using Api.SeaHavenIndustries.Controllers;
using Data.SeaHavenIndustries;
using FluentAssertions;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Moq;
using SeaHaven.DataServices.Implementation;
using SeaHaven.Services.DTOs;
using SeaHaven.Services.Implementation;
using SeaHaven.Services.Validation;
using Xunit;

namespace Api.SeaHavenIndustries.Tests;

public class LocationControllerSitesTests
{
    private static ApplicationDbContext NewContext()
    {
        var options = new DbContextOptionsBuilder<ApplicationDbContext>()
            .UseInMemoryDatabase(Guid.NewGuid().ToString())
            .Options;
        return new ApplicationDbContext(options);
    }

    private static LocationController NewController(ApplicationDbContext ctx)
    {
        var dataService = new LocationDataService(ctx);
        var service = new LocationService(
            dataService,
            new AccountDataService(ctx),
            Mock.Of<ICreateLocationValidation>(),
            Mock.Of<IUpdateLocationValidation>());

        var controller = new LocationController(service, Mock.Of<ILogger<LocationController>>())
        {
            ControllerContext = new ControllerContext
            {
                HttpContext = new DefaultHttpContext()
            }
        };

        return controller;
    }

    private static async Task SeedSitesAsync(ApplicationDbContext ctx)
    {
        ctx.Locations.AddRange(
            new Locations { Id = 1, Name = "STL8", City = "St. Louis", State = "MO", AccountId = 100 },
            new Locations { Id = 2, Name = "BK5", City = "Dallas", State = "TX", AccountId = 100 },
            new Locations { Id = 3, Name = "IND9", City = "Indianapolis", State = "IN", AccountId = 100 },
            new Locations { Id = 4, Name = "DFW8", City = "Dallas", State = "TX", AccountId = 100 });
        await ctx.SaveChangesAsync();
    }

    [Fact]
    public async Task GetSites_ReturnsIdCodeCityState_OrderedByCode()
    {
        await using var ctx = NewContext();
        await SeedSitesAsync(ctx);
        var controller = NewController(ctx);

        var result = await controller.GetSites();

        var ok = result.Should().BeOfType<OkObjectResult>().Subject;
        var data = ok.Value.Should().BeAssignableTo<IReadOnlyList<SiteOptionDTO>>().Subject;

        data.Should().HaveCount(4);
        data.Select(s => s.Code).Should().ContainInOrder("BK5", "DFW8", "IND9", "STL8");
        data[0].Should().BeEquivalentTo(new SiteOptionDTO
        {
            Id = 2,
            Code = "BK5",
            City = "Dallas",
            State = "TX"
        });
    }

    [Fact]
    public async Task GetSites_FiltersByCode()
    {
        await using var ctx = NewContext();
        await SeedSitesAsync(ctx);
        var controller = NewController(ctx);

        var result = await controller.GetSites("bk5");

        var ok = result.Should().BeOfType<OkObjectResult>().Subject;
        var data = ok.Value.Should().BeAssignableTo<IReadOnlyList<SiteOptionDTO>>().Subject;

        data.Should().ContainSingle();
        data[0].Code.Should().Be("BK5");
    }

    [Fact]
    public async Task GetSites_FiltersByCity()
    {
        await using var ctx = NewContext();
        await SeedSitesAsync(ctx);
        var controller = NewController(ctx);

        var result = await controller.GetSites("Dallas");

        var ok = result.Should().BeOfType<OkObjectResult>().Subject;
        var data = ok.Value.Should().BeAssignableTo<IReadOnlyList<SiteOptionDTO>>().Subject;

        data.Should().HaveCount(2);
        data.Select(s => s.Code).Should().BeEquivalentTo("BK5", "DFW8");
    }

    [Fact]
    public async Task GetSites_OmitsLocationsWithoutAccountMapping()
    {
        await using var ctx = NewContext();
        ctx.Locations.AddRange(
            new Locations { Id = 1, Name = "STL8", City = "St. Louis", State = "MO", AccountId = 100 },
            new Locations { Id = 2, Name = "UNMAPPED1", City = "Nowhere", State = "ZZ" });
        await ctx.SaveChangesAsync();
        var controller = NewController(ctx);

        var result = await controller.GetSites();

        var ok = result.Should().BeOfType<OkObjectResult>().Subject;
        var data = ok.Value.Should().BeAssignableTo<IReadOnlyList<SiteOptionDTO>>().Subject;

        data.Should().ContainSingle();
        data[0].Code.Should().Be("STL8");

        var searchResult = await controller.GetSites("unmapped1");

        var searchOk = searchResult.Should().BeOfType<OkObjectResult>().Subject;
        var searchData = searchOk.Value.Should().BeAssignableTo<IReadOnlyList<SiteOptionDTO>>().Subject;

        searchData.Should().BeEmpty();
    }

    [Fact]
    public async Task GetSites_ForwardsCancellationToken()
    {
        await using var ctx = NewContext();
        await SeedSitesAsync(ctx);
        var controller = NewController(ctx);
        using var cancellation = new CancellationTokenSource();
        await cancellation.CancelAsync();

        var act = () => controller.GetSites(cancellationToken: cancellation.Token);

        await act.Should().ThrowAsync<OperationCanceledException>();
    }
}