package models

import "time"

// Change represents a change in the rpdata history through the API.
type Change struct {
	ID     string      `bson:"_id"`
	Model  string      `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"`
	Posts      []Post      `bson:"posts"`
}

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

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

	for _, log := range change.Logs {
		data = append(data, log)
	}
	for _, character := range change.Characters {
		data = append(data, character)
	}
	for _, post := range change.Posts {
		data = append(data, post)
	}

	return data
}