using System.Text;
using MoonlightServers.Api.Infrastructure.Database;
using MoonlightServers.Api.Infrastructure.Database.Entities;
using MoonlightServers.Api.Infrastructure.Database.Json;
using VYaml.Annotations;
using VYaml.Serialization;

namespace MoonlightServers.Api.Admin.Templates;

public class PelicanEggImportService
{
    private readonly DatabaseRepository<Template> TemplateRepository;
    private readonly DatabaseRepository<TemplateDockerImage> DockerImageRepository;

    public PelicanEggImportService(
        DatabaseRepository<Template> templateRepository,
        DatabaseRepository<TemplateDockerImage> dockerImageRepository
    )
    {
        TemplateRepository = templateRepository;
        DockerImageRepository = dockerImageRepository;
    }

    public async Task<Template> ImportAsync(string content)
    {
        var egg = YamlSerializer.Deserialize<Egg>(Encoding.UTF8.GetBytes(content));

        var template = new Template()
        {
            AllowUserDockerImageChange = true,
            Author = egg.Author,
            Description = egg.Description,
            DonateUrl = null,
            Name = egg.Name,
            UpdateUrl = egg.Meta.UpdateUrl,
            Version = "1.0.0",
            FilesConfig = new FilesConfig()
            {
                ConfigurationFiles = egg.Config.Files.Select(file => new ConfigurationFile()
                {
                    Path = file.Key,
                    Parser = file.Value.Parser,
                    Mappings = file.Value.Find.Select(pair => new ConfigurationFileMapping()
                    {
                        Key = pair.Key,
                        Value = pair.Value
                    }).ToList()
                }).ToList()
            },
            InstallationConfig = new InstallationConfig()
            {
                DockerImage = egg.Scripts.Installation.Container,
                Script = egg.Scripts.Installation.Script,
                Shell = egg.Scripts.Installation.Entrypoint
            },
            LifecycleConfig = new LifecycleConfig()
            {
                OnlineLogPatterns = egg.Config.Startup.Values.ToList(),
                StopCommand = egg.Config.Stop,
                StartupCommands = egg.StartupCommands.Select(x => new StartupCommand()
                {
                    DisplayName = x.Key,
                    Command = x.Value
                }).ToList()
            },
            MiscellaneousConfig = new MiscellaneousConfig()
            {
                UseLegacyStartup = true
            },
            Variables = egg.Variables.Select(variable => new TemplateVariable()
            {
                Description = variable.Description,
                DisplayName = variable.Name,
                DefaultValue = variable.DefaultValue,
                EnvName = variable.EnvVariable
            }).ToList()
        };

        var finalTemplate = await TemplateRepository.AddAsync(template);

        var isFirst = true;
        TemplateDockerImage? defaultDockerImage = null;

        foreach (var dockerImage in egg.DockerImages)
        {
            var finalDockerImage = await DockerImageRepository.AddAsync(new TemplateDockerImage()
            {
                DisplayName = dockerImage.Key,
                ImageName = dockerImage.Value,
                SkipPulling = false,
                Template = finalTemplate
            });

            if (isFirst)
            {
                isFirst = false;
                defaultDockerImage = finalDockerImage;
            }
        }

        finalTemplate.DefaultDockerImage = defaultDockerImage;

        await TemplateRepository.UpdateAsync(finalTemplate);

        return finalTemplate;
    }
}

[YamlObject]
public partial class Egg
{
    [YamlMember("_comment")] public string? Comment { get; set; }

    [YamlMember("meta")] public EggMeta Meta { get; set; } = new();

    [YamlMember("exported_at")] public string? ExportedAt { get; set; }

    [YamlMember("name")] public string Name { get; set; } = string.Empty;

    [YamlMember("author")] public string Author { get; set; } = string.Empty;

    [YamlMember("uuid")] public string Uuid { get; set; } = string.Empty;

    [YamlMember("description")] public string Description { get; set; } = string.Empty;

    [YamlMember("image")] public string? Image { get; set; }

    [YamlMember("tags")] public List<string> Tags { get; set; } = new();

    [YamlMember("features")] public List<string> Features { get; set; } = new();

    [YamlMember("docker_images")] public Dictionary<string, string> DockerImages { get; set; } = new();

    [YamlMember("file_denylist")] public Dictionary<string, string> FileDenylist { get; set; } = new();

    [YamlMember("startup_commands")] public Dictionary<string, string> StartupCommands { get; set; } = new();

    [YamlMember("config")] public EggConfig Config { get; set; } = new();

    [YamlMember("scripts")] public EggScripts Scripts { get; set; } = new();

    [YamlMember("variables")] public List<EggVariable> Variables { get; set; } = new();
}

[YamlObject]
public partial class EggMeta
{
    [YamlMember("version")] public string Version { get; set; } = string.Empty;

    [YamlMember("update_url")] public string? UpdateUrl { get; set; }
}

[YamlObject]
public partial class EggConfig
{
    [YamlMember("files")] public Dictionary<string, EggConfigFile> Files { get; set; } = new();

    [YamlMember("startup")] public Dictionary<string, string> Startup { get; set; } = new();

    [YamlMember("logs")] public Dictionary<string, string> Logs { get; set; } = new();

    [YamlMember("stop")] public string Stop { get; set; } = string.Empty;
}

[YamlObject]
public partial class EggConfigFile
{
    [YamlMember("parser")] public string Parser { get; set; } = string.Empty;

    [YamlMember("find")] public Dictionary<string, string> Find { get; set; } = new();
}

[YamlObject]
public partial class EggScripts
{
    [YamlMember("installation")] public EggInstallationScript Installation { get; set; } = new();
}

[YamlObject]
public partial class EggInstallationScript
{
    [YamlMember("script")] public string Script { get; set; } = string.Empty;

    [YamlMember("container")] public string Container { get; set; } = string.Empty;

    [YamlMember("entrypoint")] public string Entrypoint { get; set; } = string.Empty;
}

[YamlObject]
public partial class EggVariable
{
    [YamlMember("name")] public string Name { get; set; } = string.Empty;

    [YamlMember("description")] public string Description { get; set; } = string.Empty;

    [YamlMember("env_variable")] public string EnvVariable { get; set; } = string.Empty;

    [YamlMember("default_value")] public string DefaultValue { get; set; } = string.Empty;

    [YamlMember("user_viewable")] public bool UserViewable { get; set; }

    [YamlMember("user_editable")] public bool UserEditable { get; set; }

    [YamlMember("rules")] public List<string> Rules { get; set; } = new();

    [YamlMember("sort")] public int Sort { get; set; }
}