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using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using static System.Collections.Specialized.BitVector32;
namespace Apewer.Models
{
/// <summary>INI 节。</summary>
[Serializable]
public sealed class IniSection : ICollection<TextField>, IEnumerable<TextField>, IToJson
{
private List<TextField> _fields = new List<TextField>();
/// <summary>节的名称(不含方括号)。</summary>
public string Name { get; set; }
/// <summary></summary>
public override string ToString() => $"Name = \"{Name}\", Count = {_fields.Count}";
#region ICollection<TextField>
/// <summary></summary>
public int Count { get => _fields.Count; }
/// <summary>集合是只读的。</summary>
/// <value>此值始终为 FALSE。</value>
public bool IsReadOnly { get => false; }
/// <summary>添加字段。</summary>
/// <exception cref="ArgumentNullException" />
public void Add(TextField item)
{
if (item == null) throw new ArgumentNullException(nameof(item));
_fields.Add(item);
}
/// <summary>清空字段。</summary>
public void Clear() => _fields.Clear();
/// <summary>检查此集合是否包含指定的字段。</summary>
public bool Contains(TextField item) => _fields.Contains(item);
/// <summary>复制字段到数组中。</summary>
/// <exception cref="ArgumentException" />
/// <exception cref="ArgumentNullException" />
/// <exception cref="ArgumentOutOfRangeException" />
public void CopyTo(TextField[] array, int arrayIndex)
{
if (array == null) throw new ArgumentNullException(nameof(array));
if (arrayIndex < 0) throw new ArgumentOutOfRangeException(nameof(arrayIndex));
if (array.Length - arrayIndex < _fields.Count) throw new ArgumentException("目标数组长度不足。");
_fields.CopyTo(array, arrayIndex);
}
/// <summary>移除字段。</summary>
public bool Remove(TextField item)
{
var removed = false;
while (_fields.Contains(item))
{
_fields.Remove(item);
removed = true;
}
return removed;
}
#endregion
#region Enumerable
/// <summary></summary>
public IEnumerator<TextField> GetEnumerator() => new Enumerator<TextField>(i => i < _fields.Count ? new Class<TextField>(_fields[i]) : null);
/// <summary></summary>
IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
#endregion
#region IToJson
/// <summary></summary>
public Json ToJson()
{
var fields = Json.NewObject();
foreach (var field in _fields)
{
fields.SetProperty(field.Name, field.Value);
}
var json = Json.NewObject();
json.SetProperty("name", Name);
json.SetProperty("fields", fields);
return json;
}
#endregion
/// <summary>检查此集合是否包含指定的字段。</summary>
/// <param name="name">字段名称。</param>
public bool Contains(string name)
{
var count = _fields.Count;
for (var i = 0; i < count; i++)
{
if (_fields[0].Name == name) return true;
}
return false;
}
/// <summary>获取字段。</summary>
/// <exception cref="ArgumentOutOfRangeException" />"
public TextField GetField(int index)
{
if (index < 0 || index >= _fields.Count) throw new ArgumentOutOfRangeException(nameof(index));
return _fields[index];
}
/// <summary></summary>
public string GetValue(string name)
{
if (name.IsEmpty()) throw new ArgumentNullException(nameof(name));
foreach (var field in _fields)
{
if (field.Name == name) return field.Value;
}
return null;
}
/// <summary></summary>
public void SetValue(string name, string value)
{
if (name.IsEmpty()) throw new ArgumentNullException(nameof(name));
var count = _fields.Count;
var setted = false;
for (var i = 0; i < count; i++)
{
if (_fields[i].Name == name)
{
_fields[i].Value = value;
setted = true;
}
}
if (!setted)
{
var field = new TextField(name, value);
_fields.Add(field);
}
}
/// <summary>获取或设置字段。</summary>
public string this[string name] { get => GetValue(name); set => SetValue(name, value); }
/// <summary></summary>
public IniSection() { }
/// <summary></summary>
public IniSection(string name) : this()
{
this.Name = name;
}
/// <summary></summary>
/// <exception cref="ArgumentNullException" />
public IniSection(string name, IEnumerable<TextField> fields) : this(name)
{
if (fields == null) throw new ArgumentNullException(nameof(fields));
_fields.AddRange(fields.Map(x => x == null ? null : new TextField(x.Name, x.Value)).FindAll(x => x != null));
}
/// <summary></summary>
/// <exception cref="ArgumentNullException" />
public IniSection(IEnumerable<TextField> fields) : this(null, fields) { }
/// <summary></summary>
/// <exception cref="ArgumentNullException" />
public IniSection(string name, IEnumerable<KeyValuePair<string, string>> fields) : this(name)
{
if (fields == null) throw new ArgumentNullException(nameof(fields));
_fields.AddRange(fields.Map(x => new TextField(x)));
}
/// <summary></summary>
/// <exception cref="ArgumentNullException" />
public IniSection(IEnumerable<KeyValuePair<string, string>> fields) : this(null, fields) { }
}
}