package org.linlinjava.litemall.admin.web;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.linlinjava.litemall.admin.annotation.LoginAdmin;
import org.linlinjava.litemall.core.validator.Order;
import org.linlinjava.litemall.core.validator.Sort;
import org.linlinjava.litemall.db.domain.LitemallIssue;
import org.linlinjava.litemall.db.service.LitemallIssueService;
import org.linlinjava.litemall.core.util.ResponseUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import javax.validation.constraints.NotNull;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("/admin/issue")
@Validated
public class AdminIssueController {
    private final Log logger = LogFactory.getLog(AdminIssueController.class);

    @Autowired
    private LitemallIssueService issueService;

    @GetMapping("/list")
    public Object list(@LoginAdmin Integer adminId,
                       String question,
                       @RequestParam(defaultValue = "1") Integer page,
                       @RequestParam(defaultValue = "10") Integer limit,
                       @Sort @RequestParam(defaultValue = "add_time") String sort,
                       @Order @RequestParam(defaultValue = "desc") String order){
        if(adminId == null){
            return ResponseUtil.unlogin();
        }

        List<LitemallIssue> issueList = issueService.querySelective(question, page, limit, sort, order);
        int total = issueService.countSelective(question, page, limit, sort, order);
        Map<String, Object> data = new HashMap<>();
        data.put("total", total);
        data.put("items", issueList);

        return ResponseUtil.ok(data);
    }

    private Object validate(LitemallIssue issue) {
        String question = issue.getQuestion();
        if(StringUtils.isEmpty(question)){
            return ResponseUtil.badArgument();
        }
        String answer = issue.getAnswer();
        if(StringUtils.isEmpty(answer)){
            return ResponseUtil.badArgument();
        }
        return null;
    }

    @PostMapping("/create")
    public Object create(@LoginAdmin Integer adminId, @RequestBody LitemallIssue issue){
        if(adminId == null){
            return ResponseUtil.unlogin();
        }
        Object error = validate(issue);
        if(error != null){
            return error;
        }
        issue.setAddTime(LocalDateTime.now());
        issueService.add(issue);
        return ResponseUtil.ok(issue);
    }

    @GetMapping("/read")
    public Object read(@LoginAdmin Integer adminId, @NotNull Integer id){
        if(adminId == null){
            return ResponseUtil.unlogin();
        }

        LitemallIssue issue = issueService.findById(id);
        return ResponseUtil.ok(issue);
    }

    @PostMapping("/update")
    public Object update(@LoginAdmin Integer adminId, @RequestBody LitemallIssue issue){
        if(adminId == null){
            return ResponseUtil.unlogin();
        }
        Object error = validate(issue);
        if(error != null){
            return error;
        }
        if(issueService.updateById(issue) == 0){
            return ResponseUtil.updatedDateExpired();
        }

        return ResponseUtil.ok(issue);
    }

    @PostMapping("/delete")
    public Object delete(@LoginAdmin Integer adminId, @RequestBody LitemallIssue issue){
        if(adminId == null){
            return ResponseUtil.unlogin();
        }
        Integer id = issue.getId();
        if(id == null){
            return ResponseUtil.badArgument();
        }
        issueService.deleteById(id);
        return ResponseUtil.ok();
    }

}
