package models

import (
	"context"
	"time"
)

type Group struct {
	ID       int    `json:"id"`
	Name     string `json:"name"`
	Aliases  string `json:"aliases"`
	Duration *int   `json:"duration"`
	Date     *Date  `json:"date"`
	// Rating expressed in 1-100 scale
	Rating    *int      `json:"rating"`
	StudioID  *int      `json:"studio_id"`
	Director  string    `json:"director"`
	Synopsis  string    `json:"synopsis"`
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`

	URLs   RelatedStrings `json:"urls"`
	TagIDs RelatedIDs     `json:"tag_ids"`

	ContainingGroups RelatedGroupDescriptions `json:"containing_groups"`
	SubGroups        RelatedGroupDescriptions `json:"sub_groups"`
}

func NewGroup() Group {
	currentTime := time.Now()
	return Group{
		CreatedAt: currentTime,
		UpdatedAt: currentTime,
	}
}

func (m *Group) LoadURLs(ctx context.Context, l URLLoader) error {
	return m.URLs.load(func() ([]string, error) {
		return l.GetURLs(ctx, m.ID)
	})
}

func (m *Group) LoadTagIDs(ctx context.Context, l TagIDLoader) error {
	return m.TagIDs.load(func() ([]int, error) {
		return l.GetTagIDs(ctx, m.ID)
	})
}

func (m *Group) LoadContainingGroupIDs(ctx context.Context, l ContainingGroupLoader) error {
	return m.ContainingGroups.load(func() ([]GroupIDDescription, error) {
		return l.GetContainingGroupDescriptions(ctx, m.ID)
	})
}

func (m *Group) LoadSubGroupIDs(ctx context.Context, l SubGroupLoader) error {
	return m.SubGroups.load(func() ([]GroupIDDescription, error) {
		return l.GetSubGroupDescriptions(ctx, m.ID)
	})
}

type GroupPartial struct {
	Name     OptionalString
	Aliases  OptionalString
	Duration OptionalInt
	Date     OptionalDate
	// Rating expressed in 1-100 scale
	Rating           OptionalInt
	StudioID         OptionalInt
	Director         OptionalString
	Synopsis         OptionalString
	URLs             *UpdateStrings
	TagIDs           *UpdateIDs
	ContainingGroups *UpdateGroupDescriptions
	SubGroups        *UpdateGroupDescriptions
	CreatedAt        OptionalTime
	UpdatedAt        OptionalTime
}

func NewGroupPartial() GroupPartial {
	currentTime := time.Now()
	return GroupPartial{
		UpdatedAt: NewOptionalTime(currentTime),
	}
}