Narrow scope of the project

Dropped support for Astronomy Picture of the Day & Bing Photo of the
Day.

I wrote this to get a new wallpaper at every startup or whenever I
wish, in my opinion Unsplash Source is a better option & there is no
point in keeping unused code.

2 files changed, 4 insertions, 208 deletions

diff --git a/README.org b/README.org
index 2020912..5808835 100644
--- a/README.org
+++ b/README.org
@@ -1,7 +1,9 @@
 #+TITLE: Cetus
 
-Cetus is a wallpaper tool written in Go. It can set wallpapers from various
-sources. Default behaviour is to set a random wallpaper.
+Cetus is a wallpaper manager written in Go. It uses [[https://source.unsplash.com/][Unsplash Source]] to get
+wallpapers.
+
+*Note*: Cetus is a work in-progress & many features are yet to be implemented.
 
 * Uses
 - on system startup for new wallpaper at every startup
@@ -13,76 +15,5 @@ demo videos someday.
 | Version | Video                                                                |
 |---------+----------------------------------------------------------------------|
 | v0.2.0  | https://diode.zone/videos/watch/12db31e1-3517-4888-ad06-55f3859447a1 |
-* Features
-- Set Daily, Weekly or Random wallpaper
-- Supports multiple sources
 * Dependency
 - [[https://feh.finalrewind.org/][feh]]
-* Examples
-** Daily wallpaper
-*** from Astronomy Picture of the Day
-#+BEGIN_SRC sh
-cetus -src=apod -wall=daily
-#+END_SRC
-*** from Bing Photo of the Day
-#+BEGIN_SRC sh
-cetus -src=bpod -wall=daily
-#+END_SRC
-*** from Unsplash Source
-#+BEGIN_SRC sh
-cetus -src=unsplash -wall=daily
-#+END_SRC
-*** from any service (choosen randomly)
-#+BEGIN_SRC sh
-cetus -src=random -wall=daily
-
-cetus -wall=daily # This is same as above
-#+END_SRC
-** Weekly wallpaper
-*** from Unsplash Source
-#+BEGIN_SRC shp
-cetus -src=unsplash -wall=weekly
-#+END_SRC
-** Random wallpaper
-*** from Bing Photo of the Day
-#+BEGIN_SRC sh
-cetus -src=bpod -bpod-num 16 -wall=random # select from last 16 images
-
-cetus -src=bpod # This is same as above
-#+END_SRC
-*** from Unsplash Source
-#+BEGIN_SRC sh
-cetus -src=unsplash -wall=random -width 1920 -height 1080
-
-cetus -src=unsplash # This is same as above
-#+END_SRC
-*** from any service (choosen randomly)
-#+BEGIN_SRC sh
-cetus -src=random -wall=random
-
-cetus # This is same as above
-#+END_SRC
-* Defaults
-| flag | var  | default                                   |
-|------+------+-------------------------------------------|
-| wall | wall | random (daily when random is unavailable) |
-| src  | src  | random                                    |
-
-Currently only Unsplash Source random is supported for width, height
-| width  | width  | 1920 |
-| height | height | 1080 |
-** Astronomy Picture of the Day
-| flag         | var        | default                             |
-|--------------+------------+-------------------------------------|
-| apod-api     | apodAPI    | https://api.nasa.gov/planetary/apod |
-| apod-api-key | apodAPIKey | DEMO_KEY                            |
-| wall         | wall       | daily                               |
-** Bing Photo of the Day
-| flag     | var     | default                                  |
-|----------+---------+------------------------------------------|
-| bpod-api | bpodAPI | https://www.bing.com/HPImageArchive.aspx |
-| bpod-num | bpodNum | 7 (max 7)                                |
-** Unsplash Source
-| flag         | var         | default                     |
-|--------------+-------------+-----------------------------|
-| unsplash-api | unsplashAPI | https://source.unsplash.com |
diff --git a/main.go b/main.go
index c226610..731a4ae 100644
--- a/main.go
+++ b/main.go
@@ -15,10 +15,8 @@
 package main
 
 import (
-	"encoding/json"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"math/rand"
 	"net/http"
@@ -30,10 +28,6 @@ import (
 var (
 	timeout time.Duration
 
-	apodAPI     string
-	apodAPIKey  string
-	bpodAPI     string
-	bpodNum     int
 	unsplashAPI string
 
 	width  int
@@ -50,8 +44,6 @@ func main() {
 		wall    string
 		src     string
 		srcArr  []string = []string{
-			"apod",
-			"bpod",
 			"unsplash",
 		}
 	)
@@ -63,10 +55,6 @@ func main() {
 	flag.IntVar(&width, "width", 1920, "Width of the image")
 	flag.IntVar(&height, "height", 1080, "Height of the image")
 
