86 lines
2.5 KiB
Go
Executable file
86 lines
2.5 KiB
Go
Executable file
package main
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import (
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"io/ioutil"
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"log"
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"net/http"
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"os"
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"path/filepath"
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)
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// Stream Unexported
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type Stream struct {
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URL string
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base64 string
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streamDirPath string
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}
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// NewStream creates a new Stream Object
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func NewStream(URL string) Stream {
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base64 := URLToBase64(URL)
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streamDirPath := filepath.Join(".", "streams", base64)
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return Stream{
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URL: URL,
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base64: base64,
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streamDirPath: streamDirPath,
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}
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}
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// GetStreamInstant http.Get(URL) and returns the response
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func (s Stream) GetStreamInstant(URL string) []byte {
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resp, err := http.Get(URL)
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if err != nil {
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log.Fatal(err)
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}
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img, err := ioutil.ReadAll(resp.Body)
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defer resp.Body.Close()
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return img
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}
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// SaveStreamInstant writes the img to the CurrentStreamInstantPath, moves existing instant to PreviousStreamInstantPath
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func (s Stream) SaveStreamInstant(URL string, img []byte) {
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streamDir := URLToBase64(URL)
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streamStoreDir := filepath.Join(".", "streams", string(streamDir))
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os.MkdirAll(streamStoreDir, os.ModePerm)
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currentStreamInstantPath := filepath.Join(streamStoreDir, "current.jpg")
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swap := FileExists(streamStoreDir)
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if swap {
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currentStreamInstantPath = filepath.Join(streamStoreDir, "next.jpg")
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}
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err := ioutil.WriteFile(currentStreamInstantPath, img, os.ModePerm)
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if err != nil {
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log.Fatal("Can't write latest stream instant.")
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}
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if swap {
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previousStreamInstantPath := filepath.Join(streamStoreDir, "previous.jpg")
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nextStreamInstantPath := currentStreamInstantPath
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currentStreamInstantPath = filepath.Join(streamStoreDir, "current.jpg")
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err = os.Rename(currentStreamInstantPath, previousStreamInstantPath)
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err = os.Rename(nextStreamInstantPath, currentStreamInstantPath)
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}
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}
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// GetStreamDirPath returns filepath.Join(".", "streams")
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func (s Stream) GetStreamDirPath() string {
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return filepath.Join(".", "streams")
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}
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// GetPreviousInstantPath returns filepath.Join(GetStreamDirPath(), s.base64, "previous.jpg")
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func (s Stream) GetPreviousInstantPath() string {
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return filepath.Join(s.GetStreamDirPath(), s.base64, "previous.jpg")
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}
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// GetCurrentInstantPath returns filepath.Join(s.GetStreamDirPath(), s.base64, "current.jpg")
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func (s Stream) GetCurrentInstantPath() string {
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return filepath.Join(s.GetStreamDirPath(), s.base64, "current.jpg")
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}
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// GetLastInstantPath returns filepath.Join(s.GetStreamDirPath(), s.base64, "last.jpg")
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func (s Stream) GetLastInstantPath() string {
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return filepath.Join(s.GetStreamDirPath(), s.base64, "last.jpg")
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}
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