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package main
import (
"fmt"
"io/ioutil"
"os"
"framagit.org/andinus/cetus/pkg/apod"
"framagit.org/andinus/cetus/pkg/background"
)
func execAPOD() {
// 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"] = string(*apodAPI)
reqInfo["apiKey"] = string(*apodKey)
reqInfo["date"] = string(*apodDate)
if *apodRand {
reqInfo["date"] = apod.RandDate()
}
cacheDir := fmt.Sprintf("%s/%s", getCacheDir(), "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
var body string
file := fmt.Sprintf("%s/%s", cacheDir, reqInfo["date"])
if _, err := os.Stat(file); err == nil {
data, err := ioutil.ReadFile(file)
chkErr(err)
body = string(data)
} else if os.IsNotExist(err) {
body, err = apod.GetJson(reqInfo)
chkErr(err)
// Write body to the cache so that it can be read
// later
err = ioutil.WriteFile(file, []byte(body), 0644)
chkErr(err)
} else {
chkErr(err)
}
if *apodDump {
fmt.Printf(body)
os.Exit(0)
}
res := apod.Res{}
err := apod.UnmarshalJson(&res, body)
chkErr(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)
}
// If path-only is passed then it will only print the path,
// even if quiet is passed. If the user wants the program to
// be quiet then path-only shouldn't be passed. If path-only
// is not passed & quiet is also not passed then print the
// response.
//
// Path is only printed when the media type is an image
// because res.HDURL is empty on non image media type.
if *apodPathOnly {
fmt.Println(res.HDURL)
} else if !*apodQuiet {
apod.Print(res)
}
// 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)
}
imgCacheDir := fmt.Sprintf("%s/%s", cacheDir, "background")
os.MkdirAll(imgCacheDir, os.ModePerm)
imgFile := fmt.Sprintf("%s/%s", imgCacheDir, reqInfo["date"])
// 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)
chkErr(err)
} else {
chkErr(err)
}
err = background.Set(imgFile)
chkErr(err)
}
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