Project restructure (#18)

* First pass at restructuring the project; untested but it does compile

* Restructure builds and runs 🎉

* Add the dist folder to the gitignore

* Update core/playlist/monitor.go

* golint and reorganize the monitor.go file

Co-authored-by: Gabe Kangas <gabek@real-ity.com>

core/core.go

@@ -0,0 +1,76 @@
+package core
+
+import (
+	"os"
+	"path"
+	"strconv"
+
+	log "github.com/sirupsen/logrus"
+
+	"github.com/gabek/owncast/config"
+	"github.com/gabek/owncast/core/ffmpeg"
+	"github.com/gabek/owncast/models"
+	"github.com/gabek/owncast/utils"
+)
+
+var (
+	_stats   *models.Stats
+	_storage models.ChunkStorageProvider
+)
+
+//Start starts up the core processing
+func Start() error {
+	resetDirectories()
+
+	if err := setupStats(); err != nil {
+		log.Println("failed to setup the stats")
+		return err
+	}
+
+	if err := setupStorage(); err != nil {
+		log.Println("failed to setup the storage")
+		return err
+	}
+
+	if err := createInitialOfflineState(); err != nil {
+		log.Println("failed to create the initial offline state")
+		return err
+	}
+
+	return nil
+}
+
+func createInitialOfflineState() error {
+	// Provide default files
+	if !utils.DoesFileExists("webroot/thumbnail.jpg") {
+		if err := utils.Copy("static/logo.png", "webroot/thumbnail.jpg"); err != nil {
+			return err
+		}
+	}
+
+	return ffmpeg.ShowStreamOfflineState()
+}
+
+func resetDirectories() {
+	log.Println("Resetting file directories to a clean slate.")
+
+	// Wipe the public, web-accessible hls data directory
+	os.RemoveAll(config.Config.PublicHLSPath)
+	os.RemoveAll(config.Config.PrivateHLSPath)
+	os.MkdirAll(config.Config.PublicHLSPath, 0777)
+	os.MkdirAll(config.Config.PrivateHLSPath, 0777)
+
+	// Remove the previous thumbnail
+	os.Remove("webroot/thumbnail.jpg")
+
+	// Create private hls data dirs
+	if !config.Config.VideoSettings.EnablePassthrough || len(config.Config.VideoSettings.StreamQualities) == 0 {
+		for index := range config.Config.VideoSettings.StreamQualities {
+			os.MkdirAll(path.Join(config.Config.PrivateHLSPath, strconv.Itoa(index)), 0777)
+			os.MkdirAll(path.Join(config.Config.PublicHLSPath, strconv.Itoa(index)), 0777)
+		}
+	} else {
+		os.MkdirAll(path.Join(config.Config.PrivateHLSPath, strconv.Itoa(0)), 0777)
+		os.MkdirAll(path.Join(config.Config.PublicHLSPath, strconv.Itoa(0)), 0777)
+	}
+}