Move app func to main

6 files changed, 0 insertions, 488 deletions

diff --git a/cmd/cetus/apod.go b/cmd/cetus/apod.go
deleted file mode 100644
index 2c0f2a0..0000000
--- a/cmd/cetus/apod.go
+++ /dev/null
@@ -1,169 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-
-	"tildegit.org/andinus/cetus/apod"
-	"tildegit.org/andinus/cetus/background"
-	"tildegit.org/andinus/cetus/cache"
-	"tildegit.org/andinus/cetus/notification"
-)
-
-func execAPOD() {
-	apodApi := getEnv("APOD_API", "https://api.nasa.gov/planetary/apod")
-	apodKey := getEnv("APOD_KEY", "DEMO_KEY")
-
-	// reqInfo holds all the parameters that needs to be sent with
-	// the request. GetJson() will pack apiKey & date in params
-	// map before sending it to another function. Adding params
-	// here will not change the behaviour of the function, changes
-	// have to be made in GetJson() too.
-	reqInfo = make(map[string]string)
-	reqInfo["api"] = apodApi
-	reqInfo["apiKey"] = apodKey
-	reqInfo["date"] = apodDate
-
-	if random {
-		reqInfo["date"] = apod.RandDate()
-	}
-
-	cacheDir := fmt.Sprintf("%s/%s", cache.GetDir(), "apod")
-	os.MkdirAll(cacheDir, os.ModePerm)
-
-	// Check if the file is available locally, if it is then don't
-	// download it again and get it from disk
-	file = fmt.Sprintf("%s/%s.json", cacheDir, reqInfo["date"])
-
-	if _, err := os.Stat(file); err == nil {
-		data, err := ioutil.ReadFile(file)
-
-		// Not being able to read from the cache file is a
-		// small error and the program shouldn't exit but
-		// should continue after printing the log so that the
-		// user can investigate it later.
-		if err != nil {
-			err = fmt.Errorf("%s%s\n%s",
-				"apod.go: failed to read file to data: ", file,
-				err.Error())
-			log.Println(err)
-			dlAndCacheAPODBody()
-		}
-		body = string(data)
-
-	} else if os.IsNotExist(err) {
-		dlAndCacheAPODBody()
-
-	} else {
-		// If file existed then that is handled by the if
-		// block, if it didn't exist then that is handled by
-		// the else if block. If we reach here then that means
-		// it's Schrödinger's file & something else went
-		// wrong.
-		log.Fatal(err)
-	}
-
-	if dump {
-		fmt.Println(body)
-	}
-
-	res := apod.APOD{}
-	err = apod.UnmarshalJson(&res, body)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// res.Msg will be returned when there is error on user input
-	// or the api server.
-	if len(res.Msg) != 0 {
-		fmt.Printf("Message: %s", res.Msg)
-		os.Exit(1)
-	}
-
-	// Send a desktop notification if notify flag was passed.
-	if notify {
-		n := notification.Notif{}
-		n.Title = res.Title
-		n.Message = fmt.Sprintf("%s\n\n%s",
-			res.Date,
-			res.Explanation)
-
-		err = n.Notify()
-		if err != nil {
-			log.Println(err)
-		}
-	}
-
-	if print {
-		fmt.Printf("Title: %s\n\n", res.Title)
-		if len(res.Copyright) != 0 {
-			fmt.Printf("Copyright: %s\n", res.Copyright)
-		}
-		fmt.Printf("Date: %s\n\n", res.Date)
-		fmt.Printf("Media Type: %s\n", res.MediaType)
-		if res.MediaType == "image" {
-			fmt.Printf("URL: %s\n\n", res.HDURL)
-		} else {
-			fmt.Printf("URL: %s\n\n", res.URL)
-		}
-		fmt.Printf("Explanation: %s\n", res.Explanation)
-	}
-
-	// Proceed only if the command was set because if it was fetch
-	// then it's already finished & should exit now.
-	if os.Args[1] == "fetch" {
-		os.Exit(0)
-	}
-
-	// Try to set background only if the media type is an image.
