hacker-quotes/cmd/server.go

106 lines
2.1 KiB
Go

package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"net/http"
"github.com/zorchenhimer/hacker-quotes"
"github.com/zorchenhimer/hacker-quotes/database"
"github.com/zorchenhimer/hacker-quotes/frontend"
)
func main() {
settings, err := loadSettings("settings.json")
if err != nil {
fmt.Printf("Unable to load settings: %s\n", err)
os.Exit(1)
}
db, err := database.New(settings.DatabaseType, settings.ConnectionString)
if err != nil {
fmt.Printf("Unable to load database type %s: %s\n", settings.DatabaseType, err)
os.Exit(1)
}
hack, err := hacker.NewEnglish(db)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
if db.IsNew() {
fmt.Println("database is new")
err = hack.InitData("word_lists.json")
if err != nil {
fmt.Println(err)
os.Exit(1)
}
} else {
fmt.Println("database isn't new")
}
web, err := frontend.New(hack)
if err != nil {
fmt.Printf("Unable to load frontend: %s\n", err)
os.Exit(1)
}
mux := http.NewServeMux()
//mux.Handle("/api", api)
mux.Handle("/", web)
hs := &http.Server{
Addr: ":8080",
Handler: mux,
}
if err := hs.ListenAndServe(); err != nil && err != http.ErrServerClosed {
fmt.Println("Error running HTTP server:", err)
}
}
type settings struct {
DatabaseType database.DbType
ConnectionString string
HttpAddr string
}
func loadSettings(filename string) (*settings, error) {
if !fileExists(filename) {
return nil, fmt.Errorf("%q doesn't exist", filename)
//return &settings{
// HttpAddr: ":8080",
//}, nil
}
raw, err := ioutil.ReadFile(filename)
if err != nil {
return nil, fmt.Errorf("Error reading file: %s", err)
}
s := &settings{}
if err = json.Unmarshal(raw, s); err != nil {
return nil, fmt.Errorf("Error unmarshaling: %s", err)
}
return s, nil
}
// fileExists returns whether the given file or directory exists or not.
// Taken from https://stackoverflow.com/a/10510783
func fileExists(path string) bool {
_, err := os.Stat(path)
if err == nil {
return true
}
if os.IsNotExist(err) {
return false
}
return true
}