initial commit

lib/runner.go

@@ -0,0 +1,80 @@
+package lib
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"time"
+)
+
+type Runner struct {
+	youtube  *Youtube
+	facebook *Facebook
+	linkedin *Linkedin
+	cache    *Cache
+}
+
+func NewRunner() (*Runner, error) {
+	channelID := os.Getenv("YOUTUBE_CHANNEL_ID")
+	if channelID == "" {
+		return nil, fmt.Errorf("YOUTUBE_CHANNEL_ID is required")
+	}
+
+	cacheFile := os.Getenv("CACHE_FILE_PATH")
+	if cacheFile == "" {
+		cacheFile = "/data/cache.csv"
+	}
+
+	cache, err := NewCache(cacheFile)
+	if err != nil {
+		return nil, fmt.Errorf("cache init: %w", err)
+	}
+
+	return &Runner{
+		youtube:  NewYoutube(channelID),
+		facebook: NewFacebook(os.Getenv("FACEBOOK_ACCESS_TOKEN"), os.Getenv("FACEBOOK_PAGE_ID")),
+		linkedin: NewLinkedin(os.Getenv("LINKEDIN_ACCESS_TOKEN"), os.Getenv("LINKEDIN_AUTHOR_URN")),
+		cache:    cache,
+	}, nil
+}
+
+func (r *Runner) Run() {
+	r.process()
+
+	ticker := time.NewTicker(time.Hour)
+	defer ticker.Stop()
+
+	for range ticker.C {
+		r.process()
+	}
+}
+
+func (r *Runner) process() {
+	log.Println("checking for new YouTube videos")
+
+	videos, err := r.youtube.FetchLatest()
+	if err != nil {
+		log.Printf("youtube fetch error: %v", err)
+		return
+	}
+
+	for _, video := range videos {
+		if r.cache.Has(video.ID) {
+			continue
+		}
+
+		log.Printf("new video: %s", video.Title)
+
+		if err := r.facebook.Post(video); err != nil {
+			log.Printf("facebook post error: %v", err)
+		}
+
+		if err := r.linkedin.Post(video); err != nil {
+			log.Printf("linkedin post error: %v", err)
+		}
+
+		if err := r.cache.Add(video.ID); err != nil {
+			log.Printf("cache write error: %v", err)
+		}
+	}
+}