package controller

import (
	"github.com/gin-gonic/gin"
	"hospital-admin-api/api/dao"
	"hospital-admin-api/api/requests"
	"hospital-admin-api/api/responses"
	"hospital-admin-api/api/service"
	"hospital-admin-api/global"
	"hospital-admin-api/utils"
	"strconv"
)

type DoctorPharmacy struct{}

// GetDoctorPharmacies 获取指定医生绑定的药房列表
func (r *DoctorPharmacy) GetDoctorPharmacies(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		id = c.Param("doctor_id")
	}
	if id == "" {
		responses.FailWithMessage("缺少医生ID参数", c)
		return
	}

	doctorId, err := strconv.ParseInt(id, 10, 64)
	if err != nil {
		responses.Fail(c)
		return
	}

	doctorPharmacyService := service.DoctorPharmacyService{}
	list, err := doctorPharmacyService.GetDoctorPharmacies(doctorId)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.OkWithData(list, c)
}

// BindDoctorPharmacies 批量设置/覆盖医生绑定的药房列表
func (r *DoctorPharmacy) BindDoctorPharmacies(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		id = c.Param("doctor_id")
	}
	if id == "" {
		responses.FailWithMessage("缺少医生ID参数", c)
		return
	}

	doctorId, err := strconv.ParseInt(id, 10, 64)
	if err != nil {
		responses.Fail(c)
		return
	}

	req := requests.BindDoctorPharmacies{}
	if err := c.ShouldBindJSON(&req); err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	if err := global.Validate.Struct(req); err != nil {
		responses.FailWithMessage(utils.Translate(err), c)
		return
	}

	doctorPharmacyService := service.DoctorPharmacyService{}
	_, err = doctorPharmacyService.BindDoctorPharmacies(doctorId, req)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.Ok(c)
}

// AddDoctorPharmacy 为医生新增单个药房绑定
func (r *DoctorPharmacy) AddDoctorPharmacy(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		id = c.Param("doctor_id")
	}

	var doctorId int64
	if id != "" {
		doctorId, _ = strconv.ParseInt(id, 10, 64)
	}

	req := requests.AddDoctorPharmacy{}
	if err := c.ShouldBindJSON(&req); err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	if doctorId == 0 && req.DoctorId != "" {
		doctorId, _ = strconv.ParseInt(req.DoctorId, 10, 64)
	}

	if doctorId == 0 {
		responses.FailWithMessage("缺少医生ID", c)
		return
	}

	if err := global.Validate.Struct(req); err != nil {
		responses.FailWithMessage(utils.Translate(err), c)
		return
	}

	doctorPharmacyService := service.DoctorPharmacyService{}
	_, err := doctorPharmacyService.AddDoctorPharmacy(doctorId, req)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.Ok(c)
}

// UnbindDoctorPharmacy 解除医生与指定药房的绑定（DELETE /admin/doctor/pharmacy/:id）
func (r *DoctorPharmacy) UnbindDoctorPharmacy(c *gin.Context) {
	idStr := c.Param("id")
	if idStr == "" {
		idStr = c.Param("doctor_pharmacy_id")
	}

	id, err := strconv.ParseInt(idStr, 10, 64)
	if err != nil || id == 0 {
		responses.FailWithMessage("缺少ID参数", c)
		return
	}

	doctorPharmacyDao := dao.DoctorPharmacyDao{}
	doctorPharmacyService := service.DoctorPharmacyService{}

	// 1. 优先作为 doctor_pharmacy_id 判定
	dp, _ := doctorPharmacyDao.GetDoctorPharmacyById(id)
	if dp != nil {
		_, err = doctorPharmacyService.UnbindDoctorPharmacyById(id)
		if err != nil {
			responses.FailWithMessage(err.Error(), c)
			return
		}
		responses.Ok(c)
		return
	}

	// 2. 若作为 doctor_id，从 query 或 body 获取 pharmacy_id
	pharmacyIdStr := c.Query("pharmacy_id")
	if pharmacyIdStr != "" {
		pharmacyId, err := strconv.ParseInt(pharmacyIdStr, 10, 64)
		if err == nil && pharmacyId >= 0 {
			_, err = doctorPharmacyService.UnbindDoctorPharmacy(id, pharmacyId)
			if err != nil {
				responses.FailWithMessage(err.Error(), c)
				return
			}
			responses.Ok(c)
			return
		}
	}

	responses.FailWithMessage("未找到绑定记录或缺少药房ID", c)
}

// UnbindDoctorPharmacyPost 解绑药房（POST /admin/doctor/pharmacy/unbind）
func (r *DoctorPharmacy) UnbindDoctorPharmacyPost(c *gin.Context) {
	req := requests.UnbindDoctorPharmacy{}
	if err := c.ShouldBindJSON(&req); err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	doctorPharmacyService := service.DoctorPharmacyService{}

