package incident

import (
	"strconv"

	"github.com/gin-gonic/gin"
	"wails-app/internal/model/common/response"
	"wails-app/internal/modules/incident/repository"
	"wails-app/internal/modules/incident/service"
	utils "wails-app/internal/pkg"
)

var incidentSvc = service.NewIncidentService()

// adminAuthorityId 管理员角色（888）；处置权限见初始化种子中的 Casbin 规则。
const adminAuthorityId = "888"

// ListIncidents 分页筛选异常记录。
func ListIncidents(c *gin.Context) {
	var q repository.IncidentListQuery
	if err := c.ShouldBindQuery(&q); err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}
	list, total, err := incidentSvc.ListIncidents(q)
	if err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}
	response.OkWithDetailed(response.PageResult{List: list, Total: total, Page: q.Page, PageSize: q.PageSize}, "查询成功", c)
}

// GetIncident 异常详情。
func GetIncident(c *gin.Context) {
	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
	if err != nil {
		response.FailWithMessage("异常记录 ID 无效", c)
		return
	}
	record, err := incidentSvc.GetIncident(uint(id))
	if err != nil {
		response.FailWithMessage(service.ErrIncidentNotFound.Error(), c)
		return
	}
	response.OkWithData(record, c)
}

// CreateIncident 人工上报异常。
func CreateIncident(c *gin.Context) {
	var req service.CreateIncidentRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}
	record, err := incidentSvc.CreateIncident(req, utils.GetUserID(c))
	if err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}
	response.OkWithData(record, c)
}

// TransitionIncident 状态流转+处置。强制免费等资金类处置仅管理员（888）可执行。
func TransitionIncident(c *gin.Context) {
	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
	if err != nil {
		response.FailWithMessage("异常记录 ID 无效", c)
		return
	}
	var req service.TransitionRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}
	isAdmin := strconv.FormatUint(uint64(utils.GetUserAuthorityId(c)), 10) == adminAuthorityId
	record, err := incidentSvc.TransitionIncident(uint(id), req, utils.GetUserID(c), isAdmin)
	if err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}
	response.OkWithData(record, c)
}

// GetIncidentStats 异常统计（页面头部汇总）。
func GetIncidentStats(c *gin.Context) {
	stats, err := incidentSvc.GetIncidentStats()
	if err != nil {
		response.FailWithMessage(err.Error(), c)
		return
	}
	response.OkWithData(stats, c)
}

// SetupIncidentRouter 注册异常处置路由（挂在 PrivateGroup，自动带 JWT+Casbin+操作日志）。
func SetupIncidentRouter(router *gin.RouterGroup) {
	sr := router.Group("/incident")
	sr.GET("/list", ListIncidents)
	sr.GET("/stats", GetIncidentStats)
	sr.GET("/:id", GetIncident)
	sr.POST("", CreateIncident)
	sr.POST("/:id/transition", TransitionIncident)
}