package com.atguigu.sssp.handler;

import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import com.atguigu.sssp.entity.Employee;
import com.atguigu.sssp.service.DepartmentService;
import com.atguigu.sssp.service.EmployeeService;

@Controller
public class EmployeeHandler {

	@Autowired
	private EmployeeService employeeService;
	
	@Autowired
	private DepartmentService departmentService;

	@RequestMapping(value="/emp/{id}",method=RequestMethod.DELETE)
	public String delete(@PathVariable("id") Integer id){
		employeeService.delete(id);
		return "redirect:/emps";
	}
	
	@ModelAttribute
	public void getEmployee(@RequestParam(value="id",required=false) Integer id,
			Map<String, Object> map){
		if(id != null){
			Employee employee = employeeService.get(id);
			employee.setDepartment(null);
			map.put("employee", employee);
		}
	}
	
	@RequestMapping(value="/emp/{id}",method=RequestMethod.PUT)
	public String update(Employee employee){
		employeeService.save(employee);
		return "redirect:/emps";
	}
	
	@RequestMapping(value="/emp/{id}", method=RequestMethod.GET)
	public String input(@PathVariable("id") Integer id, Map<String, Object> map){
		Employee employee = employeeService.get(id);
		map.put("employee", employee);
		map.put("departments", departmentService.getAll());
		return "emp/input";
	}
	
	@RequestMapping(value="/emp",method=RequestMethod.POST)
	public String save(Employee employee){
		employeeService.save(employee);
		return "redirect:/emps";
	}
	
	@ResponseBody
	@RequestMapping(value="/ajaxValidateLastName",method=RequestMethod.POST)
	public String validateLastName(@RequestParam(value="lastName",required=true) String lastName){
		Employee employee = employeeService.getByLastName(lastName);
		if(employee == null){
			return "0";
		}else{
			return "1";
		}
	}
	
	@RequestMapping(value="/emp",method=RequestMethod.GET)
	public String input(Map<String,Object> map){
		map.put("departments", departmentService.getAll());
		map.put("employee", new Employee());
		return "emp/input";
	}
	
	@RequestMapping("/emps")
	public String list(@RequestParam(value="pageNo", required=false, defaultValue="1") String pageNoStr, 
			Map<String, Object> map){
		int pageNo = 1;
		
		try {
			//对 pageNo 的校验
			pageNo = Integer.parseInt(pageNoStr);
			if(pageNo < 1){
				pageNo = 1;
			}
		} catch (Exception e) {}
		
		Page<Employee> page = employeeService.getPage(pageNo, 5);
		map.put("page", page);
		
		return "emp/list";
	}
	
}