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package main
import (
"fmt"
"os"
bolt "go.etcd.io/bbolt"
"github.com/go-redis/redis/v7"
"github.com/valyala/fasthttp"
"toast.cafe/x/brpaste/v2/http"
"toast.cafe/x/brpaste/v2/storage"
"toast.cafe/x/libuconf"
)
var s settings
type settings struct {
Bind string
Bolt string
Redis string
Storage string
}
func main() {
// ---- Flags
ops := &libuconf.OptionSet{AppName: "brpaste"}
ops.StringVar(&s.Bind, "bind", ":8080", "address to bind to")
ops.StringVar(&s.Bolt, "bolt", "brpaste.db", "bolt database file to use")
ops.StringVar(&s.Redis, "redis", "redis://localhost:6379", "redis connection string")
ops.StringVar(&s.Storage, "storage", "bolt", "type of storage to use")
ops.ParseEnv()
ops.ParseFlags(os.Args[1:])
// ---- Storage system
var store storage.CHR
switch s.Storage {
case "memory":
store = storage.NewMemory()
case "redis":
redisOpts, err := redis.ParseURL(s.Redis)
if err != nil {
fmt.Fprintf(os.Stderr, "Could not parse redis connection string %s\n", s.Redis)
os.Exit(1)
}
client := redis.NewClient(redisOpts)
store = (*storage.Redis)(client)
case "bolt":
db, err := bolt.Open(s.Bolt, 0600, nil)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to open/create boltdb database at %s\n", s.Bolt)
os.Exit(1)
}
store, err = storage.OpenBolt(db)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to initialize boltdb database at %s: %s\n", s.Bolt, err)
os.Exit(1)
}
defer db.Close()
default:
fmt.Fprintf(os.Stderr, "Could not figure out which storage system to use, tried %s\n", s.Storage)
os.Exit(1)
}
// ---- Is storage healthy?
if !store.Healthy() {
fmt.Fprintf(os.Stderr, "Storage is unhealthy, cannot proceed.\n")
os.Exit(1)
}
// ---- Start!
handler := http.GenHandler(store)
fasthttp.ListenAndServe(s.Bind, handler)
}
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