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path: root/internal/crons/main.go
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package crons

import (
	"apjournal/internal/database/repos"
	"context"
	"os"
	"strconv"
	"time"

	"log/slog"
)

var (
	log = slog.New(slog.NewJSONHandler(os.Stdout,
		&slog.HandlerOptions{Level: slog.LevelDebug}))
)

const (
	CheckBurnTimeKey = "check_burn_time_key"
)

type Cron struct {
	ctx  context.Context
	repo repos.FullRepo
}

func NewCron(
	ctx context.Context, repo repos.FullRepo,
) *Cron {
	return &Cron{
		ctx:  ctx,
		repo: repo,
	}
}

func (c *Cron) UpdateDefaultsFloat64(defaults map[string]float64) (map[string]float64, error) {
	dm, err := c.repo.DBGetDefaultsMap()
	if err != nil {
		return defaults, err
	}
	for k, _ := range defaults {
		sosValue, ok := dm[k]
		if ok {
			value, err := strconv.ParseFloat(sosValue, 64)
			if err != nil {
				// log err
				continue
			}
			defaults[k] = value
		}
	}
	return defaults, nil
}

func (c *Cron) StartCronJobs() {
	// check system_options for time
	defaults := map[string]float64{
		CheckBurnTimeKey: 5.0,
	}
	defaults, err := c.UpdateDefaultsFloat64(defaults)
	if err != nil {
		panic(err)
	}
	go c.BurnTicker(
		time.Minute * time.Duration(defaults[CheckBurnTimeKey]))
}

func (c *Cron) BurnTicker(interval time.Duration) {
	funcname := "BurnTicker"
	ticker := time.NewTicker(interval)
	for {
		select {
		case <-c.ctx.Done():
			log.Info("cron stopped by ctx.Done", "func", funcname)
			return
		case <-ticker.C:
			c.BurnTimeUpdate()
		}
	}
}

func (c *Cron) BurnTimeUpdate() {
	// funcname := "BurnTimeUpdate"
	// get all user scores
	// if burn time < now
	// halv the score
	// move the burn time to 24h from now (using same hours, minutes, seconds)
}