package com.zy.acs.manager.manager.controller;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.zy.acs.common.utils.GsonUtils;
import com.zy.acs.common.utils.QrCodeCodecSupport;
import com.zy.acs.framework.common.Cools;
import com.zy.acs.framework.common.R;
import com.zy.acs.framework.exception.CoolException;
import com.zy.acs.manager.common.annotation.OperationLog;
import com.zy.acs.manager.common.domain.BaseParam;
import com.zy.acs.manager.common.domain.KeyValVo;
import com.zy.acs.manager.common.domain.PageParam;
import com.zy.acs.manager.common.utils.ExcelUtil;
import com.zy.acs.manager.manager.entity.Code;
import com.zy.acs.manager.manager.entity.CodeGap;
import com.zy.acs.manager.manager.entity.FuncSta;
import com.zy.acs.manager.manager.entity.Route;
import com.zy.acs.manager.manager.enums.StatusType;
import com.zy.acs.manager.manager.service.CodeGapService;
import com.zy.acs.manager.manager.service.CodeService;
import com.zy.acs.manager.manager.service.FuncStaService;
import com.zy.acs.manager.manager.service.RouteService;
import com.zy.acs.manager.system.controller.BaseController;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletResponse;
import java.util.*;

@Slf4j
@RestController
@RequestMapping("/api")
public class CodeController extends BaseController {

    @Autowired
    private CodeService codeService;
    @Autowired
    private CodeGapService codeGapService;
    @Autowired
    private RouteService routeService;
    @Autowired
    private FuncStaService funcStaService;

    @PreAuthorize("hasAuthority('manager:code:list')")
    @PostMapping("/code/page")
    public R page(@RequestBody Map<String, Object> map) {
        BaseParam baseParam = buildParam(map, BaseParam.class);
        PageParam<Code, BaseParam> pageParam = new PageParam<>(baseParam, Code.class);
        return R.ok().add(codeService.page(pageParam, pageParam.buildWrapper(true)));
    }

    @PreAuthorize("hasAuthority('manager:code:list')")
    @PostMapping("/code/list")
    public R list(@RequestBody Map<String, Object> map) {
        return R.ok().add(codeService.list());
    }

    @PreAuthorize("hasAuthority('manager:code:list')")
    @PostMapping({"/code/many/{ids}", "/codes/many/{ids}"})
    public R many(@PathVariable Long[] ids) {
        return R.ok().add(codeService.listByIds(Arrays.asList(ids)));
    }

    @PreAuthorize("hasAuthority('manager:code:list')")
    @GetMapping("/code/{id}")
    public R get(@PathVariable("id") Long id) {
        return R.ok().add(codeService.getCacheById(id));
    }

    @PreAuthorize("hasAuthority('manager:code:list')")
    @PostMapping("/code/info")
    public R info(@RequestParam(required = false) String codeData) {
        if (Cools.isEmpty(codeData)) {
            return R.error();
        }
        Code code = codeService.getCacheByData(codeData);
        if (code == null) {
            return R.error("Code Not Found");
        }
        return R.ok().add(code);
    }

    @PreAuthorize("hasAuthority('manager:code:list')")
    @PostMapping("/code/route/list")
    public R routeList(@RequestParam(required = false) String codeData) {
        if (Cools.isEmpty(codeData)) {
            return R.error();
        }
        Code code = codeService.getCacheByData(codeData);
        if (code == null) {
            return R.ok().add(Collections.emptyList());
        }
        List<Route> routeList = routeService.list(new LambdaQueryWrapper<Route>()
                .eq(Route::getStatus, StatusType.ENABLE.val)
                .and(wrapper -> wrapper.eq(Route::getStartCode, code.getId()).or().eq(Route::getEndCode, code.getId()))
                .orderByAsc(Route::getId));
        return R.ok().add(routeList);
    }

    @PreAuthorize("hasAuthority('manager:code:list')")
    @PostMapping("/code/funcSta/list")
    public R funcStaList(@RequestParam(required = false) String codeData) {
        if (Cools.isEmpty(codeData)) {
            return R.error();
        }
        Code code = codeService.getCacheByData(codeData);
        if (code == null) {
            return R.ok().add(Collections.emptyList());
        }
        List<FuncSta> funcStaList = funcStaService.list(new LambdaQueryWrapper<FuncSta>()
                .eq(FuncSta::getCode, code.getId())
                .eq(FuncSta::getStatus, StatusType.ENABLE.val)
                .orderByAsc(FuncSta::getId));
        return R.ok().add(funcStaList);
    }

    @PreAuthorize("hasAuthority('manager:code:save')")
    @OperationLog("Create Code")
    @PostMapping("/code/save")
    public R save(@RequestBody Code code) {
        code.setData(QrCodeCodecSupport.normalize(code.getData()));
        code.setUuid("code".concat(code.getData()));
        code.setCreateBy(getLoginUserId());
        code.setCreateTime(new Date());
        code.setUpdateBy(getLoginUserId());
        code.setUpdateTime(new Date());
        if (!codeService.save(code)) {
            return R.error("Save Fail");
        }
        codeService.refreshCacheById(code.getId());
        return R.ok("Save Success").add(code);
    }

