generated from rmcguire/go-server-with-otel
57 lines
2.2 KiB
Go
57 lines
2.2 KiB
Go
// Package config contains ServiceConfig, which is intended
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// to extend go-app/pkg/config.AppConfig. Add any custom fields
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// here, and it will automatically be handled by go-app, including
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// overrides by environment, and json schema generation
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package config
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import (
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"time"
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"github.com/caarlos0/env/v11"
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"gitea.libretechconsulting.com/rmcguire/go-app/pkg/config"
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)
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// DefaultUsageInterval is used when UsageInterval is unset. Rheem's
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// energy/water history only updates hourly, so polling faster is wasteful.
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const DefaultUsageInterval = 5 * time.Minute
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type ServiceConfig struct {
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// Rheem EcoNet cloud credentials. Prefer supplying the password via
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// the ECONET_PASSWORD environment variable rather than config.yaml.
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EconetEmail string `yaml:"econetEmail" json:"econetEmail,omitempty" env:"ECONET_EMAIL"`
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EconetPassword string `yaml:"econetPassword" json:"econetPassword,omitempty" env:"ECONET_PASSWORD"`
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// CostPerKWH is the electricity price in US dollars per kWh (e.g. 0.18
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// means 18 cents/kWh, NOT 18). It derives the econet_energy_cost_dollars
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// metric from kWh energy usage.
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CostPerKWH float64 `yaml:"costPerKWH" json:"costPerKWH,omitempty" env:"ECONET_COST_PER_KWH" default:"0.19"`
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// UsageInterval controls how often energy/water usage history is polled.
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UsageInterval time.Duration `yaml:"usageInterval" json:"usageInterval,omitempty" env:"ECONET_USAGE_INTERVAL"`
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// Embeds go-app config, used by go-app to
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// merge custom config into go-app config, and to produce
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// a complete configuration json schema
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*config.AppConfig
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}
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// LoadEnv applies environment-variable overrides to the custom ServiceConfig
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// fields. go-app's MustLoadConfigInto only handles env for the embedded
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// AppConfig, so the caller must apply env for custom fields. The embedded
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// AppConfig is skipped here to preserve go-app's own env/yaml precedence.
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func (c *ServiceConfig) LoadEnv() error {
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appConfig := c.AppConfig
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c.AppConfig = nil
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defer func() { c.AppConfig = appConfig }()
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return env.Parse(c)
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}
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// GetUsageInterval returns the configured usage poll interval or the default.
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func (c *ServiceConfig) GetUsageInterval() time.Duration {
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if c.UsageInterval <= 0 {
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return DefaultUsageInterval
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}
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return c.UsageInterval
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}
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