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package apod
import (
"encoding/json"
"fmt"
"regexp"
"tildegit.org/andinus/cetus/request"
)
// APOD holds the response from the api. Not every field is returned
// in every request. Code & Msg should be filled only if the api
// returns an error, this behaviour was observed and shouldn't be
// trusted.
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"`
}
// UnmarshalJson will take body as input & unmarshal it to res.
func UnmarshalJson(res *APOD, body string) error {
err := json.Unmarshal([]byte(body), res)
if err != nil {
err = fmt.Errorf("json.go: unmarshalling json failed\n%s",
err.Error())
}
return err
}
// GetJson takes reqInfo as input and returns the body and an error.
func GetJson(reqInfo map[string]string) (string, error) {
var body string
var err error
// This regexp is not perfect and does not guarantee that the
// request will not fail because of wrong date, this will
// eliminate many wrong dates though.
re := regexp.MustCompile("((19|20)\\d\\d)-(0?[1-9]|1[012])-(0?[1-9]|[12][0-9]|3[01])")
if !re.MatchString(reqInfo["date"]) {
err = fmt.Errorf("json.go: %s does not match format 'YYYY-MM-DD'",
reqInfo["date"])
return body, err
}
// reqInfo is map[string]string and params is built from it,
// currently it takes apiKey and the date from reqInfo to
// build param. If any new key/value is added to reqInfo then
// it must be addded here too, it won't be sent as param
// directly.
params := make(map[string]string)
params["api_key"] = reqInfo["apiKey"]
params["date"] = reqInfo["date"]
body, err = request.GetRes(reqInfo["api"], params)
return body, err
}
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