-	// First it downloads the image to the cache directory and
-	// then tries to set it with feh. If the download fails then
-	// it exits with a non-zero exit code.
-	if res.MediaType != "image" {
-		os.Exit(0)
-	}
-	imgFile := fmt.Sprintf("%s/%s", cacheDir, res.Title)
-
-	// Check if the file is available locally, if it is then don't
-	// download it again and set it from disk.
-	if _, err := os.Stat(imgFile); os.IsNotExist(err) {
-		err = background.Download(imgFile, res.HDURL)
-		if err != nil {
-			log.Fatal(err)
-		}
-	} else {
-		if err != nil {
-			log.Fatal(err)
-		}
-	}
-
-	err = background.SetFromFile(imgFile)
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-
-func dlAndCacheAPODBody() {
-	body, err = apod.GetJson(reqInfo)
-	if err != nil {
-		err = fmt.Errorf("%s\n%s",
-			"apod.go: failed to get json response from api",
-			err.Error())
-		log.Fatal(err)
-	}
-
-	// Write body to the cache so that it can be read later.
-	err = ioutil.WriteFile(file, []byte(body), 0644)
-
-	// Not being able to write to the cache file is a small error
-	// and the program shouldn't exit but should continue after
-	// printing the log so that the user can investigate it later.
-	if err != nil {
-		err = fmt.Errorf("%s%s\n%s",
-			"apod.go: failed to write body to file: ", file,
-			err.Error())
-		log.Println(err)
-	}
-}
diff --git a/cmd/cetus/app.go b/cmd/cetus/app.go
deleted file mode 100644
index 32225d7..0000000
--- a/cmd/cetus/app.go
+++ /dev/null
@@ -1,99 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"math/rand"
-	"os"
-	"time"
-)
-
-var (
-	version string = "v0.6.7"
-	dump    bool
-	random  bool
-	notify  bool
-	print   bool
-
-	err     error
-	body    string
-	file    string
-	reqInfo map[string]string
-
-	apodDate string
-)
-
-func app() {
-	// Early Check: If command was not passed then print usage and
-	// exit. Later command & service both are checked, this check
-	// is for version command. If not checked then running cetus
-	// without any args will fail because os.Args[1] will panic
-	// the program & produce runtime error.
-	if len(os.Args) == 1 {
-		printUsage()
-		os.Exit(0)
-	}
-
-	parseArgs()
-}
-
-// parseArgs will be parsing the arguments, it will verify if they are
-// correct. Flag values are also set by parseArgs.
-func parseArgs() {
-	// Running just `cetus` would've paniced the program if length
-	// of os.Args was not checked beforehand because there would
-	// be no os.Args[1].
-	switch os.Args[1] {
-	case "version", "-version", "--version", "-v":
-		fmt.Printf("Cetus %s\n", version)
-		os.Exit(0)
-
-	case "help", "-help", "--help", "-h":
-		// If help was passed then the program shouldn't exit
-		// with non-zero error code.
-		printUsage()
-		os.Exit(0)
-
-	case "set", "fetch":
-		// If command & service was not passed then print
-		// usage and exit.
-		if len(os.Args) < 3 {
-			printUsage()
-			os.Exit(1)
-		}
-
-	default:
-		fmt.Printf("Invalid command: %q\n", os.Args[1])
-		printUsage()
-		os.Exit(1)
-	}
-
-	rand.Seed(time.Now().Unix())
-
-	// If the program has reached this far then that means a valid
-	// command was passed & now we should check if a valid service
-	// was passed and parse the flags.
-	cetus := flag.NewFlagSet("cetus", flag.ExitOnError)
-
-	// We first declare common flags then service specific flags.
