feat: allow specifying timezone (#41)

config.example.toml

@@ -1,3 +1,8 @@
+# Path to where aliases in .toml will be stored. If omitted, no aliases setting/displaying would work.
+aliases = "/home/monitoring/config/cosmos-transactions-bot-aliases.toml"
+# Timezone in which time (like undelegation finish time) will be displayed. Defaults to "Etc/GMT", so UTC+0
+timezone = "Europe/Moscow"
+
 # Logging configuration
 [log]
 # Log level. Set to "debug" or "trace" to make it more verbose, or to "warn"/"error" to make it less verbose.

pkg/config/config.go

@@ -3,6 +3,7 @@ package config
 import (
 	"bytes"
 	"os"
+	"time"
 
 	"gopkg.in/guregu/null.v4"
 
@@ -34,6 +35,7 @@ type AppConfig struct {
 	LogConfig      LogConfig
 	Chains         Chains
 	Metrics        MetricsConfig
+	Timezone       *time.Location
 }
 
 type TelegramConfig struct {
@@ -77,6 +79,8 @@ func GetConfig(path string) (*AppConfig, error) {
 }
 
 func FromTomlConfig(c *tomlConfig.TomlConfig, path string) *AppConfig {
+	timezone, _ := time.LoadLocation(c.Timezone)
+
 	return &AppConfig{
 		Path:        path,
 		AliasesPath: c.AliasesPath,
@@ -96,6 +100,7 @@ func FromTomlConfig(c *tomlConfig.TomlConfig, path string) *AppConfig {
 		Chains: utils.Map(c.Chains, func(c *tomlConfig.Chain) *types.Chain {
 			return c.ToAppConfigChain()
 		}),
+		Timezone: timezone,
 	}
 }
 
@@ -115,7 +120,8 @@ func (c *AppConfig) ToTomlConfig() *tomlConfig.TomlConfig {
 			ListenAddr: c.Metrics.ListenAddr,
 			Enabled:    null.BoolFrom(c.Metrics.Enabled),
 		},
-		Chains: utils.Map(c.Chains, tomlConfig.FromAppConfigChain),
+		Chains:   utils.Map(c.Chains, tomlConfig.FromAppConfigChain),
+		Timezone: c.Timezone.String(),
 	}
 }
 

pkg/config/toml_config/toml_config.go

@@ -2,6 +2,7 @@ package toml_config
 
 import (
 	"fmt"
+	"time"
 
 	"gopkg.in/guregu/null.v4"
 )
@@ -12,6 +13,7 @@ type TomlConfig struct {
 	LogConfig      LogConfig      `toml:"log"`
 	MetricsConfig  MetricsConfig  `toml:"metrics"`
 	Chains         Chains         `toml:"chains"`
+	Timezone       string         `default:"Etc/GMT" toml:"timezone"`
 }
 
 type TelegramConfig struct {
@@ -30,6 +32,10 @@ func (c *TomlConfig) Validate() error {
 		return fmt.Errorf("no chains provided")
 	}
 
+	if _, err := time.LoadLocation(c.Timezone); err != nil {
+		return fmt.Errorf("error parsing timezone: %s", err)
+	}
+
 	for index, chain := range c.Chains {
 		if err := chain.Validate(); err != nil {
 			return fmt.Errorf("error in chain %d: %s", index, err)

pkg/reporters/telegram/telegram.go

@@ -252,5 +252,5 @@ func (reporter *TelegramReporter) SerializeAmount(amount amount.Amount) template
 }
 
 func (reporter *TelegramReporter) SerializeDate(date time.Time) template.HTML {
-	return template.HTML(date.Format(time.RFC822))
+	return template.HTML(date.In(reporter.Config.Timezone).Format(time.RFC822))
 }