package platformsettings

import (
	"strings"

	"github.com/descrybe/descrybe-v2/apps/api/internal/billing"
)

// Well-known Values map keys for integrations (Agent 6).
// Stored in company_settings JSON under the system company (see Service).
const (
	KeyStripeSecretKey      = "stripe.secret_key"
	KeyStripeWebhookSecret  = "stripe.webhook_secret"
	KeyStripeMock           = "stripe.mock"
	KeyStripePriceStarterMo = "stripe.price.starter.monthly"
	KeyStripePriceStarterYr = "stripe.price.starter.yearly"
	KeyStripePricePlusMo    = "stripe.price.plus.monthly"
	KeyStripePricePlusYr    = "stripe.price.plus.yearly"
	KeyStripePriceGrowthMo  = "stripe.price.growth.monthly"
	KeyStripePriceGrowthYr  = "stripe.price.growth.yearly"
	KeyStripePriceBizMo     = "stripe.price.business.monthly"
	KeyStripePriceBizYr     = "stripe.price.business.yearly"
	KeyStripePriceScaleMo   = "stripe.price.scale.monthly"
	KeyStripePriceScaleYr   = "stripe.price.scale.yearly"
	// Legacy aliases for common packs (also generated via billing.CreditPackSettingsKey).
	KeyStripePricePackSmall  = "stripe.price.pack.small"
	KeyStripePricePackMedium = "stripe.price.pack.medium"
	KeyStripePricePackLarge  = "stripe.price.pack.large"
	KeyStripePricePackXL     = "stripe.price.pack.xl"

	KeyEPRELEnabled       = "eprel.enabled"
	KeyEPRELBaseURL       = "eprel.base_url"
	KeyEPRELTimeout       = "eprel.timeout"
	KeyEPRELFicheLanguage = "eprel.fiche_language"
	KeyEPRELAPIKey        = "eprel.api_key"

	KeyFeedPrivateAllowlist = "feeds.private_url_allowlist"

	KeyPineconeAPIKey    = "pinecone.api_key"
	KeyPineconeHost      = "pinecone.host"
	KeyPineconeNamespace = "pinecone.namespace"
)

// SecretValueKeys are Values entries stored as enc:v1: ciphertext.
func SecretValueKeys() map[string]struct{} {
	return map[string]struct{}{
		KeyStripeSecretKey:     {},
		KeyStripeWebhookSecret: {},
		KeyEPRELAPIKey:         {},
		ValueKeyResendAPIKey:   {},
		KeyPineconeAPIKey:      {},
	}
}

// AllowedValueKeys is the allowlist for Values bag writes (mass-assignment guard).
func AllowedValueKeys() map[string]struct{} {
	out := map[string]struct{}{
		KeyStripeSecretKey:      {},
		KeyStripeWebhookSecret:  {},
		KeyStripeMock:           {},
		KeyStripePriceStarterMo: {},
		KeyStripePriceStarterYr: {},
		KeyStripePricePlusMo:    {},
		KeyStripePricePlusYr:    {},
		KeyStripePriceGrowthMo:  {},
		KeyStripePriceGrowthYr:  {},
		KeyStripePriceBizMo:     {},
		KeyStripePriceBizYr:     {},
		KeyStripePriceScaleMo:   {},
		KeyStripePriceScaleYr:   {},
		KeyEPRELEnabled:         {},
		KeyEPRELBaseURL:         {},
		KeyEPRELTimeout:         {},
		KeyEPRELFicheLanguage:   {},
		KeyEPRELAPIKey:          {},
		KeyFeedPrivateAllowlist: {},
		KeyPineconeAPIKey:       {},
		KeyPineconeHost:         {},
		KeyPineconeNamespace:    {},
		ValueKeyResendAPIKey:    {},
		ValueKeyEmailDryRun:     {},
	}
	for _, pack := range billing.DefaultCreditPacks() {
		out[billing.CreditPackSettingsKey(pack.ID)] = struct{}{}
	}
	return out
}

func isSecretValueKey(key string) bool {
	_, ok := SecretValueKeys()[key]
	return ok
}

func isAllowedValueKey(key string) bool {
	_, ok := AllowedValueKeys()[key]
	return ok
}

// EPREL fiche language codes accepted by the admin UI / EC API language query param.
var eprelFicheLanguages = map[string]struct{}{
	"EN": {}, "DE": {}, "FR": {}, "NL": {}, "ES": {}, "IT": {},
}

// NormalizeEPRELFicheLanguage uppercases and allowlists fiche language codes.
func NormalizeEPRELFicheLanguage(raw string) (string, error) {
	code := strings.ToUpper(strings.TrimSpace(raw))
	if code == "" {
		return "EN", nil
	}
	if _, ok := eprelFicheLanguages[code]; !ok {
		return "", ClientMsg("unsupported eprel fiche language")
	}
	return code, nil
}