using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Tango.CodeGeneration
{
    /// <summary>
    /// Represents a method code object.
    /// </summary>
    /// <seealso cref="Tango.CodeGeneration.CodeObject" />
    public class Method : CodeObject
    {
        /// <summary>
        /// Gets or sets the method name.
        /// </summary>
        public String Name { get; set; }

        /// <summary>
        /// Gets or sets the method arguments.
        /// </summary>
        public List<KeyValuePair<String, String>> Arguments { get; set; }

        /// <summary>
        /// Gets or sets the method return type.
        /// </summary>
        public String ReturnType { get; set; }

        /// <summary>
        /// Gets or sets the method modifier.
        /// </summary>
        public MethodModifier MethodModifier { get; set; }

        /// <summary>
        /// Gets or sets the method content.
        /// </summary>
        public String Content { get; set; }

        /// <summary>
        /// Initializes a new instance of the <see cref="Method"/> class.
        /// </summary>
        public Method()
            : base()
        {
            Name = "MyMethod";
            Arguments = new List<KeyValuePair<string, string>>();
            ReturnType = "void";
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="Method"/> class.
        /// </summary>
        /// <param name="name">The name.</param>
        /// <param name="returnType">Type of the return.</param>
        /// <param name="content">The content.</param>
        /// <param name="methodModifier">The method modifier.</param>
        public Method(String name, String returnType, String content, MethodModifier methodModifier = Tango.CodeGeneration.MethodModifier.None)
            : this()
        {
            Name = name;
            ReturnType = returnType;
            Content = content;
            MethodModifier = methodModifier;
        }

        /// <summary>
        /// Gets the arguments string.
        /// </summary>
        /// <returns></returns>
        public String GetArgumentsString()
        {
            if (Arguments.Count > 0)
            {
                return String.Join(", ", Arguments.Select(x => x.Key + " " + x.Value).ToList());
            }
            else
            {
                return String.Empty;
            }
        }
    }
}