package com.nico.service;

import java.util.List;

import javax.transaction.Transactional;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import com.nico.dao.AccountMapper;
import com.nico.entities.Account;
import com.nico.entities.PagerEx;

@Component
@Path("/accounts")
public class AccountService {
	@Autowired
	private AccountMapper accountMapper;
	
	@GET
	@Produces({"application/json; charset=UTF-8","application/xml; charset=UTF-8"})
	public List<Account> getAccounts() {
		return accountMapper.getAccounts();
	}
	
	@GET 
//  @Path("/query")  @QueryParam
	@Path("{pageSize}/{pageIndex}")			// pageSize:每页记录数  pageIndex:当前页
	@Produces({"application/json; charset=UTF-8","application/xml; charset=UTF-8"})
	public List<Account> getAccountsByFilter(@DefaultValue("10") @PathParam("pageSize") int pageSize,@DefaultValue("1") @PathParam("pageIndex") int pageIndex) {
		int startIndex = (pageIndex-1)*pageSize; 	//开始l
		int endIndex = pageSize ;   				//条目数
		PagerEx pagerEx = new PagerEx();
		pagerEx.setPageIndex(startIndex);
		pagerEx.setPageSize(endIndex);
		return accountMapper.getAccountsByFilter(pagerEx);
	}
	
	@GET @Path("{accountID}")
	@Produces({"application/json; charset=UTF-8","application/xml; charset=UTF-8"})
	public Response getAccountByAccountID(@PathParam("accountID") String accountID) {
		Account account = accountMapper.getAccountByAccountID(accountID);
		if(account != null) {
			return Response.status(200).entity(account).build(); 
		} else {
			return Response.status(404).entity("The Account with the accountID " + accountID + " does not exist").build();
		}
	}
	
	@DELETE @Path("{accountID}")
	@Produces({MediaType.TEXT_HTML})
	@Transactional
	public Response deleteAccountByAccountID(@PathParam("accountID") String accountID) {
		if(accountMapper.deleteAccountByAccountID(accountID) == 1){
			return Response.status(204).build();
		} else {
			return Response.status(404).entity("Account with the AccountID " + accountID + " is not present in the database").build();
		}
	}
	
	@POST @Path("batch")
	@Consumes({"application/json; charset=UTF-8"})
	@Produces({MediaType.TEXT_HTML})
	@Transactional
	public Response deleteAccountsBatch(List<String> list) {
		int num = accountMapper.deleteAccountsBatch(list);
		if(num > 0) {
			return Response.status(204).entity("Has deleted "+num+" Accounts").build();
		}else {
			return Response.status(404).entity("Accounts deleted failed").build();
		}
		 	
	}
	
	@POST 
	@Consumes({"application/json; charset=UTF-8"})
	@Produces({MediaType.TEXT_HTML})	
	@Transactional
	public Response createAccount(Account account) {
		int flag = accountMapper.createAccount(account);
		if(flag > 0){
			return Response.status(201).entity("A new Account/Resource has been created").build(); 		
		}else {
			return Response.status(406).entity("A new Account/Resource create failed").build(); 		
		}
	}
	
	
	@PUT
	@Consumes({"application/json; charset=UTF-8"})
	@Produces({MediaType.TEXT_HTML})	
	@Transactional
	public Response updateAccount(Account account) {
		String message; 
		int status; 
		if(accountWasUpdated(account)){
			status = 200; 		//OK
			message = "Account has been updated";
		} else {
			status = 406; 		//Not acceptable
			message = "The information you provided is not sufficient to perform either an UPDATE or "
					+ " an INSERTION of the new hospital resource <br/>"
					+ " If you want to UPDATE please make sure you provide an existent <strong>id</strong> <br/>"
					+ " If you want to insert a new hospital please provide at least a <strong>title</strong> and the <strong>feed</strong> for the hospital resource";
		}
		return Response.status(status).entity(message).build();		
	}
	
	private boolean accountWasUpdated(Account account) {
		return accountMapper.updateAccountByAccountID(account)== 1;
	}

}