// Code generated by go-swagger; DO NOT EDIT.

package models

// This file was generated by the swagger tool.
// Editing this file might prove futile when you re-run the swagger generate command

import (
	strfmt "github.com/go-openapi/strfmt"

	"github.com/go-openapi/errors"
	"github.com/go-openapi/swag"
	"github.com/go-xorm/builder"
	"github.com/go-xorm/xorm"
	"time"
)

// ReplacementLesson replacement lesson
// swagger:model ReplacementLesson

type ReplacementLesson struct {

	// ID
	ID int64 `json:"id,omitempty" xorm:"pk autoincr"`

	// date
	Date     strfmt.Date `json:"date,omitempty" xorm:"-"`
	DateUnix int64       `json:"-"`

	// lesson
	Lesson   *Lesson `json:"lesson,omitempty" xorm:"-"`
	LessonID int64   `json:"-" xorm:"INDEX"`

	// replacement lesson
	ReplacementLesson   *Lesson `json:"replacementLesson,omitempty" xorm:"-"`
	ReplacementLessonID int64   `json:"-" xorm:"INDEX"`
}

// AfterSet is invoked from XORM after setting the value of a field of this object.
func (m *ReplacementLesson) AfterSet(colName string, _ xorm.Cell) {
	switch colName {
	case "date_unix":
		m.Date = strfmt.Date(time.Unix(m.DateUnix, 0).Local())
	}
}

// BerforeUpdate will be invoked by XORM before updating a record
// representing this object.
func (m *ReplacementLesson) BeforeUpdate() {
	m.DateUnix = time.Time(m.Date).Unix()
}

// BeforeInsert will be invoked by XORM before inserting a record
// representing this object.
func (m *ReplacementLesson) BeforeInsert() {
	m.DateUnix = time.Time(m.Date).Unix()
}

/* polymorph ReplacementLesson ID false */

/* polymorph ReplacementLesson date false */

/* polymorph ReplacementLesson lesson false */

/* polymorph ReplacementLesson replacementLesson false */

type FindReplacementLessonsOptions struct {
	StartDate time.Time
	EndDate   time.Time
	Date      time.Time
	Course    string
}

func GetReplacementLessonByID(id int64) (*ReplacementLesson, error) {
	return getReplacementLessonByID(x, id)
}

func getReplacementLessonByID(e *xorm.Engine, id int64) (*ReplacementLesson, error) {
	rle := new(ReplacementLesson)
	if ok, err := e.Id(id).Get(rle); err != nil || !ok {
		return nil, err
	}
	if err := rle.GetLesson(); err != nil {
		return nil, err
	}
	if err := rle.GetReplacementLesson(); err != nil {
		return nil, err
	}
	return rle, nil
}

func (opts *FindReplacementLessonsOptions) ToCond() builder.Cond {
	cond := builder.NewCond()

	if !opts.Date.IsZero() {
		cond = cond.And(builder.Eq{"date_unix": opts.Date.Unix()})
	} else {
		if !opts.StartDate.IsZero() {
			cond = cond.And(builder.Gte{"date_unix": opts.StartDate.Unix()})
		}
		if !opts.EndDate.IsZero() {
			cond = cond.And(builder.Lte{"date_unix": opts.EndDate.Unix()})
		}
	}
	return cond
}

func findReplacementLessons(e *xorm.Engine, options *FindReplacementLessonsOptions) (lessons []*ReplacementLesson, err error) {
	if options.Course != "" {
		err = e.Join("INNER", "lesson", "lesson.id = replacement_lesson.lesson_id and lesson.course = ?", options.Course).Where(options.ToCond()).Find(&lessons)
	} else {
		err = e.Where(options.ToCond()).Find(&lessons)
	}
	if err != nil {
		return
	}
	for _, lesson := range lessons {
		if err = lesson.GetLesson(); err != nil {
			return
		}
		if err = lesson.GetReplacementLesson(); err != nil {
			return
		}
	}
	return
}

func FindReplacementLessons(options *FindReplacementLessonsOptions) ([]*ReplacementLesson, error) {
	return findReplacementLessons(x, options)
}

func (m *ReplacementLesson) getLesson(e *xorm.Engine) (err error) {
	if m.Lesson != nil {
		return nil
	}
	m.Lesson, err = getLessonByID(e, m.LessonID)
	return
}

// GetLesson returns the lesson of the replacement lesson
func (m *ReplacementLesson) GetLesson() error {
	return m.getLesson(x)
}

func (m *ReplacementLesson) getReplacementLesson(e *xorm.Engine) (err error) {
	if m.ReplacementLesson != nil {
		return nil
	}
	m.ReplacementLesson, err = getLessonByID(e, m.ReplacementLessonID)
	return
}

// GetLesson returns the replacement lesson of the replacement lesson
func (m *ReplacementLesson) GetReplacementLesson() error {
	return m.getReplacementLesson(x)
}

// Validate validates this replacement lesson
func (m *ReplacementLesson) Validate(formats strfmt.Registry) error {
	var res []error

	if err := m.validateLesson(formats); err != nil {
		// prop
		res = append(res, err)
	}

	if err := m.validateReplacementLesson(formats); err != nil {
		// prop
		res = append(res, err)
	}

	if len(res) > 0 {
		return errors.CompositeValidationError(res...)
	}
	return nil
}

func (m *ReplacementLesson) validateLesson(formats strfmt.Registry) error {

	if swag.IsZero(m.Lesson) { // not required
		return nil
	}

	if m.Lesson != nil {

		if err := m.Lesson.Validate(formats); err != nil {
			if ve, ok := err.(*errors.Validation); ok {
				return ve.ValidateName("lesson")
			}
			return err
		}
	}

	return nil
}

func (m *ReplacementLesson) validateReplacementLesson(formats strfmt.Registry) error {

	if swag.IsZero(m.ReplacementLesson) { // not required
		return nil
	}

	if m.ReplacementLesson != nil {

		if err := m.ReplacementLesson.Validate(formats); err != nil {
			if ve, ok := err.(*errors.Validation); ok {
				return ve.ValidateName("replacementLesson")
			}
			return err
		}
	}

	return nil
}

// MarshalBinary interface implementation
func (m *ReplacementLesson) MarshalBinary() ([]byte, error) {
	if m == nil {
		return nil, nil
	}
	return swag.WriteJSON(m)
}

// UnmarshalBinary interface implementation
func (m *ReplacementLesson) UnmarshalBinary(b []byte) error {
	var res ReplacementLesson
	if err := swag.ReadJSON(b, &res); err != nil {
		return err
	}
	*m = res
	return nil
}