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package main
import (
"fmt"
"io"
"net/http"
"os"
"strconv"
"strings"
"time"
)
func (a *App) installHTTP(u string) error {
Logger.Println("Installer: loading from url")
resp, err := http.Get(u)
if err != nil {
return fmt.Errorf("Installer: getting %w", err)
}
estSize, err := strconv.ParseInt(resp.Header.Get("Estimated-size"), 10, 64)
if err != nil {
return fmt.Errorf("Failed to convert estimated size header: %w", err)
}
a.Status.Lock()
a.Status.Size = estSize
a.Status.Unlock()
rdr, wrtr := io.Pipe()
go func() {
err = a.Library.Extract(rdr)
if err != nil {
Logger.Printf("Installer: extracting %s", err)
}
resp.Body.Close()
}()
var total int64
start := time.Now()
a.Status.Lock()
a.Status.Start = &start
a.Status.Unlock()
for {
var n int64
n, err = io.CopyN(wrtr, resp.Body, 100*1024*1024)
if err == io.EOF {
break
} else if err != nil {
Logger.Printf("Error encountered read from response body in installer: %s", err)
break
}
total += n
mb := float64(total / 1024 / 1024)
rate := mb / time.Since(start).Seconds()
Logger.Printf("Downloading from %s, Size: %s, %0.1f%% Done, Rate: %.2f mb/s",
u, formatBytes(estSize), float64(total)/float64(estSize)*100, rate)
a.Status.Lock()
a.Status.Transferred = total
a.Status.Unlock()
}
if err == io.EOF {
return nil
}
return err
}
func (a *App) installPath(p string) error {
Logger.Println("Installer: loading from filesystem")
fh, err := os.Open(p)
if err != nil {
return fmt.Errorf("Installer: opening %w", err)
}
err = a.Library.Extract(fh)
if err != nil {
return fmt.Errorf("Installer: opening %w", err)
}
fh.Close()
return nil
}
// installer runs in the background installing games either from a local path or
// a remote URL
func (a *App) installer() {
var err error
for u := range a.download {
a.Status.Lock()
Logger.Printf("Installer: running for URI: %s", u)
a.Status.Running = true
a.Status.Url = u
a.Status.Unlock()
if strings.HasPrefix(u, "http") {
err = a.installHTTP(u)
} else {
err = a.installPath(u)
}
a.Status.Lock()
a.Status.Running = false
a.Status.Error = err
Logger.Printf("Installer: Completed request %s Errors: %s", u, err)
a.Status.Unlock()
a.LibraryReload()
}
}
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