using System;
using System.Collections.Generic;
using System.Reflection;

namespace SMAPI.Tests.ModApiProvider.Framework
{
    /// <summary>A mod-provided API which provides basic events, properties, and methods.</summary>
    public class SimpleApi : BaseApi
    {
        /*********
        ** Test interface
        *********/
        /****
        ** Events
        ****/
        /// <summary>A simple event field.</summary>
        public event EventHandler<int> OnEventRaised;

        /// <summary>A simple event property with custom add/remove logic.</summary>
        public event EventHandler<int> OnEventRaisedProperty
        {
            add => this.OnEventRaised += value;
            remove => this.OnEventRaised -= value;
        }


        /****
        ** Properties
        ****/
        /// <summary>A simple numeric property.</summary>
        public int NumberProperty { get; set; }

        /// <summary>A simple object property.</summary>
        public object ObjectProperty { get; set; }

        /// <summary>A simple list property.</summary>
        public List<string> ListProperty { get; set; }

        /// <summary>A simple list property with an interface.</summary>
        public IList<string> ListPropertyWithInterface { get; set; }

        /// <summary>A property with nested generics.</summary>
        public IDictionary<string, IList<string>> GenericsProperty { get; set; }

        /// <summary>A property using an enum available to both mods.</summary>
        public BindingFlags EnumProperty { get; set; }

        /// <summary>A read-only property.</summary>
        public int GetterProperty => 42;


        /****
        ** Methods
        ****/
        /// <summary>A simple method with no return value.</summary>
        public void GetNothing() { }

        /// <summary>A simple method which returns a number.</summary>
        public int GetInt(int value)
        {
            return value;
        }

        /// <summary>A simple method which returns an object.</summary>
        public object GetObject(object value)
        {
            return value;
        }

        /// <summary>A simple method which returns a list.</summary>
        public List<string> GetList(string value)
        {
            return new() { value };
        }

        /// <summary>A simple method which returns a list with an interface.</summary>
        public IList<string> GetListWithInterface(string value)
        {
            return new List<string> { value };
        }

        /// <summary>A simple method which returns nested generics.</summary>
        public IDictionary<string, IList<string>> GetGenerics(string key, string value)
        {
            return new Dictionary<string, IList<string>>
            {
                [key] = new List<string> { value }
            };
        }

        /// <summary>A simple method which returns a lambda.</summary>
        public Func<string, string> GetLambda(Func<string, string> value)
        {
            return value;
        }


        /*********
        ** Helper methods
        *********/
        /// <summary>Raise the <see cref="OnEventRaised"/> event.</summary>
        /// <param name="value">The value to pass to the event.</param>
        public void RaiseEventField(int value)
        {
            this.OnEventRaised?.Invoke(null, value);
        }
    }
}