	// 优先按 doctor_pharmacy_id
	if req.DoctorPharmacyId != "" {
		dpid, err := strconv.ParseInt(req.DoctorPharmacyId, 10, 64)
		if err == nil && dpid > 0 {
			_, err = doctorPharmacyService.UnbindDoctorPharmacyById(dpid)
			if err != nil {
				responses.FailWithMessage(err.Error(), c)
				return
			}
			responses.Ok(c)
			return
		}
	}

	// 其次按 doctor_id + pharmacy_id
	if req.DoctorId != "" && req.PharmacyId != "" {
		docId, err1 := strconv.ParseInt(req.DoctorId, 10, 64)
		pharId, err2 := strconv.ParseInt(req.PharmacyId, 10, 64)
		if err1 == nil && err2 == nil {
			_, err := doctorPharmacyService.UnbindDoctorPharmacy(docId, pharId)
			if err != nil {
				responses.FailWithMessage(err.Error(), c)
				return
			}
			responses.Ok(c)
			return
		}
	}

	responses.FailWithMessage("缺少解绑参数", c)
}

// SetDefaultDoctorPharmacy 设置默认药房（PUT /admin/doctor/pharmacy/default/:id）
func (r *DoctorPharmacy) SetDefaultDoctorPharmacy(c *gin.Context) {
	idStr := c.Param("id")
	id, err := strconv.ParseInt(idStr, 10, 64)
	if err != nil || id == 0 {
		responses.FailWithMessage("缺少ID参数", c)
		return
	}

	doctorPharmacyDao := dao.DoctorPharmacyDao{}
	doctorPharmacyService := service.DoctorPharmacyService{}

	// 1. 优先作为 doctor_pharmacy_id 判定
	dp, _ := doctorPharmacyDao.GetDoctorPharmacyById(id)
	if dp != nil {
		_, err = doctorPharmacyService.SetDefaultPharmacyById(id)
		if err != nil {
			responses.FailWithMessage(err.Error(), c)
			return
		}
		responses.Ok(c)
		return
	}

	// 2. 若作为 doctor_id，从 query 或 body 获取 pharmacy_id
	pharmacyIdStr := c.Query("pharmacy_id")
	if pharmacyIdStr != "" {
		pharmacyId, err := strconv.ParseInt(pharmacyIdStr, 10, 64)
		if err == nil && pharmacyId >= 0 {
			_, err = doctorPharmacyService.SetDefaultPharmacy(id, pharmacyId)
			if err != nil {
				responses.FailWithMessage(err.Error(), c)
				return
			}
			responses.Ok(c)
			return
		}
	}

	responses.FailWithMessage("未找到绑定记录或缺少药房ID", c)
}

// SetDefaultDoctorPharmacyPut 设置默认药房（PUT /admin/doctor/pharmacy/default）
func (r *DoctorPharmacy) SetDefaultDoctorPharmacyPut(c *gin.Context) {
	req := requests.SetDefaultDoctorPharmacy{}
	if err := c.ShouldBindJSON(&req); err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	doctorPharmacyService := service.DoctorPharmacyService{}

	// 优先按 doctor_pharmacy_id
	if req.DoctorPharmacyId != "" {
		dpid, err := strconv.ParseInt(req.DoctorPharmacyId, 10, 64)
		if err == nil && dpid > 0 {
			_, err = doctorPharmacyService.SetDefaultPharmacyById(dpid)
			if err != nil {
				responses.FailWithMessage(err.Error(), c)
				return
			}
			responses.Ok(c)
			return
		}
	}

	// 其次按 doctor_id + pharmacy_id
	if req.DoctorId != "" && req.PharmacyId != "" {
		docId, err1 := strconv.ParseInt(req.DoctorId, 10, 64)
		pharId, err2 := strconv.ParseInt(req.PharmacyId, 10, 64)
		if err1 == nil && err2 == nil {
			_, err := doctorPharmacyService.SetDefaultPharmacy(docId, pharId)
			if err != nil {
				responses.FailWithMessage(err.Error(), c)
				return
			}
			responses.Ok(c)
			return
		}
	}

	responses.FailWithMessage("缺少参数", c)
}