using System.Diagnostics.CodeAnalysis;
using System.Text.Json.Nodes;
using CentronNexus.Configuration.Migrations;

namespace CentronNexusTests.Configuration.Migrations;

public class MultiWebServiceToSingleWebServiceConfigMigrationTests
{
    private readonly MultiWebServiceToSingleWebServiceConfigMigration202308181135 _migration = new();

    [Fact]
    public void Success()
    {
        var input = new JsonObject
        {
            ["CentronWebService"] = new JsonObject
            {
                ["WebServices"] = new JsonArray
                {
                    new JsonObject
                    {
                        ["IsDefault"] = false,
                        ["Url"] = "https://1.de"
                    },
                    new JsonObject
                    {
                        ["IsDefault"] = true,
                        ["Url"] = "https://2.de" // This one should be taken as the Url
                    },
                }
            }
        };

        this.Test(true, input);

        Assert.Equal("https://2.de", (string?)input["CentronWebService"]?["Url"]); // The default web-service should be in CentronWebService->Url now
        Assert.Null(input["CentronWebService"]?["WebServices"]); // The CentronWebService->WebServices array should be removed
    }

    [Fact]
    public void Failure_CentronWebService_NotFound()
    {
        var input = new JsonObject
        {
            ["Something"] = 12
            // No CentronWebService here, do nothing
        };

        this.Test(false, input);
    }

    [Fact]
    public void Failure_WebServices_NotFound()
    {
        var input = new JsonObject
        {
            ["CentronWebService"] = new JsonObject
            {
                ["Something"] = 12
                // NoWebServices here, do nothing
            }
        };

        this.Test(false, input);
    }

    [Fact]
    public void Failure_Url_AlreadyExists()
    {
        var input = new JsonObject
        {
            ["CentronWebService"] = new JsonObject
            {
                ["Url"] = "https://google.de", // Url already exists, do nothing
                ["WebServices"] = new JsonArray
                {
                    new JsonObject
                    {
                        ["IsDefault"] = false,
                        ["Url"] = "https://1.de"
                    },
                    new JsonObject
                    {
                        ["IsDefault"] = true,
                        ["Url"] = "https://2.de"
                    },
                }
            }
        };

        this.Test(false, input);
    }

    private void Test(bool expectedResult, JsonNode input)
    {
        var result = this._migration.TryApplyTo(input);
        Assert.Equal(expectedResult, result);
    }
}