package models

import (
	"errors"
	"fmt"
	"reflect"
	"strings"
	"time"

	"github.com/astaxie/beego/orm"
)

type SeriesChapters struct {
	Id                    int                     `orm:"auto"`
	SeriesId              *Series                 `orm:"column(series_id);rel(fk)"`
	Title                 string                  `orm:"column(title)"`
	ChapterNumberAbsolute string                  `orm:"column(chapter_number_absolute)"`
	ChapterNumberVolume   string                  `orm:"column(chapter_number_volume);null"`
	VolumeNumber          string                  `orm:"column(volume_number);null"`
	ChapterLanguage       *Languages              `orm:"column(chapter_language);rel(fk)"`
	ContributorId         *Users                  `orm:"column(contributor_id);rel(fk)"`
	TimeUploaded          time.Time               `orm:"column(time_uploaded);type(timestamp without time zone);auto_now_add"`
	Hash                  string                  `orm:"column(hash)"`
	SeriesChaptersGroups  []*SeriesChaptersGroups `orm:"reverse(many)"`
	SeriesChaptersFiles   []*SeriesChaptersFiles  `orm:"reverse(many)"`
}

func (t *SeriesChapters) TableName() string {
	return "series_chapters"
}

func init() {
	orm.RegisterModel(new(SeriesChapters))
}

func GetSeriesChaptersBySeriesId(id int) (v SeriesChapters, err error) {
	var l SeriesChapters
	o := orm.NewOrm()
	err = o.QueryTable("series_chapters").Filter("series_id", id).RelatedSel().One(&l)

	o.LoadRelated(&l, "SeriesChaptersFiles")
	o.LoadRelated(&l, "SeriesChaptersGroups")
	l.ContributorId.PasswordHash = ""
	l.ContributorId.Email = ""
	return l, nil

}

func GetSeriesChaptersByHash(hash string) (v SeriesChapters, err error) {
	o := orm.NewOrm()
	err = o.QueryTable("series_chapters").Filter("hash", hash).RelatedSel().One(&v)

	v.SeriesChaptersFiles, err = GetAllChapterFilesById(v.Id, 200, 0)
	v.ContributorId.PasswordHash = ""
	v.ContributorId.Email = ""

	o.LoadRelated(&v, "SeriesChaptersGroups")
	return
}

func AddSeriesChapters(m *SeriesChapters) (id int64, err error) {
	o := orm.NewOrm()
	id, err = o.Insert(m)
	return
}

func GetSeriesChaptersById(id int) (v *SeriesChapters, err error) {
	o := orm.NewOrm()
	v = &SeriesChapters{Id: id}
	if err = o.Read(v); err == nil {
		o.LoadRelated(v, "SeriesChaptersFiles")
		o.LoadRelated(v, "SeriesChaptersGroups")
		o.LoadRelated(v, "SeriesId")
		o.LoadRelated(v, "ContributorId")
		v.ContributorId.PasswordHash = ""
		v.ContributorId.Email = ""
		return v, nil
	}

	return nil, err
}

func GetAllSeriesChapters(query map[string]string, fields []string, sortby []string, order []string,
	offset int64, limit int64) (ml []interface{}, count int64, err error) {
	o := orm.NewOrm()
	qs := o.QueryTable(new(SeriesChapters))

	for k, v := range query {

		k = strings.Replace(k, ".", "__", -1)
		if strings.Contains(k, "isnull") {
			qs = qs.Filter(k, (v == "true" || v == "1"))
		} else {
			qs = qs.Filter(k, v)
		}
	}

	var sortFields []string
	if len(sortby) != 0 {
		if len(sortby) == len(order) {

			for i, v := range sortby {
				orderby := ""
				if order[i] == "desc" {
					orderby = "-" + v
				} else if order[i] == "asc" {
					orderby = v
				} else {
					return nil, 0, errors.New("Error: Invalid order. Must be either [asc|desc]")
				}
				sortFields = append(sortFields, orderby)
			}
			qs = qs.OrderBy(sortFields...)
		} else if len(sortby) != len(order) && len(order) == 1 {

			for _, v := range sortby {
				orderby := ""
				if order[0] == "desc" {
					orderby = "-" + v
				} else if order[0] == "asc" {
					orderby = v
				} else {
					return nil, 0, errors.New("Error: Invalid order. Must be either [asc|desc]")
				}
				sortFields = append(sortFields, orderby)
			}
		} else if len(sortby) != len(order) && len(order) != 1 {
			return nil, 0, errors.New("Error: 'sortby', 'order' sizes mismatch or 'order' size is not 1")
		}
	} else {
		if len(order) != 0 {
			return nil, 0, errors.New("Error: unused 'order' fields")
		}
	}

