package cn.iocoder.yudao.module.bi.controller.admin.decision;

import cn.iocoder.yudao.framework.common.pojo.CommonResult;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.module.bi.controller.admin.decision.vo.DecisionForecastHistorySaveReqVO;
import cn.iocoder.yudao.module.bi.controller.admin.decision.vo.DecisionForecastReqVO;
import cn.iocoder.yudao.module.bi.controller.admin.decision.vo.DecisionForecastRespVO;
import cn.iocoder.yudao.module.bi.controller.admin.decision.vo.DecisionForecastWorkOrderCreateReqVO;
import cn.iocoder.yudao.module.bi.dal.dataobject.decision.BiForecastDataDO;
import cn.iocoder.yudao.module.bi.service.decision.BiForecastService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.annotation.Resource;
import jakarta.validation.Valid;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.time.LocalDateTime;
import java.util.List;

import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;

@Tag(name = "管理后台 - 决策支持 负荷预测")
@RestController
@RequestMapping("/bi/decision/forecast")
@Validated
public class DecisionForecastController {

    @Resource
    private BiForecastService forecastService;

    @GetMapping("/list")
    @Operation(summary = "获取预测数据")
    @PreAuthorize("@ss.hasPermission('bi:decision:kpi:query')")
    public CommonResult<List<BiForecastDataDO>> getForecastList(@Valid DecisionForecastReqVO reqVO) {
        // 默认查最近30天
        LocalDateTime endTime = LocalDateTime.now();
        LocalDateTime beginTime = endTime.minusDays(30);
        return success(forecastService.getForecastList(reqVO.getForecastCode(), beginTime, endTime));
    }

    @PostMapping("/history")
    @Operation(summary = "新增历史预测数据")
    @PreAuthorize("@ss.hasPermission('bi:decision:kpi:update')")
    public CommonResult<Long> createForecastHistory(@Valid @RequestBody DecisionForecastHistorySaveReqVO reqVO) {
        return success(forecastService.createForecastHistory(reqVO));
    }

    @PostMapping("/generate")
    @Operation(summary = "生成预测（支持指定模型）")
    @PreAuthorize("@ss.hasPermission('bi:decision:kpi:query')")
    public CommonResult<Boolean> generateForecast(@RequestParam("forecastCode") String forecastCode,
                                                  @RequestParam(value = "model", required = false) String model,
                                                  @RequestParam(value = "window", required = false, defaultValue = "12") Integer window,
                                                  @RequestParam(value = "period", required = false, defaultValue = "7") Integer period) {
        if (model == null || model.isBlank()) {
            forecastService.generateForecast(forecastCode, LocalDateTime.now());
        } else {
            forecastService.generateForecast(forecastCode, model, window, period, LocalDateTime.now());
        }
        return success(true);
    }

    @PostMapping("/generate-from-kpi")
    @Operation(summary = "基于KPI历史快照生成预测（负荷/产量/采购/回款）")
    @PreAuthorize("@ss.hasPermission('bi:decision:kpi:query')")
    public CommonResult<Integer> generateKpiForecast(@RequestParam("kpiCode") String kpiCode,
                                                     @RequestParam(value = "model", required = false) String model,
                                                     @RequestParam(value = "window", required = false, defaultValue = "12") Integer window,
                                                     @RequestParam(value = "period", required = false, defaultValue = "7") Integer period,
                                                     @RequestParam(value = "periods", required = false, defaultValue = "30") Integer periods,
                                                     @RequestParam(value = "intervalMinutes", required = false, defaultValue = "360") Integer intervalMinutes) {
        return success(forecastService.generateKpiForecast(kpiCode, model, window, period, periods, intervalMinutes));
    }

    @PostMapping("/generate-work-order")
    @Operation(summary = "负荷预测联动创建生产工单")
    @PreAuthorize("@ss.hasPermission('bi:decision-forecast:generate-work-order')")
    public CommonResult<Long> generateWorkOrder(@Valid @RequestBody DecisionForecastWorkOrderCreateReqVO reqVO) {
        return success(forecastService.createWorkOrderFromForecast(reqVO));
    }

}