package persistence

import (
	"fmt"

	"offline_twitter/scraper"
)

/**
 * Save a Retweet.  Do nothing if it already exists, because none of its parameters are modifiable.
 */
func (p Profile) SaveRetweet(r scraper.Retweet) error {
	_, err := p.DB.Exec(`
			insert into retweets (retweet_id, tweet_id, retweeted_by, retweeted_at)
			values (?, ?, ?, ?)
			    on conflict do nothing
		`,
		r.RetweetID, r.TweetID, r.RetweetedByID, r.RetweetedAt.Unix(),
	)
	if err != nil {
		return fmt.Errorf("Error executing SaveRetweet(%d):\n  %w", r.RetweetID, err)
	}
	return nil
}

/**
 * Retrieve a Retweet by ID
 */
func (p Profile) GetRetweetById(id scraper.TweetID) (scraper.Retweet, error) {
	var r scraper.Retweet
	err := p.DB.Get(&r, `
		select retweet_id, tweet_id, retweeted_by, retweeted_at
		  from retweets
		 where retweet_id = ?
	`, id)
	if err != nil {
		return r, fmt.Errorf("Error executing GetRetweetById(%d):\n  %w", id, err)
	}
	return r, nil
}