package config

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
)

// Config is the whole configuration for the forge platform deployment.
type Config struct {
	ProjectName string         `json:"project"`
	Docker      DockerConfig   `json:"docker"`
	Services    ServicesConfig `json:"services"`
}

// DockerConfig contains the configuration for docker specific components.
type DockerConfig struct {
	Network      DockerNetworkConfig      `json:"network"`
	SharedVolume DockerSharedVolumeConfig `json:"sharedVolume"`
}

// DockerNetworkConfig contains configuration for creating the docker network.
type DockerNetworkConfig struct {
	Name   string `json:"name"`
	Subnet string `json:"subnet"`
	Driver string `json:"driver"`
}

// DockerSharedVolumeConfig contains configuration for creating the shared volume.
type DockerSharedVolumeConfig struct {
	Name string `json:"name"`
}

// Services contains a list of services and their configuration.
type ServicesConfig struct {
	Traefik TraefikConfig `json:"traefik"`
	Gitea   GiteaConfig   `json:"gitea"`
}

// TraefikConfig contains configuration for the Traefik container.
type TraefikConfig struct {
	CheckNewVersion    bool   `json:"checkNewVersion"`
	ContainerIp        string `json:"containerIp"`
	Domain             string `json:"domain"`
	GroupId            int
	LogLevel           string `json:"logLevel"`
	SendAnonymousUsage bool   `json:"sendAnonymousUsage"`
	Version            string `json:"version"`
}

// GiteaConfig contains configuration for the Gitea container.
type GiteaConfig struct {
	AppName       string `json:"appName"`
	BaseUri       string `json:"baseUri"`
	ContainerIp   string `json:"containerIp"`
	DataDirectory string `json:"dataDirectory"`
	Domain        string `json:"domain"`
	GroupId       int
	HttpPort      int    `json:"httpPort"`
	InternalToken string `json:"internalToken"`
	LogLevel      string `json:"logLevel"`
	RootUrl       string `json:"rootUrl"`
	RunMode       string `json:"runMode"`
	SecretKey     string `json:"secretKey"`
	SshDomain     string `json:"sshDomain"`
	SshPort       int    `json:"sshPort"`
	UserId        int
	Version       string `json:"version"`
}

// NewConfig creates a new Config value from a given JSON file.
func NewConfig(file string) (Config, error) {
	var c Config
	var err error

	data, err := ioutil.ReadFile(file)
	if err != nil {
		return c, fmt.Errorf("unable to read data from %s...\n%v", file, err)
	}

	if err = json.Unmarshal(data, &c); err != nil {
		return c, fmt.Errorf("unable to decode the JSON configuration from %s...\n%v", file, err)
	}

	return c, nil
}