	var l []SeriesChapters
	qs = qs.OrderBy(sortFields...)
	count, _ = qs.Count()
	if _, err = qs.Limit(limit, offset).RelatedSel().All(&l, fields...); err == nil {
		if len(fields) == 0 {

			for _, v := range l {
				o.LoadRelated(&v, "SeriesChaptersFiles")
				o.LoadRelated(&v, "SeriesChaptersGroups")
				v.SeriesId, _ = GetSeriesById(v.SeriesId.Id)
				v.ContributorId.PasswordHash = ""
				v.ContributorId.Email = ""
				ml = append(ml, v)
			}
		} else {

			for _, v := range l {
				m := make(map[string]interface{})
				val := reflect.ValueOf(v)
				for _, fname := range fields {
					m[fname] = val.FieldByName(fname).Interface()
				}
				ml = append(ml, m)
			}
		}
		return ml, count, nil
	}
	return nil, 0, err
}

func UpdateSeriesChaptersById(m *SeriesChapters) (err error) {
	o := orm.NewOrm()
	v := SeriesChapters{Id: m.Id}

	if err = o.Read(&v); err == nil {
		var num int64
		if num, err = o.Update(m); err == nil {
			fmt.Println("Number of records updated in database:", num)
		}
	}
	return
}

func DeleteSeriesChapters(id int) (err error) {
	o := orm.NewOrm()
	v := SeriesChapters{Id: id}

	if err = o.Read(&v); err == nil {
		var num int64
		if num, err = o.Delete(&SeriesChapters{Id: id}); err == nil {
			fmt.Println("Number of records deleted in database:", num)
		}
	}
	return
}
package models

import (
	"errors"
	"fmt"
	"reflect"
	"strings"
	"time"

	"github.com/astaxie/beego/orm"
)

type SeriesChapters struct {
	Id                    int                     `orm:"auto"`
	SeriesId              *Series                 `orm:"column(series_id);rel(fk)"`
	Title                 string                  `orm:"column(title)"`
	ChapterNumberAbsolute string                  `orm:"column(chapter_number_absolute)"`
	ChapterNumberVolume   string                  `orm:"column(chapter_number_volume);null"`
	VolumeNumber          string                  `orm:"column(volume_number);null"`
	ChapterLanguage       *Languages              `orm:"column(chapter_language);rel(fk)"`
	ContributorId         *Users                  `orm:"column(contributor_id);rel(fk)"`
	TimeUploaded          time.Time               `orm:"column(time_uploaded);type(timestamp without time zone);auto_now_add"`
	Hash                  string                  `orm:"column(hash)"`
	SeriesChaptersGroups  []*SeriesChaptersGroups `orm:"reverse(many)"`
	SeriesChaptersFiles   []*SeriesChaptersFiles  `orm:"reverse(many)"`
}

func (t *SeriesChapters) TableName() string {
	return "series_chapters"
}

func init() {
	orm.RegisterModel(new(SeriesChapters))
}

// GetSeriesChaptersBySeriesId retrieves SeriesChapters by Id. Returns error if
// Id doesn't exist
func GetSeriesChaptersBySeriesId(id int) (v SeriesChapters, err error) {
	var l SeriesChapters
	o := orm.NewOrm()
	err = o.QueryTable("series_chapters").Filter("series_id", id).RelatedSel().One(&l)

	o.LoadRelated(&l, "SeriesChaptersFiles")
	o.LoadRelated(&l, "SeriesChaptersGroups")
	l.ContributorId.PasswordHash = ""
	l.ContributorId.Email = ""
	return l, nil

}

// GetSeriesChaptersByHash retrieves SeriesChapters by Id. Returns error if
// Id doesn't exist
func GetSeriesChaptersByHash(hash string) (v SeriesChapters, err error) {
	o := orm.NewOrm()
	err = o.QueryTable("series_chapters").Filter("hash", hash).RelatedSel().One(&v)

	v.SeriesChaptersFiles, err = GetAllChapterFilesById(v.Id, 200, 0)
	v.ContributorId.PasswordHash = ""
	v.ContributorId.Email = ""

	o.LoadRelated(&v, "SeriesChaptersGroups")
	return
}

// AddSeriesChapters insert a new SeriesChapters into database and returns
// last inserted Id on success.
func AddSeriesChapters(m *SeriesChapters) (id int64, err error) {
	o := orm.NewOrm()
	id, err = o.Insert(m)
	return
}

