package config

import (
	"encoding/json"
	"fmt"
	"os"
	"path/filepath"
)

const (
	configDir      string = "./config/"
	configFileName string = "services.json"
)

type Config struct {
	RootDomain string      `json:"rootDomain"`
	FlowGID    int32       `json:"flowGID"`
	Docker     Docker      `json:"docker"`
	Traefik    Traefik     `json:"traefik"`
	Forgejo    Forgejo     `json:"forgejo"`
	GoToSocial Gotosocial  `json:"gotosocial"`
	Woodpecker Woodpecker  `json:"woodpecker"`
	Landing    LandingPage `json:"landing"`
}

type Docker struct {
	Host    string        `json:"host"`
	Network DockerNetwork `json:"network"`
}

type DockerNetwork struct {
	Name   string `json:"name"`
	Subnet string `json:"subnet"`
}

type Traefik struct {
	Version                  string `json:"version"`
	CheckNewVersion          bool   `json:"checkNewVersion"`
	ExternalSSHPort          int32  `json:"externalSSHPort"`
	LogLevel                 string `json:"logLevel"`
	SendAnonymousUsage       bool   `json:"sendAnonymousUsage"`
	ContainerName            string `json:"containerName"`
	ContainerIpv4Address     string `json:"containerIpv4Address"`
	GenerateAcmeCertificates bool   `json:"generateAcmeCertificates"`
	AcmeEmail                string `json:"acmeEmail"`
	SharedMountPoint         string `json:"sharedMountPoint"`
	TlsHostDirectory         string `json:"tlsHostDirectory"`
	TlsContainerDirectory    string `json:"tlsContainerDirectory"`
	StaticConfigDirectory    string `json:"staticConfigDirectory"`
	DynamicConfigDirectory   string `json:"dynamicConfigDirectory"`
}

type Forgejo struct {
	Version                  string         `json:"version"`
	Name                     string         `json:"name"`
	Subdomain                string         `json:"subdomain"`
	ContainerName            string         `json:"containerName"`
	ContainerIpv4Address     string         `json:"containerIpv4Address"`
	SshPort                  int32          `json:"sshPort"`
	HttpPort                 int32          `json:"httpPort"`
	RunMode                  string         `json:"runMode"`
	LogLevel                 string         `json:"logLevel"`
	LinuxUID                 int32          `json:"linuxUID"`
	DataHostDirectory        string         `json:"dataHostDirectory"`
	DataContainerDirectory   string         `json:"dataContainerDirectory"`
	Home                     string         `json:"home"`
	Work                     string         `json:"work"`
	Custom                   string         `json:"custom"`
	AppIni                   string         `json:"appIni"`
	Bin                      string         `json:"bin"`
	Tmp                      string         `json:"tmp"`
	SecretHostDirectory      string         `json:"secretHostDirectory"`
	SecretContainerDirectory string         `json:"secretContainerDirectory"`
	SecretKey                string         `json:"secretKey"`
	InternalToken            string         `json:"internalToken"`
	LfsJwtSecret             string         `json:"lfsJwtSecret"`
	Oauth2Enable             bool           `json:"oauth2Enable"`
	Oauth2JwtSigningAlgo     string         `json:"oauth2JwtSigningAlgo"`
	Oauth2JwtSecret          string         `json:"oauth2JwtSecret"`
	Actions                  ForgejoActions `json:"actions"`
}

type ForgejoActions struct {
	Enabled           bool   `json:"enabled"`
	DefaultActionsURL string `json:"defaultActionsURL"`
}

type Gotosocial struct {
	Version                  string `json:"version"`
	Name                     string `json:"name"`
	LogLevel                 string `json:"logLevel"`
	LinuxUID                 int32  `json:"linuxUID"`
	Subdomain                string `json:"subdomain"`
	ContainerName            string `json:"containerName"`
	ContainerIpv4Address     string `json:"containerIpv4Address"`
	Port                     int32  `json:"port"`
	DataHostDirectory        string `json:"dataHostDirectory"`
	DataContainerDirectory   string `json:"dataContainerDirectory"`
	AccountsRegistrationOpen bool   `json:"accountsRegistrationOpen"`
	AccountsAllowCustomCss   bool   `json:"accountsAllowCustomCss"`
	LandingPageUser          string `json:"landingPageUser"`
	WebBaseDirectory         string `json:"webBaseDirectory"`
	TZ                       string `json:"tz"`
}

type Woodpecker struct {
	Version                string `json:"version"`
	LogLevel               string `json:"logLevel"`
	LinuxUID               int32  `json:"linuxUID"`
	Subdomain              string `json:"subdomain"`
	GrpcSubdomain          string `json:"grpcSubdomain"`
	ContainerName          string `json:"containerName"`
	ContainerIpv4Address   string `json:"containerIpv4Address"`
	HttpPort               int32  `json:"httpPort"`
	GrpcPort               int32  `json:"grpcPort"`
	DataHostDirectory      string `json:"dataHostDirectory"`
	DataContainerDirectory string `json:"dataContainerDirectory"`
	Admin                  string `json:"admin"`
	Open                   bool   `json:"open"`
	AgentSecret            string `json:"agentSecret"`
	ForgejoClientID        string `json:"forgejoClientID"`
	ForgejoClientSecret    string `json:"forgejoClientSecret"`
}

type LandingPage struct {
	Version              string             `json:"version"`
	ContainerName        string             `json:"containerName"`
	ContainerIpv4Address string             `json:"containerIpv4Address"`
	Services             []LandingPageLinks `json:"services"`
	Profiles             []LandingPageLinks `json:"profiles"`
	Port                 int32              `json:"port"`
	ImageDigest          string             `json:"imageDigest"`
}

type LandingPageLinks struct {
	Title string `json:"title"`
	URL   string `json:"url"`
	Rel   string `json:"rel"`
}

func NewConfig(environment string) (Config, error) {
	var c Config

	path := filepath.Join(configDir, environment, configFileName)

	f, err := os.Open(path)
	if err != nil {
		return c, fmt.Errorf("unable to open the file; %w", err)
	}
	defer f.Close()

	decoder := json.NewDecoder(f)

	if err = decoder.Decode(&c); err != nil {
		return c, fmt.Errorf("unable to decode JSON data; %w", err)
	}

	return c, nil
}