package officialwebsiteser

import (
	"time"

	"91porn-server/common/stderr"
	officialwebsitemod "91porn-server/models/v/officialWebsitemod"

	"go.mongodb.org/mongo-driver/bson/primitive"
)

// ─────────────────────────────────────────
// Service functions
// ─────────────────────────────────────────

func ListBusiness(req *BusinessListReq) (int64, []officialwebsitemod.BusinessData, error) {
	filter, err := req.Query()
	if err != nil {
		return 0, nil, err
	}
	mod := &officialwebsitemod.BusinessData{}
	total, err := mod.Count(filter)
	if err != nil {
		return 0, nil, err
	}
	list, err := mod.FindMany(filter, req.FindOptions())
	if err != nil {
		return 0, nil, err
	}
	return total, list, nil
}

func CreateBusiness(req *ModifyBusinessReq) (officialwebsitemod.BusinessData, error) {
	data := req.toMod()
	if err := data.Create(); err != nil {
		return officialwebsitemod.BusinessData{}, err
	}
	return data, nil
}

func UpdateBusiness(req *ModifyBusinessReq) (resp CountResp, err error) {
	if req == nil || req.ID == "" {
		return
	}
	id, parseErr := primitive.ObjectIDFromHex(req.ID)
	if parseErr != nil || isNilObjectID(id) {
		err = stderr.ErrParamError
		return
	}
	mod := &officialwebsitemod.BusinessData{}
	if err = mod.FindOne(officialwebsitemod.M{"_id": id}); err != nil {
		return
	}
	var update officialwebsitemod.M
	if update, err = req.toM(); err != nil || update == nil {
		return
	}
	resp.Count, err = mod.Update(officialwebsitemod.M{"_id": id}, update)
	return
}

func DeleteBusiness(req *DeleteBusinessReq) (data DeleteBusinessResp, err error) {
	if req == nil {
		err = stderr.CodeEmptyData
		return
	}
	var id primitive.ObjectID
	if id, err = primitive.ObjectIDFromHex(req.ID); err != nil {
		return
	}
	if isNilObjectID(id) {
		err = stderr.ErrParamError
		return
	}
	mod := &officialwebsitemod.BusinessData{}
	data.Count, err = mod.Delete(officialwebsitemod.M{"_id": id})
	return
}

// ─────────────────────────────────────────
// Mutation (Modify) types
// ─────────────────────────────────────────

type ModifyBusinessReq struct {
	ID                   string             `json:"id" form:"id"`
	Title                *string            `json:"title"`
	Description          *string            `json:"description"`
	Type                 *string            `json:"type"`
	ServiceOverview      *string            `json:"serviceOverview"`
	CollaborationProcess *string            `json:"collaborationProcess"`
	CaseStudies          *string            `json:"caseStudies"`
}

// ─────────────────────────────────────────
// Delete types
// ─────────────────────────────────────────

type DeleteBusinessReq struct {
	ID string `json:"id" form:"id"`
}

type DeleteBusinessResp struct {
	Count int64 `json:"count"`
}

// ─────────────────────────────────────────
// toMod — ModifyBusinessReq → model struct
// ─────────────────────────────────────────

func (req *ModifyBusinessReq) toMod() officialwebsitemod.BusinessData {
	if req == nil {
		return officialwebsitemod.BusinessData{}
	}
	return officialwebsitemod.BusinessData{
		Title:                stringOrZero(req.Title),
		Description:          stringOrZero(req.Description),
		Type:                 stringOrZero(req.Type),
		ServiceOverview:      stringOrZero(req.ServiceOverview),
		CollaborationProcess: stringOrZero(req.CollaborationProcess),
		CaseStudies:          stringOrZero(req.CaseStudies),
	}
}

// ─────────────────────────────────────────
// toM — ModifyBusinessReq → officialwebsitemod.M
// ─────────────────────────────────────────

func (req *ModifyBusinessReq) toM() (officialwebsitemod.M, error) {
	if req == nil {
		return nil, stderr.CodeEmptyData
	}
	set := officialwebsitemod.M{}
	if req.Title != nil {
		set["title"] = *req.Title
	}
	if req.Description != nil {
		set["description"] = *req.Description
	}
	if req.Type != nil {
		set["type"] = *req.Type
	}
	if req.ServiceOverview != nil {
		set["serviceOverview"] = *req.ServiceOverview
	}
	if req.CollaborationProcess != nil {
		set["collaborationProcess"] = *req.CollaborationProcess
	}
	if req.CaseStudies != nil {
		set["caseStudies"] = *req.CaseStudies
	}
	if len(set) == 0 {
		return nil, nil
	}
	set["updatedAt"] = time.Now().UTC()
	return officialwebsitemod.M{"$set": set}, nil
}

// ─────────────────────────────────────────
// List types
// ─────────────────────────────────────────

type BusinessListReq struct {
	PageReq
	ID                   *string    `form:"id"`
	Title                *string    `form:"title"`
	Description          *string    `form:"description"`
	Type                 *string    `form:"type"`
	ServiceOverview      *string    `form:"serviceOverview"`
	CollaborationProcess *string    `form:"collaborationProcess"`
	CaseStudies          *string    `form:"caseStudies"`
	CreatedAt            *time.Time `form:"createdAt"`
	UpdatedAt            *time.Time `form:"updatedAt"`
	DeletedAt            *time.Time `form:"deletedAt"`
}

func (r *BusinessListReq) Query() (officialwebsitemod.M, error) {
	filter := officialwebsitemod.M{}
	if err := parseObjectIDFilter(filter, "_id", r.ID); err != nil {
		return nil, err
	}
	if r.Title != nil {
		filter["title"] = *r.Title
	}
	if r.Description != nil {
		filter["description"] = *r.Description
	}
	if r.Type != nil {
		filter["type"] = *r.Type
	}
	if r.ServiceOverview != nil {
		filter["serviceOverview"] = *r.ServiceOverview
	}
	if r.CollaborationProcess != nil {
		filter["collaborationProcess"] = *r.CollaborationProcess
	}
	if r.CaseStudies != nil {
		filter["caseStudies"] = *r.CaseStudies
	}
	if r.CreatedAt != nil {
		filter["createdAt"] = *r.CreatedAt
	}
	if r.UpdatedAt != nil {
		filter["updatedAt"] = *r.UpdatedAt
	}
	if r.DeletedAt != nil {
		filter["deletedAt"] = *r.DeletedAt
	}
	return filter, nil
}