-	cetus.BoolVar(&dump, "dump", false, "Dump the response")
-	cetus.BoolVar(&notify, "notify", false, "Send a desktop notification with info")
-	cetus.BoolVar(&print, "print", false, "Print information")
-	cetus.BoolVar(&random, "random", false, "Choose a random image")
-
-	switch os.Args[2] {
-	case "apod", "nasa":
-		defDate := time.Now().UTC().Format("2006-01-02")
-		cetus.StringVar(&apodDate, "date", defDate, "Date of NASA APOD to retrieve")
-		cetus.Parse(os.Args[3:])
-
-		execAPOD()
-	case "bpod", "bing":
-		cetus.Parse(os.Args[3:])
-		execBPOD()
-	default:
-		fmt.Printf("Invalid service: %q\n", os.Args[2])
-		printUsage()
-		os.Exit(1)
-	}
-}
diff --git a/cmd/cetus/bpod.go b/cmd/cetus/bpod.go
deleted file mode 100644
index 7aa0a1b..0000000
--- a/cmd/cetus/bpod.go
+++ /dev/null
@@ -1,140 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-	"time"
-
-	"tildegit.org/andinus/cetus/background"
-	"tildegit.org/andinus/cetus/bpod"
-	"tildegit.org/andinus/cetus/cache"
-	"tildegit.org/andinus/cetus/notification"
-)
-
-func execBPOD() {
-	bpodApi := getEnv("BPOD_API", "https://www.bing.com/HPImageArchive.aspx")
-
-	// reqInfo holds all the parameters that needs to be sent with
-	// the request. GetJson() will pack apiKey & date in params
-	// map before sending it to another function. Adding params
-	// here will not change the behaviour of the function, changes
-	// have to be made in GetJson() too.
-	reqInfo = make(map[string]string)
-	reqInfo["api"] = bpodApi
-
-	if random {
-		reqInfo["random"] = "true"
-	}
-
-	cacheDir := fmt.Sprintf("%s/%s", cache.GetDir(), "bpod")
-	os.MkdirAll(cacheDir, os.ModePerm)
-
-	body, err = bpod.GetJson(reqInfo)
-	if err != nil {
-		err = fmt.Errorf("%s\n%s",
-			"bpod.go: failed to get json response from api",
-			err.Error())
-		log.Fatal(err)
-	}
-
-	if dump {
-		fmt.Println(body)
-	}
-
-	res, err := bpod.UnmarshalJson(body)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Correct format
-	res.URL = fmt.Sprintf("%s%s", "https://www.bing.com", res.URL)
-	dt, err := time.Parse("20060102", res.StartDate)
-	if err != nil {
-		log.Fatal(err)
-	}
-	res.StartDate = dt.Format("2006-01-02")
-
-	// Save response in cache after marshalling it again, we do
-	// this instead of saving the response so as to not break the
-	// format in which cache is saved. If random flag was passed
-	// then the response will contain all 7 values so we have to
-	// marshal it but why not save non-random directly? Because
-	// that means the format in which both are saved will be
-	// different. One will be the raw response whereas other will
-	// be marshalled response. We're currently not using this body
-	// cache but this is just to save information.
-	file := fmt.Sprintf("%s/%s.json", cacheDir, res.StartDate)
-	body, err = bpod.MarshalJson(res)
-	if err != nil {
-		// We should warn the user if this returns an error
-		// but the program shouldn't exit.
-		log.Println("bpod.go: failed to marshal res to body, not saving cache")
-	} else {
-		err = ioutil.WriteFile(file, []byte(body), 0644)
-		// Not being able to write to the cache file is a
-		// small error and the program shouldn't exit but
-		// should continue after printing the log so that the
-		// user can investigate it later.
-		if err != nil {
-			err = fmt.Errorf("%s%s\n%s",
-				"bpod.go: failed to write body to file: ", file,
-				err.Error())
-			log.Println(err)
-		}
-	}
-
-	// Send a desktop notification if notify flag was passed.
-	if notify {
-		n := notification.Notif{}
-		n.Title = res.Title
-		n.Message = fmt.Sprintf("%s\n\n%s",
-			res.StartDate,
-			res.Copyright)
-
-		err = n.Notify()
-		if err != nil {
-			log.Println(err)
-		}
-	}
-
-	if print {
-		fmt.Printf("Title: %s\n\n", res.Title)
-		fmt.Printf("Copyright: %s\n", res.Copyright)
-		fmt.Printf("Copyright Link: %s\n", res.CopyrightLink)
-		fmt.Printf("Date: %s\n\n", res.StartDate)
-		fmt.Printf("URL: %s\n", res.URL)
-	}
-
-	// Proceed only if the command was set because if it was fetch
-	// then it's already finished & should exit now.
