package delivery

import (
	"time"

	"git.apinb.com/bsm-sdk/core/errcode"
	"git.apinb.com/bsm-sdk/core/infra"
	"git.apinb.com/heqiapp/platforms/backend/api/internal/logic/common"
	"git.apinb.com/heqiapp/platforms/backend/api/internal/models"
	"github.com/gin-gonic/gin"
	"gorm.io/gorm"
)

func scopedStaff(ctx *gin.Context, identity string, point models.DeliveryBasic) (models.StaffAccount, bool) {
	var staff models.StaffAccount
	if err := common.ActiveRecords(db()).Where("identity = ? AND gas_basic_id = ? AND delivery_basic_id = ?",
		identity, point.GasBasicID, point.ID).First(&staff).Error; err != nil {
		common.RespondRecordError(ctx, err)
		return staff, false
	}
	return staff, true
}

func ListStaff(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	query := common.ActiveRecords(db().Model(&models.StaffAccount{})).
		Where("gas_basic_id = ? AND delivery_basic_id = ? AND role_code = ?", point.GasBasicID, point.ID, "delivery")
	listScoped(ctx, &models.StaffAccount{}, query, "staff_account.created_at desc")
}

func GetStaff(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	var staff models.StaffAccount
	respondRecord(ctx, common.ActiveRecords(db()).Where("identity = ? AND gas_basic_id = ? AND delivery_basic_id = ? AND role_code = ?",
		ctx.Param("identity"), point.GasBasicID, point.ID, "delivery"), &staff)
}

type staffRequest struct {
	Username   string `json:"username"`
	Password   string `json:"password"`
	Name       string `json:"name" binding:"required,max=64"`
	Phone      string `json:"phone" binding:"max=32"`
	Avatar     string `json:"avatar" binding:"max=512"`
	WorkStatus string `json:"work_status" binding:"required"`
}

func CreateStaff(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	var request staffRequest
	if err := ctx.ShouldBindJSON(&request); err != nil || request.Username == "" ||
		!common.IsValidAccountPassword(request.Password) || (request.WorkStatus != "on_duty" && request.WorkStatus != "off_duty") {
		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
		return
	}
	hash, err := common.PasswordHash(request.Password)
	if err != nil {
		infra.Response.Error(ctx, err)
		return
	}
	staff := models.StaffAccount{
		Entity: common.NewEntity(common.StatusEnable), Username: request.Username, PasswordHash: hash,
		Name: request.Name, Phone: request.Phone, Avatar: request.Avatar, RoleCode: "delivery",
		GasBasicID: point.GasBasicID, DeliveryBasicID: point.ID, WorkStatus: request.WorkStatus,
	}
	if err := db().Create(&staff).Error; err != nil {
		infra.Response.Error(ctx, err)
		return
	}
	common.RespondCreatedResource(ctx, staff)
}

func UpdateStaff(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	if _, ok := scopedStaff(ctx, ctx.Param("identity"), point); !ok {
		return
	}
	var request staffRequest
	if err := ctx.ShouldBindJSON(&request); err != nil ||
		(request.WorkStatus != "on_duty" && request.WorkStatus != "off_duty") {
		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
		return
	}
	common.UpdateAllowedByIdentity(ctx, &models.StaffAccount{}, gin.H{
		"name": request.Name, "phone": request.Phone, "avatar": request.Avatar, "work_status": request.WorkStatus,
	}, []string{"name", "phone", "avatar", "work_status"})
}

func ResetStaffPassword(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	staff, ok := scopedStaff(ctx, ctx.Param("identity"), point)
	if !ok {
		return
	}
	var request struct {
		Password string `json:"password" binding:"required"`
	}
	if err := ctx.ShouldBindJSON(&request); err != nil || !common.IsValidAccountPassword(request.Password) {
		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
		return
	}
	hash, _ := common.PasswordHash(request.Password)
	if err := db().Model(&staff).Update("password_hash", hash).Error; err != nil {
		infra.Response.Error(ctx, err)
		return
	}
	infra.Response.Success(ctx, gin.H{"changed": true})
}

func UpdateStaffStatus(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	if _, ok := scopedStaff(ctx, ctx.Param("identity"), point); ok {
		common.UpdateRecordStatus(ctx, &models.StaffAccount{})
	}
}

