101 lines
2.2 KiB
Go
101 lines
2.2 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"io/fs"
|
|
"log"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"git.yetaga.in/alazyreader/library/book"
|
|
"git.yetaga.in/alazyreader/library/config"
|
|
"git.yetaga.in/alazyreader/library/database"
|
|
"git.yetaga.in/alazyreader/library/frontend"
|
|
"github.com/kelseyhightower/envconfig"
|
|
)
|
|
|
|
func max(a, b int) int {
|
|
if a > b {
|
|
return a
|
|
}
|
|
return b
|
|
}
|
|
|
|
type Library interface {
|
|
GetAllBooks(context.Context) ([]book.Book, error)
|
|
}
|
|
|
|
type Router struct {
|
|
static fs.FS
|
|
lib Library
|
|
}
|
|
|
|
func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
|
|
if req.URL.Path == "/api" {
|
|
APIHandler(r.lib).ServeHTTP(w, req)
|
|
return
|
|
}
|
|
StaticHandler(r.static).ServeHTTP(w, req)
|
|
}
|
|
|
|
func APIHandler(l Library) http.Handler {
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
books, err := l.GetAllBooks(r.Context())
|
|
if err != nil {
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
b, err := json.Marshal(books)
|
|
if err != nil {
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
w.Header().Set("Content-Type", "application/json")
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write(b)
|
|
w.Write([]byte("\n"))
|
|
})
|
|
}
|
|
|
|
func StaticHandler(f fs.FS) http.Handler {
|
|
return http.FileServer(http.FS(f))
|
|
}
|
|
|
|
func main() {
|
|
var c config.Config
|
|
err := envconfig.Process("library", &c)
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
f, err := frontend.Root()
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
if c.DBUser == "" || c.DBPass == "" || c.DBHost == "" || c.DBPort == "" || c.DBName == "" {
|
|
if c.DBPass != "" { // obscure password
|
|
c.DBPass = c.DBPass[0:max(3, len(c.DBPass))] + strings.Repeat("*", max(0, len(c.DBPass)-3))
|
|
}
|
|
log.Fatalf("vars: %+v", c)
|
|
}
|
|
lib, err := database.NewMySQLConnection(c.DBUser, c.DBPass, c.DBHost, c.DBPort, c.DBName)
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
err = lib.PrepareDatabase(context.Background())
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
latest, run, err := lib.RunMigrations(context.Background())
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
log.Printf("latest migration: %d; migrations run: %d", latest, run)
|
|
r := &Router{
|
|
static: f,
|
|
lib: lib,
|
|
}
|
|
log.Println("Listening on http://localhost:8080/")
|
|
log.Fatalln(http.ListenAndServe(":8080", r))
|
|
}
|