Refactor

database.go

@@ -1,110 +0,0 @@
-package main
-
-import (
-	"errors"
-	"fmt"
-	"time"
-)
-
-type HistoryEntry struct {
-	Date                       int64
-	GreenEnergyPercentage      float32
-	PolledSmartEnergySummation float32
-}
-type History []HistoryEntry
-
-func (config Config) updateHistory() {
-
-	greenEnergyPercentage, err := config.historyAverageAndConvertToGreen(config.Sensors.FossilPercentage, time.Now())
-	if err != nil {
-		return
-	}
-	historyPolledSmartEnergySummation, err := config.historyDelta(config.Sensors.PolledSmartEnergySummation, time.Now())
-	if err != nil {
-		return
-	}
-
-	config.db.Exec("INSERT OR REPLACE INTO cache(time,green_energy_percentage,energy_consumption) VALUES (?,?,?);", dayStart(time.Now()).Unix(), greenEnergyPercentage.Value, historyPolledSmartEnergySummation.Value)
-
-	cached, err := config.readHistory()
-	if err != nil {
-		return
-	}
-	if len(cached) != 8 && time.Now().Sub(config.HomeAssistant.InstallationDate) > 8*time.Hour*24 {
-		err := config.refreshCacheFromPast(time.Now().Add(-8 * time.Hour * 24))
-		if err != nil {
-			fmt.Println("Error refreshing cache", err.Error())
-			return
-		}
-	}
-
-}
-
-func (config Config) refreshCacheFromInstall() error {
-	return config.refreshCacheFromPast(config.HomeAssistant.InstallationDate)
-}
-
-func (config Config) refreshCacheFromPast(pastTime time.Time) error {
-
-	// in order to avoid querying and storing each day's data from 0001-01-01 in future versions
-	if config.HomeAssistant.InstallationDate.IsZero() {
-		return errors.New("installation date not set")
-	}
-
-	greenEnergyPercentage, err := config.historyBulkAverageAndConvertToGreen(config.Sensors.FossilPercentage, pastTime, time.Now())
-	if err != nil {
-		return err
-	}
-	historyPolledSmartEnergySummation, err := config.historyBulkDelta(config.Sensors.PolledSmartEnergySummation, pastTime, time.Now())
-	if err != nil {
-		return err
-	}
-
-	for key, day := range greenEnergyPercentage {
-
-		var action2 string
-		if greenEnergyPercentage[key].Value != 0 && historyPolledSmartEnergySummation[key].Value != 0 {
-			action2 = "REPLACE"
-		} else {
-			action2 = "IGNORE"
-		}
-
-		stmt, err := config.db.Prepare("INSERT OR " + action2 + " INTO cache(time, green_energy_percentage, energy_consumption) values(?,?,?)")
-		if err != nil {
-			return err
-		}
-		_, err = stmt.Exec(day.DayTime.Unix(), greenEnergyPercentage[key].Value, historyPolledSmartEnergySummation[key].Value)
-		if err != nil {
-			return err
-		}
-
-	}
-
-	return nil
-
-}
-
-func (config Config) readHistory() (History, error) {
-
-	start := dayStart(time.Now()).AddDate(0, 0, -8)
-
-	rows, err := config.db.Query("SELECT time, green_energy_percentage, energy_consumption FROM cache WHERE time > ?", start.Unix())
-	if err != nil {
-		return History{}, err
-	}
-	defer rows.Close()
-	var ret History
-
-	for rows.Next() {
-		var (
-			date                         int64
-			greenEnergyPercentage        float32
-			polledSmartEnergyConsumption float32
-		)
-		err = rows.Scan(&date, &greenEnergyPercentage, &polledSmartEnergyConsumption)
-		ret = append(ret, HistoryEntry{date, greenEnergyPercentage, polledSmartEnergyConsumption})
-	}
-
-	return ret, nil
-
-}