func ArchiveStaff(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	staff, ok := scopedStaff(ctx, ctx.Param("identity"), point)
	if !ok {
		return
	}
	var count int64
	if err := db().Model(&models.GasorderBasic{}).
		Where("staff_account_id = ? AND order_status NOT IN ?", staff.ID, []int{common.StatusCompleted, common.StatusCancelled}).
		Count(&count).Error; err != nil || count > 0 {
		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
		return
	}
	if err := db().Transaction(func(tx *gorm.DB) error {
		if err := tx.Model(&models.StaffCredential{}).Where("staff_account_id = ?", staff.ID).
			Update("status", common.StatusArchived).Error; err != nil {
			return err
		}
		return tx.Model(&staff).Update("status", common.StatusArchived).Error
	}); err != nil {
		infra.Response.Error(ctx, err)
		return
	}
	infra.Response.Success(ctx, gin.H{"archived": true})
}

func credentialQuery(point models.DeliveryBasic) *gorm.DB {
	return common.ActiveRecords(db().Model(&models.StaffCredential{})).
		Joins("JOIN staff_account ON staff_account.id = staff_credential.staff_account_id").
		Where("staff_account.delivery_basic_id = ? AND staff_account.gas_basic_id = ? AND staff_account.role_code = ?",
			point.ID, point.GasBasicID, "delivery")
}

func ListCredential(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if ok {
		listScoped(ctx, &models.StaffCredential{}, credentialQuery(point), "staff_credential.created_at desc")
	}
}

func GetCredential(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	var credential models.StaffCredential
	respondRecord(ctx, credentialQuery(point).Where("staff_credential.identity = ?", ctx.Param("identity")), &credential)
}

type credentialRequest struct {
	StaffIdentity  string     `json:"staff_account_identity" binding:"required"`
	CredentialType string     `json:"credential_type" binding:"required,max=64"`
	CredentialNo   string     `json:"credential_no" binding:"max=128"`
	ExpiredAt      *time.Time `json:"expired_at"`
}

func CreateCredential(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	var request credentialRequest
	if err := ctx.ShouldBindJSON(&request); err != nil {
		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
		return
	}
	staff, ok := scopedStaff(ctx, request.StaffIdentity, point)
	if !ok {
		return
	}
	item := models.StaffCredential{
		Entity: common.NewEntity(common.StatusEnable), StaffAccountID: staff.ID,
		CredentialType: request.CredentialType, CredentialNo: request.CredentialNo, ExpiredAt: request.ExpiredAt,
	}
	if err := db().Create(&item).Error; err != nil {
		infra.Response.Error(ctx, err)
		return
	}
	common.RespondCreatedResource(ctx, item)
}

func UpdateCredential(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	var existing models.StaffCredential
	if err := credentialQuery(point).Where("staff_credential.identity = ?", ctx.Param("identity")).First(&existing).Error; err != nil {
		common.RespondRecordError(ctx, err)
		return
	}
	var request credentialRequest
	if err := ctx.ShouldBindJSON(&request); err != nil {
		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
		return
	}
	staff, ok := scopedStaff(ctx, request.StaffIdentity, point)
	if !ok {
		return
	}
	if err := db().Model(&existing).Updates(map[string]any{
		"staff_account_id": staff.ID, "credential_type": request.CredentialType,
		"credential_no": request.CredentialNo, "expired_at": request.ExpiredAt,
	}).Error; err != nil {
		infra.Response.Error(ctx, err)
		return
	}
	infra.Response.Success(ctx, gin.H{"updated": true})
}

func UpdateCredentialStatus(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	var count int64
	if err := credentialQuery(point).Where("staff_credential.identity = ?", ctx.Param("identity")).Count(&count).Error; err != nil || count != 1 {
		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
		return
	}
	common.UpdateRecordStatus(ctx, &models.StaffCredential{})
}

func ArchiveCredential(ctx *gin.Context) {
	point, _, ok := currentScope(ctx)
	if !ok {
		return
	}
	var count int64
	if err := credentialQuery(point).Where("staff_credential.identity = ?", ctx.Param("identity")).Count(&count).Error; err != nil || count != 1 {
		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
		return
	}
	common.ArchiveRecord(ctx, &models.StaffCredential{})
}