small">@acct.AccountSubType.ToDisplayName()</span></td>
                            <td>
                                @if (!string.IsNullOrEmpty(acct.ParentAccountName))
                                {
                                    <span class="text-muted small">@acct.ParentAccountName</span>
                                }
                            </td>
                            <td>
                                @if (acct.IsActive)
                                {
                                    <span class="badge bg-success-subtle text-success">Active</span>
                                }
                                else
                                {
                                    <span class="badge bg-secondary-subtle text-secondary">Inactive</span>
                                }
                            </td>
                            <td class="text-end text-nowrap fw-medium @(acct.CurrentBalance >= 0 ? "text-success" : "text-danger")">
                                @acct.CurrentBalance.ToString("C")
                            </td>
                            <td class="text-end text-nowrap">
                                <a asp-action="Ledger" asp-route-id="@acct.Id" class="btn btn-sm btn-outline-secondary me-1" title="View Ledger">
                                    <i class="bi bi-journal-text"></i>
                                </a>
                                <a asp-action="Edit" asp-route-id="@acct.Id" class="btn btn-sm btn-outline-primary me-1" title="Edit">
                                    <i class="bi bi-pencil"></i>
                                </a>
                                @if (!acct.IsSystem)
                                {
                                    <form asp-action="Delete" asp-route-id="@acct.Id" method="post" class="d-inline"
                                          onsubmit="return confirm('Delete account @acct.AccountNumber – @acct.Name?')">
                                        @Html.AntiForgeryToken()
                                        <button type="submit" class="btn btn-sm btn-outline-danger" title="Delete">
                                            <i class="bi bi-trash"></i>
                                        </button>
                                    </form>
                                }
                            </td>
                        </tr>
                    }
                </tbody>
            </table>
        </div>
    </div>
}

@if (!Model.Any())
{
    <div class="text-center py-5">
        <i class="bi bi-journal-x display-3 text-muted"></i>
        <p class="mt-3 text-muted">No accounts found. Use the Seed Data page to generate default accounts.</p>
    </div>
}

@section Scripts {
    <script>
        document.querySelectorAll('tr.table-row-link').forEach(row => {
            row.addEventListener('click', e => {
                if (e.target.closest('a, button, form')) return;
                window.location.href = row.dataset.href;
            });
        });

        // Recalculate Balances — show confirmation toast instead of native confirm()
        const recalcToast = new bootstrap.Toast(document.getElementById('recalcConfirmToast'));

        document.getElementById('btnRecalcBalances').addEventListener('click', () => {
            recalcToast.show();
        });

        document.getElementById('btnRecalcConfirm').addEventListener('click', () => {
            recalcToast.hide();
            document.getElementById('recalcBalancesForm').submit();
        });
    </script>
}