package main

import (
	"io/ioutil"

	"gopkg.in/yaml.v3"
)

// Config to receive settings from the configuration file
type Config struct {
	DatabaseFile   string              `yaml:"database-file"`
	MaxBlocks      int                 `yaml:"max-blocks"`
	MaxPayments    int                 `yaml:"max-payments"`
	Pools          []PoolConfig        `yaml:"pools"`
	Miners         []MinerConfig       `yaml:"miners"`
	TelegramConfig TelegramConfig      `yaml:"telegram"`
	Notifications  NotificationsConfig `yaml:"notifications"`
}

// PoolConfig to store Pool configuration
type PoolConfig struct {
	Coin           string  `yaml:"coin"`
	EnableBlocks   bool    `yaml:"enable-blocks"`
	MinBlockReward float64 `yaml:"min-block-reward"`
}

// MinerConfig to store Miner configuration
type MinerConfig struct {
	Address              string `yaml:"address"`
	Coin                 string `yaml:"coin"`
	EnableBalance        bool   `yaml:"enable-balance"`
	EnablePayments       bool   `yaml:"enable-payments"`
	EnableOfflineWorkers bool   `yaml:"enable-offline-workers"`
}

// TelegramConfig to store Telegram configuration
type TelegramConfig struct {
	Token       string `yaml:"token"`
	ChatID      int64  `yaml:"chat-id"`
	ChannelName string `yaml:"channel-name"`
}

// NotificationTemplatesConfig to store all notifications configurations
type NotificationsConfig struct {
	Balance       NotificationConfig `yaml:"balance"`
	Payment       NotificationConfig `yaml:"payment"`
	Block         NotificationConfig `yaml:"block"`
	OfflineWorker NotificationConfig `yaml:"offline-worker"`
}

// NotificationConfig to store a single notification configuration
type NotificationConfig struct {
	Template string `yaml:"template"`
	Test     bool   `yaml:"test"`
}

// NewConfig creates a Config with default values
func NewConfig() *Config {
	return &Config{
		DatabaseFile: AppName + ".db",
	}
}

// ReadFile reads and parses a YAML configuration file to override default values
func (c *Config) ReadFile(filename string) (err error) {
	yamlFile, err := ioutil.ReadFile(filename)
	if err != nil {
		return err
	}

	err = yaml.Unmarshal(yamlFile, &c)
	if err != nil {
		return err
	}

	return nil
}