using System.Text;
using FluentAssertions;
using Oms.Application.Labeling.Hiprint;

namespace Oms.Tests.Labeling;

public class QuestPdfLabelRendererTests
{
    [Fact]
    public async Task RenderAsync_SampleTemplate_ShouldProducePdfBytes()
    {
        var json = HiprintTemplateParserTests.LoadFixture("sample_100x150.json");
        var printData = new Dictionary<string, object?>
        {
            ["serviceNo"] = "S202607180001",
            ["recipientName"] = "John Lee",
            ["recipientAddressFull"] = "xxx Street, City, CA 90001",
            ["actualWeight"] = 1.25
        };

        var renderer = new QuestPdfLabelRenderer(new HiprintTemplateParser());
        var bytes = await renderer.RenderAsync(json, printData);

        bytes.Should().NotBeNullOrEmpty();
        // %PDF
        Encoding.ASCII.GetString(bytes.AsSpan(0, 4)).Should().Be("%PDF");
        bytes.Length.Should().BeGreaterThan(500);
    }

    [Fact]
    public async Task RenderManyAsync_TwoPages_ShouldProducePdfBytes()
    {
        var json = HiprintTemplateParserTests.LoadFixture("sample_100x150.json");
        var pages = new List<IReadOnlyDictionary<string, object?>>
        {
            new Dictionary<string, object?>
            {
                ["serviceNo"] = "S1",
                ["recipientName"] = "A",
                ["recipientAddressFull"] = "Addr A",
                ["actualWeight"] = 1
            },
            new Dictionary<string, object?>
            {
                ["serviceNo"] = "S2",
                ["recipientName"] = "B",
                ["recipientAddressFull"] = "Addr B",
                ["actualWeight"] = 2
            }
        };

        var renderer = new QuestPdfLabelRenderer(new HiprintTemplateParser());
        var bytes = await renderer.RenderManyAsync(json, pages);

        bytes.Should().NotBeNullOrEmpty();
        Encoding.ASCII.GetString(bytes.AsSpan(0, 4)).Should().Be("%PDF");
        bytes.Length.Should().BeGreaterThan(800);
    }
}