package models

import "time"

// Change represents a change in the rpdata history through the API.
type Change struct {
	ID     string      `bson:"_id"`
	Model  ChangeModel `bson:"model"`
	Op     string      `bson:"op"`
	Author string      `bson:"author"`
	Listed bool        `bson:"listed"`
	Keys   []ChangeKey `bson:"keys"`
	Date   time.Time   `bson:"date"`

	Logs       []Log       `bson:"logs"`
	Characters []Character `bson:"characters"`
	Channels   []Channel   `bson:"channels"`
	Posts      []Post      `bson:"posts"`
	Stories    []Story     `bson:"stories"`
	Tags       []Tag       `bson:"tags"`
	Chapters   []Chapter   `bson:"chapters"`
	Comments   []Comment   `bson:"comments"`
}

// ChangeKey is a key for a change that can be used when subscribing to them.
type ChangeKey struct {
	Model ChangeModel `bson:"model"`
	ID    string      `bson:"id"`
}

// Objects makes a combined, mixed array of all the models stored in this change.
func (change *Change) Objects() []interface{} {
	data := make([]interface{}, 0, len(change.Logs)+len(change.Characters)+len(change.Channels)+len(change.Posts)+len(change.Stories)+len(change.Tags)+len(change.Chapters)+len(change.Comments))

	for _, log := range change.Logs {
		data = append(data, log)
	}
	for _, channel := range change.Channels {
		data = append(data, channel)
	}
	for _, character := range change.Characters {
		data = append(data, character)
	}
	for _, post := range change.Posts {
		data = append(data, post)
	}
	for _, story := range change.Stories {
		data = append(data, story)
	}
	for _, tag := range change.Tags {
		data = append(data, tag)
	}
	for _, chapter := range change.Chapters {
		data = append(data, chapter)
	}
	for _, comment := range change.Comments {
		data = append(data, comment)
	}

	return data
}