using Sarand.Net.Standard.Base.App;
using Sarand.Net.Standard.Base.Bus;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Utils;
using Saxonite.Net.Standard.Base.App;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Mail;
using System.Text;
using System.Xml.Linq;

namespace Saxonite.Net.Standard.Base.Bus
{
	//=======================================================================
	// Contact data - associated with Organisations, Users etc.
	//=======================================================================
	public class SaxSportContactsData
	{
		//-------------------------------------------------------------------
		// Definitions.
		private static readonly String ElementName_Contacts = "Contacts";
		private static readonly String ElementName_Contact = "Contact";
		private static readonly String AttributeName_Type = "Type";
		private static readonly String ElementName_Type = "Type";
		private static readonly String ElementName_UserAccountId = "UserAccountId";
		private static readonly String ElementName_Title = "Title";
		private static readonly String ElementName_FirstName = "FirstName";
		private static readonly String ElementName_LastName = "LastName";
		private static readonly String ElementName_Phone = "Phone";
		private static readonly String ElementName_EmailAddress = "EmailAddress";

		//-------------------------------------------------------------------
		// Data members.
		private class ContactData
		{
			public Sax.SportContactType ContactType { get; set; }
			public SysId UserAccountId { get; set; }
			public String Title { get; set; }
			public String FirstName { get; set; }
			public String LastName { get; set; }
			public String EmailAddress { get; set; }
			public String Phone { get; set; }
		}
		private Dictionary<Sax.SportContactType, ContactData> contacts { get; } = new Dictionary<Sax.SportContactType, ContactData>();

		//-------------------------------------------------------------------
		// Construction - from serialised data.
		public SaxSportContactsData(String contactsData = "")
		{
			FromXml(contactsData);
		}

		//-------------------------------------------------------------------
		// Properties.
		public List<Sax.SportContactType> ContactTypes { get { return contacts.Keys.ToList(); } }

		//-------------------------------------------------------------------
		// Utilities.

		/// <summary>Get the contact for the specified type.</summary>
		private ContactData GetContactData(Sax.SportContactType contactType)
		{
			if ((int)contactType < 1) return null;
			ContactData contact = contacts.GetValueOrDefault(contactType, null);
			if (contact == null)
				contacts.Add(contactType, contact = new ContactData() { ContactType = contactType });
			return contact;
		}

		//-------------------------------------------------------------------
		// Contacts.
		//-------------------------------------------------------------------
		/// <summary>Extract the title associated with the specified type.</summary>
		public String GetContactTitle(Sax.SportContactType contactType)
		{
			return contacts.GetValueOrDefault(contactType, new ContactData()).Title;
		}

		/// <summary>Extract the first name associated with the specified type.</summary>
		public String GetContactFirstName(Sax.SportContactType contactType)
		{
			return contacts.GetValueOrDefault(contactType, new ContactData()).FirstName;
		}

		/// <summary>Extract the last name associated with the specified type.</summary>
		public String GetContactLastName(Sax.SportContactType contactType)
		{
			return contacts.GetValueOrDefault(contactType, new ContactData()).LastName;
		}

		/// <summary>Extract the email address associated with the specified type.</summary>
		public String GetContactEmailAddress(Sax.SportContactType contactType)
		{
			return contacts.GetValueOrDefault(contactType, new ContactData()).EmailAddress;
		}

		/// <summary>Extract the phone associated with the specified type.</summary>
		public String GetContactPhone(Sax.SportContactType contactType)
		{
			return contacts.GetValueOrDefault(contactType, new ContactData()).Phone;
		}

		/// <summary>Set the name associated with the specified contact.</summary>
		public bool SetContactName(Sax.SportContactType contactType, String title, String firstName, String lastName)
		{
			if ((int)contactType < 1 || lastName.IsEmpty()) return false;
			ContactData contact = GetContactData(contactType);
			if (contact == null) return false;
			contact.Title = title;
			contact.FirstName = firstName;
			contact.LastName = lastName;
			return true;
		}

		/// <summary>Set the email address associated with the specified contact.</summary>
		public bool SetContactEmailAddress(Sax.SportContactType contactType, String emailAddress)
		{
			if ((int)contactType < 1 || emailAddress.IsEmpty()) return false;
			ContactData contact = GetContactData(contactType);
			if (contact == null) return false;
			contact.EmailAddress = emailAddress;
			return true;
		}

