#nullable enable

using System.Collections.Generic;
using System.Linq;
using ShrinkCommand.Integration.App;
using ShrinkCommand.Integration;
using ShrinkContext.AppAdapter;
using ShrinkDataSaver.Integration.App;
using ShrinkDataSaver.Integration;
using ShrinkNetwork.Integration.App;
using ShrinkNetwork.Integration;
using UnityEngine;

namespace ShrinkApp.Starter.Basic
{
    /// <summary>
    /// Basic Starter 的组合根：ContextLoader 模式下默认使用原生 Cordis 组件，
    /// 不再把三个功能模块交给 IShrinkAppModuleInstaller 包装器执行。
    /// </summary>
    public static class ShrinkAppBasicContextComposition
    {
        private static readonly string[] DefaultModuleIdValues =
        {
            "shrink.network",
            "shrink.command",
            "shrink.datasaver",
            "shrink.integration.command-network",
            "shrink.integration.command-eventbus",
            "shrink.integration.datasaver-eventbus",
            "shrink.integration.network-eventbus"
        };

        public static IReadOnlyList<string> DefaultModuleIds => DefaultModuleIdValues;

        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
        private static void RegisterDefaultComposition()
        {
            ShrinkAppLoaderBootstrapper.DefaultComposition = Configure;
        }

        public static void Configure(ShrinkAppLoaderHost host)
        {
            if (host == null)
                throw new System.ArgumentNullException(nameof(host));

            RegisterOrReplace(host, "shrink.network", static () => new ShrinkNetworkAppComponent());
            RegisterOrReplace(host, "shrink.command", static () => new ShrinkCommandAppComponent());
            RegisterOrReplace(host, "shrink.datasaver", static () => new ShrinkDataSaverAppComponent());
            host.AddModuleComponent("shrink.integration.command-network",
                static () => new ShrinkCommandNetworkIntegrationComponent());
            host.AddModuleComponent("shrink.integration.command-eventbus",
                static () => new ShrinkCommandEventBusComponent());
            host.AddModuleComponent("shrink.integration.datasaver-eventbus",
                static () => new ShrinkDataSaverEventBusComponent());
            host.AddModuleComponent("shrink.integration.network-eventbus",
                static () => new ShrinkNetworkEventBusComponent());
        }

        private static void RegisterOrReplace(
            ShrinkAppLoaderHost host,
            string moduleId,
            System.Func<ShrinkContext.IShrinkComponent> componentFactory)
        {
            if (host.ModuleIds.Any(id => string.Equals(id, moduleId, System.StringComparison.OrdinalIgnoreCase)))
                host.OverrideModuleComponent(moduleId, componentFactory);
            else
                host.AddModuleComponent(moduleId, componentFactory);
        }

        public static ShrinkAppCompositionDocument CreateDefaultDocument()
        {
            var entries = new List<ShrinkAppCompositionEntry>(DefaultModuleIdValues.Length);
            foreach (var moduleId in DefaultModuleIdValues)
                entries.Add(new ShrinkAppCompositionEntry(moduleId));
            return new ShrinkAppCompositionDocument(includeUnlistedEntries: false, entries);
        }
    }
}