91 lines
1.9 KiB
Go
91 lines
1.9 KiB
Go
package logs
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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stypes "git.cryptic.systems/fh-trier/go-flucky-server/pkg/types"
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"git.cryptic.systems/fh-trier/go-flucky/pkg/types"
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)
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// AppendTemperature write a given array of temperatures to a logfile
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func AppendTemperature(temperatures []*stypes.Temperature, cnf *types.Config) error {
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tLog, err := ReadTemperatures(cnf.TemperatureLogfile)
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if err != nil {
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return err
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}
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tLog = append(tLog, temperatures...)
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err = WriteTemperatures(tLog, cnf.TemperatureLogfile)
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if err != nil {
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return err
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}
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return nil
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}
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// FlushTemperatures ...
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func FlushTemperatures(logFile string) error {
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if err := ioutil.WriteFile(logFile, []byte(""), 0644); err != nil {
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return err
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}
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return nil
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}
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// ReadTemperatures ...
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func ReadTemperatures(logFile string) ([]*stypes.Temperature, error) {
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logPath := filepath.Dir(logFile)
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// create log dir if not exist
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if _, err := os.Stat(logFile); os.IsNotExist(err) {
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if _, err := os.Stat(logPath); os.IsNotExist(err) {
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err := os.MkdirAll(logPath, os.ModePerm)
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if err != nil {
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return nil, fmt.Errorf("Can not create directory: %v", err)
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}
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}
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if err := FlushTemperatures(logFile); err != nil {
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return nil, err
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}
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}
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// open config file
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jsonFile, err := os.Open(logFile)
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if err != nil {
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return nil, fmt.Errorf("Can not open file %v: %v", logFile, err)
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}
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defer jsonFile.Close()
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bytes, err := ioutil.ReadAll(jsonFile)
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if err != nil {
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return nil, fmt.Errorf("Can not read jsonfile %v: %v", logFile, err)
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}
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temperatures := []*stypes.Temperature{}
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json.Unmarshal(bytes, &temperatures)
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return temperatures, nil
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}
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// WriteTemperatures ...
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func WriteTemperatures(temperatures []*stypes.Temperature, logFile string) error {
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bytes, err := json.Marshal(temperatures)
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if err != nil {
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return err
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}
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if err := ioutil.WriteFile(logFile, bytes, 0644); err != nil {
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return err
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}
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return nil
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}
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