using System.Collections.Generic;

namespace Amanotes
{
    internal static class CommonPackagesRegistry
    {
        internal enum InstallType
        {
            /// <summary>Install by name from Unity Registry (e.g. "3.2.1")</summary>
            UnityRegistry,
            /// <summary>Install via git URL in manifest</summary>
            GitUrl,
            /// <summary>Install by name from a scoped registry (npm, OpenUPM, etc.)</summary>
            ScopedRegistry,
        }

        internal struct ScopedRegistryInfo
        {
            public string registryName;
            public string url;
            public string scope;
            /// <summary>Short label shown as a tag in the UI (e.g. "NPM", "OpenUPM")</summary>
            public string tag;
        }

        internal struct Entry
        {
            public string name;
            public string displayName;
            public InstallType installType;
            /// <summary>
            /// Git URL (for GitUrl type) or empty/null for registry types.
            /// </summary>
            public string installRef;
            /// <summary>
            /// Scoped registry required for ScopedRegistry install type. Null for others.
            /// </summary>
            public ScopedRegistryInfo? scopedRegistry;
            /// <summary>
            /// Extra dependencies to inject into manifest alongside this package
            /// (workaround for packages that don't declare all their deps).
            /// Each entry is "packageName": "version".
            /// </summary>
            public string[][] requiredDeps;
        }

        // ── Scoped registries ──────────────────────────────────────────

        private static readonly ScopedRegistryInfo NpmJs = new ScopedRegistryInfo
        {
            registryName = "npmjs",
            url = "https://registry.npmjs.org",
            tag = "NPM",
        };

        private static readonly ScopedRegistryInfo AmanotesGitLab = new ScopedRegistryInfo
        {
            registryName = "Amanotes GitLab",
            url = "https://gitlab.amanotes.net/api/v4/projects/592/packages/npm/",
            tag = "GitLab",
        };

        private static readonly ScopedRegistryInfo OpenUPM = new ScopedRegistryInfo
        {
            registryName = "OpenUPM",
            url = "https://package.openupm.com",
            tag = "OpenUPM",
        };

        // ── Package list ───────────────────────────────────────────────

        internal static readonly List<Entry> Packages = new List<Entry>
        {
            // ── Git URL packages ────────────────────────────────────
            new Entry
            {
                name = "com.cysharp.unitask", displayName = "UniTask",
                installType = InstallType.GitUrl,
                installRef = "https://github.com/Cysharp/UniTask.git?path=src/UniTask/Assets/Plugins/UniTask",
            },
            new Entry
            {
                name = "com.coplaydev.unity-mcp", displayName = "MCP for Unity",
                installType = InstallType.GitUrl,
                installRef = "https://github.com/CoplayDev/unity-mcp.git?path=/MCPForUnity#main",
                requiredDeps = new[] { new[] { "com.unity.modules.imageconversion", "1.0.0" } },
            },
            new Entry
            {
                name = "com.boxqkrtm.ide.cursor", displayName = "Cursor IDE",
                installType = InstallType.GitUrl,
                installRef = "https://github.com/boxqkrtm/com.unity.ide.cursor.git",
            },
            new Entry
            {
                name = "com.annulusgames.lit-motion", displayName = "LitMotion",
                installType = InstallType.GitUrl,
                installRef = "https://github.com/annulusgames/LitMotion.git?path=src/LitMotion/Assets/LitMotion",
            },

            // ── OpenUPM packages (scope: com.coffee) ──────────────────
            new Entry
            {
                name = "com.coffee.ui-effect", displayName = "UI Effect",
                installType = InstallType.ScopedRegistry,
                scopedRegistry = WithScope(OpenUPM, "com.coffee"),
            },
            new Entry
            {
                name = "com.coffee.ui-particle", displayName = "UI Particle",
                installType = InstallType.ScopedRegistry,
                scopedRegistry = WithScope(OpenUPM, "com.coffee"),
            },
            new Entry
            {
                name = "com.coffee.softmask-for-ugui", displayName = "Soft Mask",
                installType = InstallType.ScopedRegistry,
                scopedRegistry = WithScope(OpenUPM, "com.coffee"),
            },
            // ── OpenUPM packages (scope: com.google) ──────────────────
            new Entry
            {
                name = "com.google.external-dependency-manager", displayName = "External Dependency Manager",
                installType = InstallType.ScopedRegistry,
                scopedRegistry = WithScope(OpenUPM, "com.google.external-dependency-manager"),
            },

            // ── NPM packages (scope: co.balancy) ──────────────────────
            new Entry
            {
                name = "co.balancy.unity", displayName = "Balancy",
                installType = InstallType.ScopedRegistry,
                scopedRegistry = WithScope(NpmJs, "co.balancy"),
            },

            // ── NPM packages (scope: com.amanotes) ────────────────────
            new Entry
            {
                name = "com.amanotes.gdk", displayName = "Amanotes GDK",
                installType = InstallType.ScopedRegistry,
                scopedRegistry = WithScope(NpmJs, "com.amanotes"),
                requiredDeps = new[]
                {
                    new[] { "com.unity.modules.unitywebrequest", "1.0.0" },
                    new[] { "com.unity.modules.ui", "1.0.0" },
                    new[] { "com.unity.modules.imgui", "1.0.0" },
                    new[] { "com.unity.modules.androidjni", "1.0.0" },
                    new[] { "com.unity.modules.audio", "1.0.0" },
                    new[] { "com.unity.ugui", "1.0.0" },
                    new[] { "com.cysharp.unitask", "https://github.com/Cysharp/UniTask.git?path=src/UniTask/Assets/Plugins/UniTask" },
                },
            },
            new Entry
            {
                name = "com.amanotes.magictilescore", displayName = "Magic Tiles Core",
                installType = InstallType.ScopedRegistry,
                scopedRegistry = WithScope(AmanotesGitLab, "com.amanotes.magictilescore"),
            },
            new Entry
            {
                name = "com.amanotes.orchestra", displayName = "Orchestra",
                installType = InstallType.ScopedRegistry,
                scopedRegistry = WithScope(NpmJs, "com.amanotes"),
            },

            // ── Unity Registry packages ────────────────────────────────
            new Entry
            {
                name = "com.unity.nuget.newtonsoft-json", displayName = "Newtonsoft Json",
                installType = InstallType.UnityRegistry,
            },
        };

        /// <summary>Clone a registry info with a specific scope.</summary>
        private static ScopedRegistryInfo WithScope(ScopedRegistryInfo template, string scope)
        {
            return new ScopedRegistryInfo
            {
                registryName = template.registryName,
                url = template.url,
                scope = scope,
                tag = template.tag,
            };
        }
    }
}