@page "/accounts"
@using BudgetApp.Data.Entities
@attribute [Authorize]
@inject IAccountRepository AccountService
@inject AuthenticationStateProvider AuthStateProvider
@inject AppState AppState
@rendermode InteractiveServer

<PageTitle>Accounts</PageTitle>

<h3 class="mb-2">Accounts</h3>
<p class="text-muted mb-4">Manage your financial accounts, balances and currencies.</p>

<div class="card mb-4">
    <div class="card-header">
        <h5 class="mb-0">Add Account</h5>
    </div>
    <div class="card-body">
        <EditForm Model="_formModel" OnValidSubmit="AddAccount" FormName="addAccount">
            <ToastValidator />
            <div class="row g-3 align-items-end">
                <div class="col-md-3">
                    <label class="form-label">Account Name</label>
                    <InputText @bind-Value="_formModel.Name" class="form-control" placeholder="e.g. Current Account" title="A friendly name for this account" />
                </div>
                <div class="col-md-2">
                    <label class="form-label">Current Balance</label>
                    <InputNumber @bind-Value="_formModel.CurrentBalance" class="form-control numeric-input" title="The opening balance for this account" />
                </div>
                <div class="col-md-2">
                    <label class="form-label">Currency</label>
                    <InputSelect @bind-Value="_formModel.CurrencyCode" class="form-select" title="Currency used for this account">
                        @foreach (var kvp in Account.CurrencySymbols)
                        {
                            <option value="@kvp.Key">@kvp.Key (@kvp.Value)</option>
                        }
                    </InputSelect>
                </div>
                <div class="col-md-2">
                    <label class="form-label">Colour</label>
                    <InputText @bind-Value="_formModel.Color" type="color" class="form-control form-control-color" title="Colour used to identify this account in charts and lists" />
                </div>
                <div class="col-md-2">
                    <button type="submit" class="btn btn-primary w-100">Add</button>
                </div>
            </div>
        </EditForm>
    </div>
</div>

@if (_accounts is null)
{
    <p><em>Loading...</em></p>
}
else if (_accounts.Count == 0)
{
    <div class="alert alert-info">No accounts yet. Add one above to get started.</div>
}
else
{
    <div class="row">
        @foreach (var account in _accounts)
        {
            <div class="col-md-4 col-sm-6 mb-3">
                <div class="card h-100" style="border-left: 4px solid @account.Color;">
                    <div class="card-body">
                        @if (_editingAccountId == account.Id)
                        {
                            <div class="mb-2">
                                <label class="form-label form-label-sm mb-1">Name</label>
                                <input type="text" class="form-control form-control-sm" @bind="_editName" />
                            </div>
                            <div class="mb-2">
                                <label class="form-label form-label-sm mb-1">Currency</label>
                                <select class="form-select form-select-sm" @bind="_editCurrencyCode">
                                    @foreach (var kvp in Account.CurrencySymbols)
                                    {
                                        <option value="@kvp.Key">@kvp.Key (@kvp.Value)</option>
                                    }
                                </select>
                            </div>
                            <div class="mb-2">
                                <label class="form-label form-label-sm mb-1">Colour</label>
                                <input type="color" class="form-control form-control-color form-control-sm" @bind="_editColor" />
                            </div>
                            <div class="d-flex gap-1">
                                <button class="btn btn-success btn-sm" @onclick="() => SaveAccountDetails(account.Id)">Save</button>
                                <button class="btn btn-secondary btn-sm" @onclick="CancelAccountEdit">Cancel</button>
                            </div>
                        }
                        else
                        {
                            <div class="d-flex justify-content-between align-items-start">
                                <div>
                                    <h5 class="card-title mb-1">@account.Name</h5>
                                    <small class="text-muted">@account.CurrencyCode</small>
                                </div>
                                <div class="d-flex gap-1">
                                    <button class="btn btn-outline-primary btn-sm" title="Edit account name, currency or colour" @onclick="() => StartAccountEdit(account)">Edit</button>
                                    <button class="btn btn-outline-danger btn-sm" title="Delete this account and all its transactions" @onclick="() => ConfirmDeleteAccount(account)">Delete</button>
                                </div>
                            </div>

                            @if (_editingBalanceAccountId == account.Id)
                            {
                                <div class="mt-2">
                                    <div class="input-group input-group-sm">
                                        <span class="input-group-text">@account.GetSymbol()</span>
                                        <input type="number" class="form-control numeric-input" step="0.01"
                                               @bind="_editingBalanceValue" />
                                    </div>
                                    <div class="d-flex gap-1 mt-2">
                                        <button class="btn btn-success btn-sm flex-fill" @onclick="() => SaveBalance(account.Id)">Save</button>
                                        <button class="btn btn-outline-secondary btn-sm flex-fill" @onclick="CancelBalanceEdit">Cancel</button>
                                    </div>
                                </div>
                            }
                            else
                            {
                                <h4 class="@(account.CurrentBalance >= 0 ? "text-success" : "text-danger") mb-1"
                                    style="cursor: pointer;" title="Click to edit balance"
                                    @onclick="() => StartBalanceEdit(account)">
                                    @account.FormatAmount(account.CurrentBalance)
                                </h4>
                                <small class="text-muted">Click balance to adjust</small>
                            }
                        }
                    </div>
                </div>
            </div>
        }
    </div>
}

@if (_showDeleteModal && _pendingDeleteAccount is not null)
{
    <div class="modal d-block" tabindex="-1" style="background: rgba(0,0,0,.5);">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title">Delete Account</h5>
                    <button type="button" class="btn-close" @onclick="CancelDeleteAccount"></button>
                </div>
                <div class="modal-body">
                    <p>Are you sure you want to delete <strong>@_pendingDeleteAccount.Name</strong>?</p>
                    <p class="text-danger mb-0">This will permanently remove the account and all its transactions.</p>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" @onclick="CancelDeleteAccount">Cancel</button>
                    <button type="button" class="btn btn-danger" @onclick="DeleteAccountConfirmed">Delete</button>
                </div>
            </div>
        </div>
    </div>
}

@code {

    // Balance editing state

    // Account details editing state

    // Delete confirmation state

}