evalphobia/bobo-experiment

package aws

import (
    "os"

    "github.com/evalphobia/httpwrapper/request"
)

var defaultChartURL = os.Getenv("CHART_ANGEL_ENDPOINT")

func canCreateChart(url string) bool {
    switch {
    case url != "",
        defaultChartURL != "":
        return true
    }
    return false
}

func getChartURL(url string) string {
    if url != "" {
        return url
    }
    return defaultChartURL
}

func createChartURL(endpoint, title string, list Datapoints) (string, error) {
    params := make(map[string]interface{})
    params["title"] = title
    params["label_x"] = "time"
    params["label_y"] = "value"
    params["type"] = "line"

    data := make(map[string]map[string]interface{})
    for _, dp := range list {
        category := dp.MetricName
        catData, ok := data[category]
        if !ok {
            catData = make(map[string]interface{})
            data[category] = catData
        }
        catData[dp.Time.Format("2006-01-02 15:04:05")] = dp.Value
        data[category] = catData
    }
    params["data"] = data

    chartResp, err := request.POST(getChartURL(endpoint), request.Option{
        Payload:     params,
        PayloadType: request.PayloadTypeJSON,
    })
    if err != nil {
        return "", err
    }
    err = chartResp.HasStatusCodeError()
    if err != nil {
        return "", err
    }

    var respMap map[string]interface{}
    err = chartResp.Response.JSON(&respMap)
    if err != nil {
        return "", err
    }

    return respMap["html_url"].(string), nil
}