package config

import "time"

// Layer names used in Origin, most-significant first. Exported as
// constants so callers can compare without typos.
const (
	LayerFlag     = "flag"
	LayerEnv      = "env"
	LayerProfile  = "profile"
	LayerDefaults = "defaults"
	LayerBuiltin  = "builtin"
)

// Origin records which layer produced a resolved value and the key that
// carried it, so the UI/CLI can explain itself (e.g. status bar: "address:
// VAULT_ADDR").
type Origin struct {
	Layer string
	Key   string
}

// Settings is the fully flattened, precedence-resolved connection
// configuration for one profile. internal/vault.New builds an *api.Client
// from exactly this — it never re-reads env or config itself, which is what
// makes the flag>env>profile>defaults>builtin precedence in resolve.go the
// single source of truth (see resolve.go's package doc for why
// api.DefaultConfig()'s own env-reading must not be relied upon instead).
type Settings struct {
	Profile   string
	Address   string
	Namespace string

	CACert     string
	CAPath     string
	CACertPEM  []byte
	ClientCert string
	ClientKey  string
	ServerName string
	SkipVerify bool

	Timeout          time.Duration
	MaxRetries       int
	MinRetryWait     time.Duration
	MaxRetryWait     time.Duration
	SRVLookup        bool
	DisableRedirects bool
	HTTPProxy        string
	RateLimit        string
	Headers          map[string]string

	Auth  Auth
	Token TokenOpts

	ReadOnly           bool
	MaskValues         bool
	ConfirmDestructive bool
	RequireCAS         bool
	CacheTTL           time.Duration
	TTLWarnBelow       time.Duration
	ClipboardClear     time.Duration
	BrowserCommand     string
	Appearance         string
	NoColor            bool

	Origins map[string]Origin
}

// Fmt returns a short "value (source)" string for display, e.g.
// "https://vault.example.com (VAULT_ADDR)". Falls back to just the key name
// used by that layer when no origin was recorded for field.
func (s *Settings) OriginOf(field string) Origin {
	if s.Origins == nil {
		return Origin{}
	}
	return s.Origins[field]
}