// GetSeriesChaptersById retrieves SeriesChapters by Id. Returns error if
// Id doesn't exist
func GetSeriesChaptersById(id int) (v *SeriesChapters, err error) {
	o := orm.NewOrm()
	v = &SeriesChapters{Id: id}
	if err = o.Read(v); err == nil {
		o.LoadRelated(v, "SeriesChaptersFiles")
		o.LoadRelated(v, "SeriesChaptersGroups")
		o.LoadRelated(v, "SeriesId")
		o.LoadRelated(v, "ContributorId")
		v.ContributorId.PasswordHash = ""
		v.ContributorId.Email = ""
		return v, nil
	}

	return nil, err
}

// GetAllSeriesChapters retrieves all SeriesChapters matches certain condition. Returns empty list if
// no records exist
func GetAllSeriesChapters(query map[string]string, fields []string, sortby []string, order []string,
	offset int64, limit int64) (ml []interface{}, count int64, err error) {
	o := orm.NewOrm()
	qs := o.QueryTable(new(SeriesChapters))
	// query k=v
	for k, v := range query {
		// rewrite dot-notation to Object__Attribute
		k = strings.Replace(k, ".", "__", -1)
		if strings.Contains(k, "isnull") {
			qs = qs.Filter(k, (v == "true" || v == "1"))
		} else {
			qs = qs.Filter(k, v)
		}
	}
	// order by:
	var sortFields []string
	if len(sortby) != 0 {
		if len(sortby) == len(order) {
			// 1) for each sort field, there is an associated order
			for i, v := range sortby {
				orderby := ""
				if order[i] == "desc" {
					orderby = "-" + v
				} else if order[i] == "asc" {
					orderby = v
				} else {
					return nil, 0, errors.New("Error: Invalid order. Must be either [asc|desc]")
				}
				sortFields = append(sortFields, orderby)
			}
			qs = qs.OrderBy(sortFields...)
		} else if len(sortby) != len(order) && len(order) == 1 {
			// 2) there is exactly one order, all the sorted fields will be sorted by this order
			for _, v := range sortby {
				orderby := ""
				if order[0] == "desc" {
					orderby = "-" + v
				} else if order[0] == "asc" {
					orderby = v
				} else {
					return nil, 0, errors.New("Error: Invalid order. Must be either [asc|desc]")
				}
				sortFields = append(sortFields, orderby)
			}
		} else if len(sortby) != len(order) && len(order) != 1 {
			return nil, 0, errors.New("Error: 'sortby', 'order' sizes mismatch or 'order' size is not 1")
		}
	} else {
		if len(order) != 0 {
			return nil, 0, errors.New("Error: unused 'order' fields")
		}
	}

	var l []SeriesChapters
	qs = qs.OrderBy(sortFields...)
	count, _ = qs.Count()
	if _, err = qs.Limit(limit, offset).RelatedSel().All(&l, fields...); err == nil {
		if len(fields) == 0 {

			for _, v := range l {
				o.LoadRelated(&v, "SeriesChaptersFiles")
				o.LoadRelated(&v, "SeriesChaptersGroups")
				v.SeriesId, _ = GetSeriesById(v.SeriesId.Id)
				v.ContributorId.PasswordHash = ""
				v.ContributorId.Email = ""
				ml = append(ml, v)
			}
		} else {
			// trim unused fields
			for _, v := range l {
				m := make(map[string]interface{})
				val := reflect.ValueOf(v)
				for _, fname := range fields {
					m[fname] = val.FieldByName(fname).Interface()
				}
				ml = append(ml, m)
			}
		}
		return ml, count, nil
	}
	return nil, 0, err
}

// UpdateSeriesChapters updates SeriesChapters by Id and returns error if
// the record to be updated doesn't exist
func UpdateSeriesChaptersById(m *SeriesChapters) (err error) {
	o := orm.NewOrm()
	v := SeriesChapters{Id: m.Id}
	// ascertain id exists in the database
	if err = o.Read(&v); err == nil {
		var num int64
		if num, err = o.Update(m); err == nil {
			fmt.Println("Number of records updated in database:", num)
		}
	}
	return
}

// DeleteSeriesChapters deletes SeriesChapters by Id and returns error if
// the record to be deleted doesn't exist
func DeleteSeriesChapters(id int) (err error) {
	o := orm.NewOrm()
	v := SeriesChapters{Id: id}
	// ascertain id exists in the database
	if err = o.Read(&v); err == nil {
		var num int64
		if num, err = o.Delete(&SeriesChapters{Id: id}); err == nil {
			fmt.Println("Number of records deleted in database:", num)
		}
	}
	return
}
