@model (string BrandColor, string CssFileId, string CustomCSSLink, string EmbeddedCSS)
@using BTCPayServer.Abstractions.Extensions
@using Microsoft.AspNetCore.Mvc.TagHelpers
@using BTCPayServer.Abstractions.Contracts
@inject IFileService FileService
@{
    var cssUrl = !string.IsNullOrEmpty(Model.CssFileId)
        ? await FileService.GetFileUrl(Context.Request.GetAbsoluteRootUri(), Model.CssFileId)
        : null;
}
@if (!string.IsNullOrEmpty(Model.BrandColor))
{
    var brandColor = Model.BrandColor;
    var accentColor = ColorPalette.Default.AdjustBrightness(brandColor, (float)-0.15);
    var complement = ColorPalette.Default.TextColor(brandColor).ToLowerInvariant();
    var complementColor = $"var(--btcpay-{(complement == "black" ? "black" : "white")})";
    <style>
        :root {
            --btcpay-primary: @brandColor;
            --btcpay-primary-shadow: @brandColor;
            --btcpay-primary-bg-hover: @accentColor;
            --btcpay-primary-bg-active: @accentColor;
            --btcpay-body-link-accent: @accentColor;
            --btcpay-primary-text: @complementColor;
            --btcpay-primary-text-hover: @complementColor;
            --btcpay-primary-text-active: @complementColor;
        }
    </style>
}
@if (!string.IsNullOrEmpty(cssUrl))
{
    <link href="@cssUrl" asp-append-version="true" rel="stylesheet" />
}
@* Deprecated, but added for backwards-compatibility *@
@if (!string.IsNullOrEmpty(Model.CustomCSSLink))
{
    <link href="@Model.CustomCSSLink" asp-append-version="true" rel="stylesheet" />
}
@if (!string.IsNullOrEmpty(Model.EmbeddedCSS))
{
    <style>
        @Safe.Raw(Model.EmbeddedCSS)
    </style>
}