package service

import (
	"errors"
	"strings"

	"github.com/sirupsen/logrus"
	"myschools.me/heritage/heritage-api/model"
	"myschools.me/heritage/heritage-api/mysql"
)

func PointCreatePoint(p *model.Point) (*model.Point, error) {
	if p == nil {
		return nil, errors.New("invalid point")
	}
	p.ID = strings.TrimSpace(p.ID)
	if p.ID == "" {
		p.ID = newID()
	}
	p.Name = strings.TrimSpace(p.Name)
	p.LocationObjectID = strings.TrimSpace(p.LocationObjectID)
	p.StatusCode = strings.TrimSpace(p.StatusCode)
	p.Image = strings.TrimSpace(p.Image)
	p.ObjectID = strings.TrimSpace(p.ObjectID)
	p.IndicatorID = strings.TrimSpace(p.IndicatorID)
	p.CreatorPersonID = strings.TrimSpace(p.CreatorPersonID)
	p.SensorID = strings.TrimSpace(p.SensorID)
	p.CreatedTaskID = strings.TrimSpace(p.CreatedTaskID)
	p.Remark = strings.TrimSpace(p.Remark)

	if p.Name == "" || p.StatusCode == "" || p.ObjectID == "" || p.IndicatorID == "" || p.CreatorPersonID == "" {
		return nil, errors.New("missing required fields")
	}
	if p.Image == "" {
		p.Image = ""
	}

	if err := mysql.PointCreate(p); err != nil {
		logrus.WithFields(logrus.Fields{
			"func": "PointCreatePoint",
		}).Warnf("mysql.PointCreate: %v", err)
		return nil, err
	}
	return p, nil
}

func PointUpdatePoint(idv string, patch *model.Point) (*model.Point, error) {
	pid := strings.TrimSpace(idv)
	if pid == "" {
		return nil, ErrNotFound
	}
	existing, found, err := mysql.PointByID(&pid)
	if err != nil {
		logrus.WithFields(logrus.Fields{
			"func": "PointUpdatePoint",
		}).Warnf("mysql.PointByID: %v", err)
		return nil, err
	}
	if !found || existing == nil {
		logrus.WithFields(logrus.Fields{
			"func": "PointUpdatePoint",
		}).Warnf("mysql.PointByID: not found")
		return nil, ErrNotFound
	}
	if patch == nil {
		return existing, nil
	}
	if s := strings.TrimSpace(patch.Name); s != "" {
		existing.Name = s
	}
	existing.X = patch.X
	existing.Y = patch.Y
	existing.Z = patch.Z
	if s := strings.TrimSpace(patch.LocationObjectID); s != "" {
		existing.LocationObjectID = s
	}
	if s := strings.TrimSpace(patch.StatusCode); s != "" {
		existing.StatusCode = s
	}
	if s := strings.TrimSpace(patch.Image); s != "" {
		existing.Image = s
	}
	if s := strings.TrimSpace(patch.ObjectID); s != "" {
		existing.ObjectID = s
	}
	if s := strings.TrimSpace(patch.IndicatorID); s != "" {
		existing.IndicatorID = s
	}
	if s := strings.TrimSpace(patch.CreatorPersonID); s != "" {
		existing.CreatorPersonID = s
	}
	if s := strings.TrimSpace(patch.SensorID); s != "" {
		existing.SensorID = s
	}
	if s := strings.TrimSpace(patch.CreatedTaskID); s != "" {
		existing.CreatedTaskID = s
	}
	if s := strings.TrimSpace(patch.Remark); s != "" {
		existing.Remark = s
	}

	ok, err := mysql.PointUpdate(existing)
	if err != nil {
		logrus.WithFields(logrus.Fields{
			"func": "PointUpdatePoint",
		}).Warnf("mysql.PointUpdate: %v", err)
		return nil, err
	}
	if !ok {
		logrus.WithFields(logrus.Fields{
			"func": "PointUpdatePoint",
		}).Warnf("mysql.PointUpdate: not found")
		return nil, ErrNotFound
	}
	return existing, nil
}

func PointDeletePoint(idv string) error {
	pid := strings.TrimSpace(idv)
	if pid == "" {
		return ErrNotFound
	}
	ok, err := mysql.PointDelete(&pid)
	if err != nil {
		logrus.WithFields(logrus.Fields{
			"func": "PointDeletePoint",
		}).Warnf("mysql.PointDelete: %v", err)
		return err
	}
	if !ok {
		logrus.WithFields(logrus.Fields{
			"func": "PointDeletePoint",
		}).Warnf("mysql.PointDelete: not found")
		return ErrNotFound
	}
	return nil
}

func PointGetPoint(idv string) (*model.Point, error) {
	pid := strings.TrimSpace(idv)
	if pid == "" {
		return nil, ErrNotFound
	}
	p, found, err := mysql.PointByID(&pid)
	if err != nil {
		logrus.WithFields(logrus.Fields{
			"func": "PointGetPoint",
		}).Warnf("mysql.PointByID: %v", err)
		return nil, err
	}
	if !found || p == nil {
		logrus.WithFields(logrus.Fields{
			"func": "PointGetPoint",
		}).Warnf("mysql.PointByID: not found")
		return nil, ErrNotFound
	}
	return p, nil
}

func PointListPoints(objectID, indicatorID, keyword *string, page, size int) ([]model.Point, int64, error) {
	if page < 1 {
		page = 1
	}
	if size < 1 {
		size = 20
	}
	if size > 200 {
		size = 200
	}
	offset := (page - 1) * size
	return mysql.PointList(objectID, indicatorID, keyword, &offset, &size)
}