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package main
import (
"encoding/json"
"flag"
"fmt"
"log"
"time"
"framagit.org/andinus/cetus/pkg/background"
"framagit.org/andinus/cetus/pkg/cetus"
"framagit.org/andinus/cetus/pkg/nasa"
)
type apod struct {
copyright string `json:"copyright"`
date string `json:"date"`
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"`
code int `json:"code"`
msg string `json:"msg"`
}
var (
t time.Duration
api string
date string
dump bool
quiet bool
random bool
apiKey string
version bool
fetchOnly bool
pathOnly bool
)
func main() {
parseFlags()
if version {
cetus.Version()
return
}
// Convert timeout to seconds
t = t * time.Second
if random {
date = nasa.RandDate()
}
body, err := apodBody()
if dump {
fmt.Println(body)
return
}
apod := apod{}
err = json.Unmarshal([]byte(body), &apod)
cetus.ErrChk("body unmarshal failed", err)
if len(apod.msg) != 0 {
log.Println("Message: ", apod.msg)
}
printDetails(apod)
// if fetchOnly is true then don't set background
if fetchOnly {
return
}
// if media type is an image then set background
if apod.mediaType == "image" {
err = background.Set(apod.hdURL)
cetus.ErrChk("setting background failed", err)
}
}
func parseFlags() {
flag.BoolVar(&quiet, "quiet", false, "No output")
flag.BoolVar(&version, "version", false, "Cetus version")
flag.BoolVar(&fetchOnly, "fetch-only", false, "Don't set background, only fetch info")
flag.BoolVar(&dump, "dump", false, "Only dump received response")
dateHelp := fmt.Sprintf("Choose a random date between 1995-06-16 & %s",
time.Now().UTC().Format("2006-01-02"))
flag.BoolVar(&random, "random", false, dateHelp)
flag.BoolVar(&pathOnly, "path-only", false, "Print only path of the image")
flag.StringVar(&api, "api", "https://api.nasa.gov/planetary/apod", "APOD API URL")
flag.StringVar(&apiKey, "api-key", "DEMO_KEY", "api.nasa.gov key for expanded usage")
dateDefault := time.Now().UTC().Format("2006-01-02")
flag.StringVar(&date, "date", dateDefault, "Date of the APOD image to retrieve")
flag.DurationVar(&t, "timeout", 32*time.Second, "Timeout for http client in seconds")
flag.Parse()
}
func printDetails(apod apod) {
if quiet {
return
}
if pathOnly {
cetus.PrintPath(apod.hdURL)
return
}
fmt.Printf("Title: %s\n\n", apod.title)
fmt.Printf("Copyright: %s\n", apod.copyright)
fmt.Printf("Date: %s\n\n", apod.date)
fmt.Printf("Media Type: %s\n", apod.mediaType)
if apod.mediaType == "image" {
fmt.Printf("URL: %s\n\n", apod.hdURL)
} else {
fmt.Printf("URL: %s\n\n", apod.url)
}
fmt.Printf("Explanation: %s\n", apod.explanation)
}
func apodBody() (string, error) {
reqInfo := make(map[string]string)
reqInfo["api"] = api
reqInfo["apiKey"] = apiKey
reqInfo["date"] = date
body, err := nasa.GetApodJson(reqInfo, t)
return body, err
}