package models

import "time"

// A Story is user content that does not have a wiki-suitable format. Documents, new stories, short stories, and so on.
// The story model is a container for multiple chapters this time, in contrast to the previous version.
type Story struct {
	ID                  string        `bson:"_id"`
	Author              string        `bson:"author"`
	Name                string        `bson:"name"`
	Category            StoryCategory `bson:"category"`
	Open                bool          `bson:"open"`
	Listed              bool          `bson:"listed"`
	Tags                []Tag         `bson:"tags"`
	CreatedDate         time.Time     `bson:"createdDate"`
	FictionalDate       time.Time     `bson:"fictionalDate,omitempty"`
	UpdatedDate         time.Time     `bson:"updatedDate"`
	SortByFictionalDate bool          `bson:"sortByFictionalDate"`
}

func (story *Story) ApplyUpdate(update StoryUpdate) {
	if update.Name != nil {
		story.Name = *update.Name
	}
	if update.Category != nil {
		story.Category = *update.Category
	}
	if update.Author != nil {
		story.Author = *update.Author
	}
	if update.Open != nil {
		story.Open = *update.Open
	}
	if update.Listed != nil {
		story.Listed = *update.Listed
	}
	if update.SortByFictionalDate != nil {
		story.SortByFictionalDate = *update.SortByFictionalDate
	}
	if update.FictionalDate != nil {
		story.FictionalDate = *update.FictionalDate
	}
	if update.UpdatedDate != nil {
		story.UpdatedDate = *update.UpdatedDate
	}
}

// IsChangeObject is an interface implementation to identify it as a valid
// ChangeObject in GQL.
func (_ *Story) IsChangeObject() {
	panic("this method is a dummy, and so is its caller")
}

type StoryFilter struct {
	Author                *string
	Tags                  []Tag
	EarliestFictionalDate time.Time
	LatestFictionalDate   time.Time
	Category              *StoryCategory
	Open                  *bool
	Unlisted              *bool
	Limit                 int
}

type StoryUpdate struct {
	Name                *string
	Category            *StoryCategory
	Author              *string
	Open                *bool
	Listed              *bool
	FictionalDate       *time.Time
	UpdatedDate         *time.Time
	SortByFictionalDate *bool
}