-	if os.Args[1] == "fetch" {
-		os.Exit(0)
-	}
-
-	// Try to set background only if the media type is an image.
-	// First it downloads the image to the cache directory and
-	// then tries to set it with feh. If the download fails then
-	// it exits with a non-zero exit code.
-	imgFile := fmt.Sprintf("%s/%s", cacheDir, res.Title)
-
-	// Check if the file is available locally, if it is then don't
-	// download it again and set it from disk
-	if _, err := os.Stat(imgFile); os.IsNotExist(err) {
-		err = background.Download(imgFile, res.URL)
-		if err != nil {
-			log.Fatal(err)
-		}
-
-	} else {
-		if err != nil {
-			log.Fatal(err)
-		}
-	}
-
-	err = background.SetFromFile(imgFile)
-	if err != nil {
-		log.Fatal(err)
-	}
-}
diff --git a/cmd/cetus/env.go b/cmd/cetus/env.go
deleted file mode 100644
index 9288c35..0000000
--- a/cmd/cetus/env.go
+++ /dev/null
@@ -1,18 +0,0 @@
-package main
-
-import "os"
-
-// getEnv will check if the the key exists, if it does then it'll
-// return the value otherwise it will return fallback string.
-func getEnv(key, fallback string) string {
-	// We use os.LookupEnv instead of using os.GetEnv and checking
-	// if the length equals 0 because environment variable can be
-	// set and be of length 0. User could've set key="" which
-	// means the variable was set but the length is 0. There is no
-	// reason why user would want to do this over here though.
-	value, exists := os.LookupEnv(key)
-	if !exists {
-		value = fallback
-	}
-	return value
-}
diff --git a/cmd/cetus/main.go b/cmd/cetus/main.go
deleted file mode 100644
index b8098be..0000000
--- a/cmd/cetus/main.go
+++ /dev/null
@@ -1,47 +0,0 @@
-package main
-
-import (
-	"log"
-
-	"tildegit.org/andinus/cetus/cache"
-	"tildegit.org/andinus/lynx"
-)
-
-func main() {
-	unveil()
-	app()
-}
-
-func unveil() {
-	paths := make(map[string]string)
-
-	paths[cache.Dir()] = "rwc"
-	paths["/dev/null"] = "rw" // required by feh
-	paths["/etc/resolv.conf"] = "r"
-
-	// ktrace output
-	paths["/usr/libexec/ld.so"] = "r"
-	paths["/var/run/ld.so.hints"] = "r"
-	paths["/usr/lib"] = "r"
-	paths["/dev/urandom"] = "r"
-	paths["/etc/hosts"] = "r"
-	paths["/etc/ssl"] = "r"
-
-	err := lynx.UnveilPaths(paths)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	commands := []string{"feh", "gsettings", "pcmanfm", "notify-send"}
-
-	err = lynx.UnveilCommands(commands)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Block further unveil calls
-	err = lynx.UnveilBlock()
-	if err != nil {
-		log.Fatal(err)
-	}
-}
diff --git a/cmd/cetus/usage.go b/cmd/cetus/usage.go
deleted file mode 100644
index e9e2f71..0000000
--- a/cmd/cetus/usage.go
+++ /dev/null
@@ -1,15 +0,0 @@
-package main
-
-import "fmt"
-
-func printUsage() {
-	fmt.Println("Usage: cetus <command> <service> [<flags>]")
-	fmt.Println("\nCommands: ")
-	fmt.Println(" set     Set the background")
-	fmt.Println(" fetch   Fetch the response only")
-	fmt.Println(" help    Print help")
-	fmt.Println(" version Print Cetus version")
-	fmt.Println("\nServices: ")
-	fmt.Println(" apod   NASA Astronomy Picture of the Day")
-	fmt.Println(" bpod   Bing Photo of the Day")
-}