using RadicadeServer.RecNet.Avatar;
using Xunit;

namespace RadicadeServer.Tests;

public class AvatarCatalogParsingTests
{
    [Fact]
    public void V4UsesExactClientKeysAndNonNullStrings()
    {
        var item = new AvatarItem
        {
            AvatarItemDesc = "item,,,", FriendlyName = "Test", Rarity = 20,
            ThumbnailImage = "abc123.png"
        };
        var json = System.Text.Json.JsonSerializer.SerializeToElement(new AvatarItemV4(item));
        // PascalCase, matching a real capture of this route. The client has no case-insensitive
        // fallback, so a lowercased name leaves AvatarItemDesc null and the item unresolvable.
        Assert.Equal(
            new[]
            {
                "AvatarItemDesc", "AvatarItemId", "AvatarItemType", "CreatedAt", "FriendlyName",
                "IsBaseAvatarItem", "PlatformMask", "Rarity", "TagList", "ThumbnailImage", "Tooltip"
            },
            json.EnumerateObject().Select(property => property.Name).OrderBy(name => name));
        Assert.Equal("item,,,", json.GetProperty("AvatarItemDesc").GetString());
        Assert.Equal("", json.GetProperty("TagList").GetString());
        Assert.Equal(20, json.GetProperty("Rarity").GetInt32());
        Assert.Equal("abc123.png", json.GetProperty("ThumbnailImage").GetString());
        // 0 here would read as "usable on no platform" and the wardrobe would hide the item.
        Assert.Equal(-1, json.GetProperty("PlatformMask").GetInt32());
        var legacy = System.Text.Json.JsonSerializer.SerializeToElement(item);
        Assert.True(legacy.TryGetProperty("AvatarItemDesc", out _));
    }

    [Fact]
    public void RepositoryCatalogLoadsSupportedItemsWithoutLosingMetadata()
    {
        var json = File.ReadAllText(Path.Combine(AppContext.BaseDirectory, "Fixtures", "avatar.json"));
        var expected = AvatarUnlockCatalog.KeepSupportedItems(
            System.Text.Json.JsonSerializer.Deserialize<List<AvatarItem>>(json));
        var actual = AvatarUnlockCatalog.ParseCatalog(json);
        Assert.NotEmpty(actual);
        Assert.Equal(expected.Count, actual.Count);
        Assert.Equal(expected.Select(x => x.AvatarItemDesc), actual.Select(x => x.AvatarItemDesc));
        Assert.Equal(expected.Select(x => x.FriendlyName), actual.Select(x => x.FriendlyName));
        Assert.Equal(expected.Select(x => x.Rarity), actual.Select(x => x.Rarity));
    }

    [Fact]
    public void CatalogCanBeEnrichedWithItemIdsAndThumbnails()
    {
        var items = AvatarUnlockCatalog.ParseCatalog(File.ReadAllText(Path.Combine(AppContext.BaseDirectory, "Fixtures", "avatar.json")));
        var metadata = File.ReadAllText(Path.Combine(AppContext.BaseDirectory, "Fixtures", "merged-avatar.json"));
        var enriched = AvatarUnlockCatalog.EnrichWithMetadata(items, metadata);
        var shirt = Assert.Single(enriched.Where(x => x.AvatarItemDesc == "8aa79563-ace1-4ba7-ad0c-f3210a78142f,"));
        Assert.Equal(1018, shirt.AvatarItemId);
        Assert.False(string.IsNullOrWhiteSpace(shirt.ThumbnailImage));
    }

    [Fact]
    public void BadEntriesDoNotDiscardValidItems()
    {
        var items = AvatarUnlockCatalog.ParseCatalog("""
        [
          null, 42,
          {"AvatarItemDesc":"bad,,,","Rarity":"not-a-number"},
          {"AvatarItemDesc":"overflow,,,","AvatarItemId":9223372036854775807},
          {"FriendlyName":"Missing description"},
          {"AvatarItemDesc":"valid,,,","FriendlyName":"Valid item","Rarity":20}
        ]
        """);
        var item = Assert.Single(items);
        Assert.Equal("valid,", item.AvatarItemDesc);
        Assert.Equal(-1, item.PlatformMask);
        Assert.Equal("Valid item", item.FriendlyName);
    }

    [Fact]
    public void AcceptsCommentsTrailingCommasAndQuotedNumbers()
    {
        var items = AvatarUnlockCatalog.ParseCatalog("""
        [ // Hand-edited catalog
          {"avatarItemDesc":"valid,,,","rarity":"20","platformMask":"-1",},
        ]
        """);
        Assert.Equal(20, Assert.Single(items).Rarity);
    }

    [Theory]
    [InlineData(null)]
    [InlineData("")]
    [InlineData("null")]
    [InlineData("{}")]
    [InlineData("[broken")]
    public void InvalidCatalogReturnsEmptyForFallback(string? json)
    {
        Assert.Empty(AvatarUnlockCatalog.ParseCatalog(json));
    }
}