package config

import (
	"fmt"
)

// Action represents the core functionality of OliveTin - commands that show up
// as buttons in the UI.
type Action struct {
	ID                     string
	Title                  string
	Icon                   string
	Shell                  string
	ShellAfterCompleted    string
	Timeout                int
	Acls                   []string
	Entity                 string
	Hidden                 bool
	ExecOnStartup          bool
	ExecOnCron             []string
	ExecOnFileCreatedInDir []string
	ExecOnFileChangedInDir []string
	ExecOnCalendarFile     string
	Trigger                string
	MaxConcurrent          int
	MaxRate                []RateSpec
	Arguments              []ActionArgument
	PopupOnStart           string
	SaveLogs               SaveLogsConfig
}

// ActionArgument objects appear on Actions.
type ActionArgument struct {
	Name        string
	Title       string
	Description string
	Type        string
	Default     string
	Choices     []ActionArgumentChoice
	Entity      string
	RejectNull  bool
	Suggestions map[string]string
}

// ActionArgumentChoice represents a predefined choice for an argument.
type ActionArgumentChoice struct {
	Value string
	Title string
}

// RateSpec allows you to set a max frequency for an action.
type RateSpec struct {
	Limit    int
	Duration string
}

// Entity represents a "thing" that can have multiple actions associated with it.
// for example, a media player with a start and stop action.
type EntityFile struct {
	File string
	Name string
	Icon string
}

// PermissionsList defines what users can do with an action.
type PermissionsList struct {
	View bool
	Exec bool
	Logs bool
}

// AccessControlList defines what permissions apply to a user or user group.
type AccessControlList struct {
	Name             string
	AddToEveryAction bool
	MatchUsergroups  []string
	MatchUsernames   []string
	Permissions      PermissionsList
}

type PrometheusConfig struct {
	Enabled          bool
	DefaultGoMetrics bool
}

// Config is the global config used through the whole app.
type Config struct {
	UseSingleHTTPFrontend           bool
	ThemeName                       string
	ThemeCacheDisabled              bool
	ListenAddressSingleHTTPFrontend string
	ListenAddressWebUI              string
	ListenAddressRestActions        string
	ListenAddressGrpcActions        string
	ListenAddressPrometheus         string
	ExternalRestAddress             string
	LogLevel                        string
	LogDebugOptions                 LogDebugOptions
	Actions                         []*Action             `mapstructure:"actions"`
	Entities                        []*EntityFile         `mapstructure:"entities"`
	Dashboards                      []*DashboardComponent `mapstructure:"dashboards"`
	CheckForUpdates                 bool
	PageTitle                       string
	ShowFooter                      bool
	ShowNavigation                  bool
	ShowNewVersions                 bool
	EnableCustomJs                  bool
	AuthJwtCookieName               string
	AuthJwtAud                      string
	AuthJwtDomain                   string
	AuthJwtCertsURL                 string
	AuthJwtHmacSecret               string // mutually exclusive with pub key config fields
	AuthJwtClaimUsername            string
	AuthJwtClaimUserGroup           string
	AuthJwtPubKeyPath               string // will read pub key from file on disk
	AuthHttpHeaderUsername          string
	AuthHttpHeaderUserGroup         string
	DefaultPermissions              PermissionsList
	AccessControlLists              []*AccessControlList
	WebUIDir                        string
	CronSupportForSeconds           bool
	SectionNavigationStyle          string
	DefaultPopupOnStart             string
	InsecureAllowDumpVars           bool
	InsecureAllowDumpSos            bool
	InsecureAllowDumpActionMap      bool
	InsecureAllowDumpJwtClaims      bool
	Prometheus                      PrometheusConfig
	SaveLogs                        SaveLogsConfig
	DefaultIconForActions           string
	DefaultIconForDirectories       string
	DefaultIconForBack              string
	AuthLoginUrl                    string
	AuthAllowGuest                  bool

	usedConfigDir string
}

type SaveLogsConfig struct {
	ResultsDirectory string
	OutputDirectory  string
}

type LogDebugOptions struct {
	SingleFrontendRequests       bool
	SingleFrontendRequestHeaders bool
	AclMatched                   bool
	AclNotMatched                bool
	AclNoneMatched               bool
}

type DashboardComponent struct {
	Title    string
	Type     string
	Entity   string
	Icon     string
	CssClass string
	Contents []DashboardComponent
}

func DefaultConfig() *Config {
	return DefaultConfigWithBasePort(1337)
}

// DefaultConfig gets a new Config structure with sensible default values.
func DefaultConfigWithBasePort(basePort int) *Config {
	config := Config{}
	config.UseSingleHTTPFrontend = true
	config.PageTitle = "OliveTin"
	config.ShowFooter = true
	config.ShowNavigation = true
	config.ShowNewVersions = true
	config.EnableCustomJs = false
	config.ExternalRestAddress = "."
	config.LogLevel = "INFO"
	config.CheckForUpdates = false
	config.DefaultPermissions.Exec = true
	config.DefaultPermissions.View = true
	config.DefaultPermissions.Logs = true
	config.AuthJwtClaimUsername = "name"
	config.AuthJwtClaimUserGroup = "group"
	config.AuthAllowGuest = true
	config.WebUIDir = "./webui"
	config.CronSupportForSeconds = false
	config.SectionNavigationStyle = "sidebar"
	config.DefaultPopupOnStart = "nothing"
	config.InsecureAllowDumpVars = false
	config.InsecureAllowDumpSos = false
	config.InsecureAllowDumpActionMap = false
	config.InsecureAllowDumpJwtClaims = false
	config.Prometheus.Enabled = false
	config.Prometheus.DefaultGoMetrics = false
	config.DefaultIconForActions = "😀"
	config.DefaultIconForDirectories = "&#128193"
	config.DefaultIconForBack = "«"
	config.ThemeCacheDisabled = false

	config.ListenAddressSingleHTTPFrontend = fmt.Sprintf("0.0.0.0:%d", basePort)
	config.ListenAddressRestActions = fmt.Sprintf("localhost:%d", basePort+1)
	config.ListenAddressGrpcActions = fmt.Sprintf("localhost:%d", basePort+2)
	config.ListenAddressWebUI = fmt.Sprintf("localhost:%d", basePort+3)
	config.ListenAddressPrometheus = fmt.Sprintf("localhost:%d", basePort+4)

	return &config
}