-	flag.StringVar(&apodAPI, "apod-api", "https://api.nasa.gov/planetary/apod", "APOD API URL")
-	flag.StringVar(&apodAPIKey, "apod-api-key", "DEMO_KEY", "APOD API Key")
-	flag.StringVar(&bpodAPI, "bpod-api", "https://www.bing.com/HPImageArchive.aspx", "BPOD API URL")
-	flag.IntVar(&bpodNum, "bpod-num", 7, "BPOD Number of images to fetch (max 7)")
 	flag.StringVar(&unsplashAPI, "unsplash-api", "https://source.unsplash.com", "Unsplash Source API URL")
 	flag.DurationVar(&timeout, "timeout", 16, "Timeout for http client")
 	flag.Parse()
@@ -102,12 +90,6 @@ func parseSrcAndGetPath(src string, wall string) (string, error) {
 	var imgPath string
 
 	switch src {
-	case "apod":
-		fmt.Println("Astronomy Picture of the Day")
-		imgPath, err = getPathAPOD(wall)
-	case "bpod":
-		fmt.Println("Bing Photo of the Day")
-		imgPath, err = getPathBPOD(wall)
 	case "unsplash":
 		fmt.Println("Unsplash Source")
 		imgPath, err = getPathUnsplash(wall)
@@ -116,123 +98,6 @@ func parseSrcAndGetPath(src string, wall string) (string, error) {
 	return imgPath, err
 }
 
-func getPathAPOD(wall string) (string, error) {
-	var err error
-	var imgPath string
-
-	switch wall {
-	case "daily", "random":
-		break
-	default:
-		return "", fmt.Errorf("Error: Unknown wall")
-	}
-
-	type apodRes struct {
-		Copyright      string `json:"copyright"`
-		Date           string `json:"string"`
-		Explanation    string `json:"explanation"`
-		HDURL          string `json:"hdurl"`
-		MediaType      string `json:"media_type"`
-		ServiceVersion string `json:"service_version"`
-		Title          string `json:"title"`
-		URL            string `json:"url"`
-	}
-
-	apodNow := apodRes{}
-
-	req, err := http.NewRequest(http.MethodGet, apodAPI, nil)
-	if err != nil {
-		return "", err
-	}
-	q := req.URL.Query()
-	q.Add("api_key", apodAPIKey)
-	req.URL.RawQuery = q.Encode()
-
-	res, err := getRes(req)
-	if err != nil {
-		fmt.Printf("Error: GET %s\n", apodAPI)
-		return "", err
-	}
-	defer res.Body.Close()
-
-	apiBody, err := ioutil.ReadAll(res.Body)
-	if err != nil {
-		return "", err
-	}
-
-	err = json.Unmarshal([]byte(apiBody), &apodNow)
-	if err != nil {
-		return "", err
-	}
-
-	imgPath = apodNow.HDURL
-	return imgPath, err
-}
-
-func getPathBPOD(wall string) (string, error) {
-	var err error
-	var imgPath string
-
-	type Images struct {
-		StartDate     string `json:"startdate"`
-		FullStartDate string `json:"fullstartdate"`
-		EndDate       string `json:"enddate"`
-		URL           string `json:"url"`
-		URLBase       string `json:"urlbase"`
-		Copyright     string `json:"copyright"`
-		CopyrightLink string `json:"copyrightlink"`
-		Title         string `json:"title"`
-		Hsh           string `json:"hsh"`
-	}
-
-	type bpodRes struct {
-		Image []Images `json:"images"`
-	}
-
-	bpodNow := bpodRes{}
-
-	req, err := http.NewRequest(http.MethodGet, bpodAPI, nil)
-	if err != nil {
-		return "", err
-	}
-	q := req.URL.Query()
-	q.Add("format", "js")
-
-	switch wall {
-	case "daily":
-		q.Add("n", "1")
-	case "random":
-		// Fetches image (only info) & chooses a random image
-		q.Add("n", strconv.Itoa(bpodNum))
-	default:
-		return "", fmt.Errorf("Error: Unknown wall")
-	}
-
-	req.URL.RawQuery = q.Encode()
-
-	res, err := getRes(req)
-	if err != nil {
-		return "", err
-	}
-	defer res.Body.Close()
-
-	apiBody, err := ioutil.ReadAll(res.Body)
-	if err != nil {
-		return "", err
-	}
-
-	err = json.Unmarshal([]byte(apiBody), &bpodNow)
-	if err != nil {
-		return "", err
-	}
-
-	// Choose a random image
-	var i int = rand.Intn(len(bpodNow.Image))
-	imgPath = fmt.Sprintf("%s%s", "https://www.bing.com", bpodNow.Image[i].URL)
-
-	return imgPath, err
-}
-
 func getPathUnsplash(wall string) (string, error) {
 	var err error
 	var imgPath string