package officialwebsiteser

import (
	"time"

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

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

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

func ListJobList(req *JobListReq) (int64, []officialwebsitemod.Job, error) {
	filter, err := req.Query()
	if err != nil {
		return 0, nil, err
	}
	mod := &officialwebsitemod.Job{}
	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 CreateJobList(req *ModifyJobReq) (officialwebsitemod.Job, error) {
	data := req.toMod()
	if err := data.Create(); err != nil {
		return officialwebsitemod.Job{}, err
	}
	return data, nil
}

func UpdateJobList(req *ModifyJobReq) (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.Job{}
	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 DeleteJobList(req *DeleteJobReq) (data DeleteJobResp, 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.Job{}
	data.Count, err = mod.Delete(officialwebsitemod.M{"_id": id})
	return
}

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

type ModifyJobReq struct {
	ID           string             `json:"id" form:"id"`
	Title        *string            `json:"title"`
	Description  *string            `json:"description"`
	Requirements *string            `json:"requirements"`
	Benefits     *string            `json:"benefits"`
	JDUrl        *string            `json:"jdUrl"`
	Sort         *int64             `json:"sort"`
	IsActive     *bool              `json:"isActive"`
}

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

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

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

// ─────────────────────────────────────────
// toMod — ModifyJobReq → model struct
// ─────────────────────────────────────────

func (req *ModifyJobReq) toMod() officialwebsitemod.Job {
	if req == nil {
		return officialwebsitemod.Job{}
	}
	return officialwebsitemod.Job{
		Title:        stringOrZero(req.Title),
		Description:  stringOrZero(req.Description),
		Requirements: stringOrZero(req.Requirements),
		Benefits:     stringOrZero(req.Benefits),
		JDUrl:        stringOrZero(req.JDUrl),
		SortModel: officialwebsitemod.SortModel{
			Sort:     int64OrZero(req.Sort),
			IsActive: boolOrZero(req.IsActive),
		},
	}
}

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

func (req *ModifyJobReq) 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.Requirements != nil {
		set["requirements"] = *req.Requirements
	}
	if req.Benefits != nil {
		set["benefits"] = *req.Benefits
	}
	if req.JDUrl != nil {
		set["jdUrl"] = *req.JDUrl
	}
	if req.Sort != nil {
		set["sort"] = *req.Sort
	}
	if req.IsActive != nil {
		set["isActive"] = *req.IsActive
	}
	if len(set) == 0 {
		return nil, nil
	}
	set["updatedAt"] = time.Now().UTC()
	return officialwebsitemod.M{"$set": set}, nil
}

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

type JobListReq struct {
	PageReq
	ID           *string    `form:"id"`
	Title        *string    `form:"title"`
	Description  *string    `form:"description"`
	Requirements *string    `form:"requirements"`
	Benefits     *string    `form:"benefits"`
	JDUrl        *string    `form:"jdUrl"`
	Sort         *int64     `form:"sort"`
	IsActive     *bool      `form:"isActive"`
	CreatedAt    *time.Time `form:"createdAt"`
	UpdatedAt    *time.Time `form:"updatedAt"`
	DeletedAt    *time.Time `form:"deletedAt"`
}

func (r *JobListReq) 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.Requirements != nil {
		filter["requirements"] = *r.Requirements
	}
	if r.Benefits != nil {
		filter["benefits"] = *r.Benefits
	}
	if r.JDUrl != nil {
		filter["jdUrl"] = *r.JDUrl
	}
	if r.Sort != nil {
		filter["sort"] = *r.Sort
	}
	if r.IsActive != nil {
		filter["isActive"] = *r.IsActive
	}
	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
}