using System.Linq;
using System.Net;
using System.Net.Http.Json;
using NeonSprawl.Server.Game.Encounters;
using Xunit;

namespace NeonSprawl.Server.Tests.Game.Encounters;

public class EncounterDefinitionsWorldApiTests
{
    /// <summary>Frozen prototype encounter id. Keep in sync with Bruno.</summary>
    public const string PrototypeCombatPocket = "prototype_combat_pocket";

    [Fact]
    public async Task GetEncounterDefinitions_ShouldReturnSchemaV1_WithFrozenEncounterAndNestedRewardTable()
    {
        // Arrange
        await using var factory = new InMemoryWebApplicationFactory();
        var client = factory.CreateClient();
        // Act
        var response = await client.GetAsync("/game/world/encounter-definitions");
        // Assert
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        var body = await response.Content.ReadFromJsonAsync<EncounterDefinitionsListResponse>();
        Assert.NotNull(body);
        Assert.Equal(EncounterDefinitionsListResponse.CurrentSchemaVersion, body!.SchemaVersion);
        Assert.NotNull(body.Encounters);
        Assert.Single(body.Encounters);

        var encounter = body.Encounters[0];
        Assert.Equal(PrototypeCombatPocket, encounter.Id);
        Assert.Equal("Prototype Combat Pocket", encounter.DisplayName);
        Assert.NotNull(encounter.CompletionCriteria);
        Assert.Equal("defeat_all_targets", encounter.CompletionCriteria.Kind);
        Assert.Equal(
            ["prototype_npc_melee", "prototype_npc_ranged", "prototype_npc_elite"],
            encounter.RequiredNpcInstanceIds);

        Assert.NotNull(encounter.RewardTable);
        Assert.Equal("prototype_combat_pocket_clear", encounter.RewardTable.Id);
        Assert.Equal("Prototype Combat Pocket Clear", encounter.RewardTable.DisplayName);
        Assert.Equal(2, encounter.RewardTable.FixedGrants.Count);

        var scrapGrant = encounter.RewardTable.FixedGrants.Single(g => g.ItemId == "scrap_metal_bulk");
        Assert.Equal(10, scrapGrant.Quantity);

        var tokenGrant = encounter.RewardTable.FixedGrants.Single(g => g.ItemId == "contract_handoff_token");
        Assert.Equal(1, tokenGrant.Quantity);
    }
}