		/// <summary>Set the phone associated with the specified contact.</summary>
		public bool SetContactPhone(Sax.SportContactType contactType, String phone)
		{
			if ((int)contactType < 1 || phone.IsEmpty()) return false;
			ContactData contact = GetContactData(contactType);
			if (contact == null) return false;
			contact.Phone = phone;
			return true;
		}

		//-------------------------------------------------------------------
		/// <summary>Clear the value associated with the specified method.</summary>
		public bool ClearContact(Sax.SportContactType contactType)
		{
			return contacts.Remove(contactType);
		}

		/// <summary>Clear all contact methods.</summary>
		public void ClearContacts()
		{
			contacts.Clear();
		}

		//-------------------------------------------------------------------
		// Serialisation.
		//-------------------------------------------------------------------
		/// <summary>Serialise as XML.</summary>
		public String ToXml()
		{
			try
			{
				XDocument doc = new XDocument();
				XElement contactsElement = doc.AppendElement(ElementName_Contacts);
				foreach (ContactData contactData in contacts.Values)
				{
					if ((int)contactData.ContactType < 1 || (!SysId.IsValid(contactData.UserAccountId) && StringUtil.IsBlank(contactData.LastName))) continue;
					XElement contactElement = contactsElement.AppendElement(ElementName_Contact);
					contactElement.SetAttribute(AttributeName_Type, ((int)contactData.ContactType).ToString());
					contactElement.AppendElement(ElementName_Type, contactData.ContactType.ToString());
					if (!StringUtil.IsBlank(contactData.Title))
						contactElement.AppendElement(ElementName_Title, contactData.Title);
					if (!StringUtil.IsBlank(contactData.FirstName))
						contactElement.AppendElement(ElementName_FirstName, contactData.FirstName);
					if (!StringUtil.IsBlank(contactData.LastName))
						contactElement.AppendElement(ElementName_LastName, contactData.LastName);
					if (!StringUtil.IsBlank(contactData.EmailAddress))
						contactElement.AppendElement(ElementName_EmailAddress, contactData.EmailAddress);
					if (!StringUtil.IsBlank(contactData.Phone))
						contactElement.AppendElement(ElementName_Phone, contactData.Phone);
				}
				return doc.GetXml();
			}
			catch (Exception exc)
			{
				SaLogger.Warn($"{SysUtil.Fn} " + ExceptionUtil.GetLogMessage(exc));
			}
			return "";
		}

		//-------------------------------------------------------------------
		/// <summary>Deserialise from XML data.</summary>
		private void FromXml(String contactsData)
		{
			contacts.Clear();
			if (StringUtil.IsEmpty(contactsData)) return;

			try
			{
				// Load XML data.
				XDocument doc = XDocument.Parse(contactsData);
				XElement rootElement = doc.Root;
				foreach (XElement rootChildElement in rootElement.GetChildElements())
				{
					String rootChildElementName = rootChildElement.GetLocalName();
					if (rootChildElementName.EqualsCI(ElementName_Contact))
					{
						// Contact.
						String contactTypeValue = rootChildElement.GetChildText(ElementName_Type);
						Sax.SportContactType contactType = EnumUtil.ParseEnum(contactTypeValue, Sax.SportContactType.Unknown);
						if (contactType != Sax.SportContactType.Unknown)
						{
							ContactData contactData = new ContactData()
							{
								ContactType = contactType,
								UserAccountId = SysId.ToSysId(rootChildElement.GetChildText(ElementName_UserAccountId)),
								Title = rootChildElement.GetChildText(ElementName_Title),
								FirstName = rootChildElement.GetChildText(ElementName_FirstName),
								LastName = rootChildElement.GetChildText(ElementName_LastName),
								EmailAddress = rootChildElement.GetChildText(ElementName_EmailAddress),
								Phone = rootChildElement.GetChildText(ElementName_Phone),
							};
							contacts.Add(contactType, contactData);
						}
						else SaLogger.Warn($"{SysUtil.Fn} Unrecognised contact type: " + contactType);
					}
					else SaLogger.Warn($"{SysUtil.Fn} Unexpected 'Root' child element: " + rootChildElementName);
				}
			}
			catch (Exception exc)
			{
				SaLogger.Warn($"{SysUtil.Fn} " + ExceptionUtil.GetLogMessage(exc));
			}
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
}