    @PreAuthorize("hasAuthority('manager:code:update')")
    @OperationLog("Update Code")
    @PostMapping("/code/update")
    public R update(@RequestBody Code code) {
        Code origin = codeService.getById(code.getId());
        boolean cornerChanged = origin != null
                && code.getCorner() != null
                && !Objects.equals(origin.getCorner(), code.getCorner());
        code.setData(QrCodeCodecSupport.normalize(code.getData()));
        code.setUpdateBy(getLoginUserId());
        code.setUpdateTime(new Date());
        if (!codeService.updateById(code)) {
            return R.error("Update Fail");
        }
        List<Long> affectedCodeIds = new ArrayList<>(routeService.getAdjacencyNode(code.getId()));
        if (!cornerChanged) {
            affectedCodeIds.add(code.getId());
        }
        codeService.evictCacheById(code.getId(), origin == null ? null : origin.getData());
        codeService.refreshCacheById(code.getId());
        if (!affectedCodeIds.isEmpty()) {
            codeService.refreshCornerByCodeIds(affectedCodeIds);
        }
        return R.ok("Update Success").add(code);
    }

    @PreAuthorize("hasAuthority('manager:code:remove')")
    @OperationLog("Delete Code")
    @PostMapping("/code/remove/{ids}")
    @Transactional
    public R remove(@PathVariable Long[] ids) {
        List<Long> affectedCodeIds = new ArrayList<>();
        for (Long id : ids) {
            Code code = codeService.getById(id);
            if (null == code) {
                continue;
            }
            affectedCodeIds.addAll(routeService.getAdjacencyNode(code.getId()));
            codeGapService.remove(new LambdaQueryWrapper<CodeGap>().eq(CodeGap::getCode0, code.getId()).or().eq(CodeGap::getCode1, code.getId()));
            routeService.remove(new LambdaQueryWrapper<Route>().eq(Route::getStartCode, code.getId()).or().eq(Route::getEndCode, code.getId()));
            if (!codeService.removeById(id)) {
                throw new CoolException("failed to remove code");
            }
            codeService.evictCacheById(code.getId(), code.getData());
        }
        codeService.refreshCornerByCodeIds(affectedCodeIds);
        return R.ok("Delete Success").add(ids);
    }

    @PreAuthorize("hasAuthority('manager:code:list')")
    @PostMapping("/code/query")
    public R query(@RequestParam(required = false) String condition) {
        List<KeyValVo> vos = new ArrayList<>();
        LambdaQueryWrapper<Code> wrapper = new LambdaQueryWrapper<>();
        if (!Cools.isEmpty(condition)) {
            wrapper.like(Code::getUuid, condition);
        }
        codeService.page(new Page<>(1, 30), wrapper).getRecords().forEach(
                item -> vos.add(new KeyValVo(item.getId(), item.getUuid()))
        );
        return R.ok().add(vos);
    }

    @PreAuthorize("hasAuthority('manager:code:list')")
    @PostMapping("/code/export")
    public void export(@RequestBody Map<String, Object> map, HttpServletResponse response) throws Exception {
        // 1. 提取筛选条件（兼容前端 { filter: {...} } 格式）
        Map<String, Object> filter = map;
        if (map != null && map.containsKey("filter")) {
            Object filterObj = map.get("filter");
            if (filterObj instanceof Map) {
                filter = (Map<String, Object>) filterObj;
            }
        }

        // 2. 构建查询条件（MyBatis-Plus）
        QueryWrapper<Code> wrapper = new QueryWrapper<>();
        if (filter != null && !filter.isEmpty()) {
            // 根据前端可能传递的字段添加条件（字段名需与数据库列或实体属性对应）
            if (filter.containsKey("corner")) {
                wrapper.eq("corner", filter.get("corner"));
            }
            if (filter.containsKey("condition")) {
                String condition = (String) filter.get("condition");
                wrapper.and(w -> w.like("data", condition).or().like("uuid", condition));
            }
            if (filter.containsKey("timeStart")) {
                wrapper.ge("create_time", filter.get("timeStart"));
            }
            if (filter.containsKey("timeEnd")) {
                wrapper.le("create_time", filter.get("timeEnd"));
            }
            if (filter.containsKey("x")) {
                wrapper.eq("x", filter.get("x"));
            }
            if (filter.containsKey("y")) {
                wrapper.eq("y", filter.get("y"));
            }
            if (filter.containsKey("memo")) {
                wrapper.like("memo", filter.get("memo"));
            }
            if (filter.containsKey("status")) {
                wrapper.eq("status", filter.get("status"));
            }
            // 还可以添加其他字段如 data, uuid 等
        }

        // 3. 查询符合条件的数据
        List<Code> list = codeService.list(wrapper);

        // 4. 导出 Excel
        ExcelUtil.build(ExcelUtil.create(list, Code.class), response);
    }

    @PreAuthorize("hasAuthority('manager:code:save')")
    @PostMapping("/code/import")
    public R importBatch(@RequestBody List<Map<String, Object>> list) {
        Date now = new Date();  Long userId = getLoginUserId();
        for (Map<String, Object> map : list) {
            Code code = Cools.convert(map, Code.class);
            code.setData(QrCodeCodecSupport.normalize(code.getData()));
            if (null != codeService.getCacheByData(code.getData())) {
                continue;
            }
            code.setUuid("code".concat(code.getData()));
//            code.setCorner(0);
            code.setScale(GsonUtils.toJson(Cools.add("x", 1).add("y", 1)));
            code.setStatus(StatusType.ENABLE.val);
            code.setCreateBy(userId);
            code.setCreateTime(now);
            code.setUpdateBy(userId);
            code.setUpdateTime(now);
            if (!codeService.save(code)) {
                log.error("failed to save code {}", JSON.toJSONString(map));
            }
            codeService.refreshCacheById(code.getId());
        }
        return R.ok();
    }

}