package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "io"
    "io/ioutil"
    "log"
    "net/http"
    "os"

    "github.com/joho/godotenv"
)

func main() {
    err := godotenv.Load()
    if err != nil {
        log.Fatal("Error loading .env file")
    }
    ba, _ := fetchFieldsJson(os.Getenv("APP"), os.Getenv("SUB_DOMAIN"), os.Getenv("API_TOKEN"))
    var out bytes.Buffer
    if err := json.Indent(&out, ba, "", " "); err != nil {
        log.Fatal("Error json indent", err)
    }
    out.WriteTo(os.Stdout)
}


func fetchFieldsJson(appid string, subdomain string, apitoken string) ([]byte, error) {
    client := &http.Client{}
    type Body struct {
        App string `json:"app"`
    }
    data := Body{appid}
    body, err := json.Marshal(data)
    if err != nil {
        log.Fatal("Error JSON Encode")
    }
    req, err := http.NewRequest("GET", "https://"+subdomain+".cybozu.com/k/v1/app/form/fields.json", bytes.NewReader(body))
    if err != nil {
        log.Fatal("Error request")
    }
    req.Header.Add("X-Cybozu-API-Token", apitoken)
    req.Header.Add("Content-Type", "application/json")
    resp, err := client.Do(req)
    if err != nil {
        log.Fatal("Error client")
    }
    defer resp.Body.Close()
    fmt.Println(resp.Status)
    ba, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        log.Fatal("Error read")
    }
    return ba, err
}