using System.Collections.Concurrent;
using Microsoft.CodeAnalysis;
using static Microsoft.CodeAnalysis.DiagnosticSeverity;
using static Spectre.Console.Analyzer.Descriptors.Category;

namespace Spectre.Console.Analyzer
{
    /// <summary>
    /// Code analysis descriptors.
    /// </summary>
    public static class Descriptors
    {
        internal enum Category
        {
            Usage, // 1xxx
        }

        private static readonly ConcurrentDictionary<Category, string> _categoryMapping = new();

        private static DiagnosticDescriptor Rule(string id, string title, Category category, DiagnosticSeverity defaultSeverity, string messageFormat, string? description = null)
        {
            var helpLink = $"https://spectreconsole.net/spectre.console.analyzers/rules/{id}";
            const bool IsEnabledByDefault = true;
            return new DiagnosticDescriptor(id, title, messageFormat, _categoryMapping.GetOrAdd(category, c => c.ToString()), defaultSeverity, IsEnabledByDefault, description, helpLink);
        }

        /// <summary>
        /// Gets definitions of diagnostics Spectre1000.
        /// </summary>
        public static DiagnosticDescriptor S1000_UseAnsiConsoleOverSystemConsole { get; } =
            Rule(
                "Spectre1000",
                "Use AnsiConsole instead of System.Console",
                Usage,
                Warning,
                "Use AnsiConsole instead of System.Console");

        /// <summary>
        /// Gets definitions of diagnostics Spectre1010.
        /// </summary>
        public static DiagnosticDescriptor S1010_FavorInstanceAnsiConsoleOverStatic { get; } =
            Rule(
                "Spectre1010",
                "Favor the use of the instance of AnsiConsole over the static helper.",
                Usage,
                Info,
                "Favor the use of the instance of AnsiConsole over the static helper.");

        /// <summary>
        /// Gets definitions of diagnostics Spectre1020.
        /// </summary>
        public static DiagnosticDescriptor S1020_AvoidConcurrentCallsToMultipleLiveRenderables { get; } =
            Rule(
                "Spectre1020",
                "Avoid calling other live renderables while a current renderable is running.",
                Usage,
                Warning,
                "Avoid calling other live renderables while a current renderable is running.");

        /// <summary>
        /// Gets definitions of diagnostics Spectre1020.
        /// </summary>
        public static DiagnosticDescriptor S1021_AvoidPromptCallsDuringLiveRenderables { get; } =
            Rule(
                "Spectre1021",
                "Avoid prompting for input while a current renderable is running.",
                Usage,
                Warning,
                "Avoid prompting for input while a current renderable is running.");
    }
}