package storage

import (
	edgeapi "git.sendico.io/tech/sxchnge/bff/edge/shared/interface/api"
	edgemongo "git.sendico.io/tech/sxchnge/bff/edge/shared/storage/mongo"
	"git.sendico.io/tech/sxchnge/bff/edge/shared/storage/ratelimits"
	"git.sendico.io/tech/sxchnge/bff/edge/shared/storage/refreshtokens"
	"git.sendico.io/tech/sxchnge/bff/edge/shared/storage/verification"
	"git.sendico.io/tech/sxchnge/bff/pkg/db"
	"git.sendico.io/tech/sxchnge/bff/pkg/db/account"
	"git.sendico.io/tech/sxchnge/bff/pkg/mlogger"
	"go.uber.org/zap"
)

type Stores struct {
	Accounts      account.DB
	Verification  verification.DB
	RefreshTokens refreshtokens.DB
	LoginAttempts ratelimits.Store
}

type TokenStores struct {
	Verification  verification.DB
	RefreshTokens refreshtokens.DB
}

type resolvedConfig struct {
	deps    *edgemongo.Dependencies
	storage edgeapi.AuthStorageConfig
}

func OpenStores(
	logger mlogger.Logger,
	dbf db.Factory,
	config *edgeapi.AuthStorageConfig,
) (*Stores, error) {
	resolved, err := resolve(logger, dbf, config)
	if err != nil {
		return nil, err
	}
	logger.Info(
		"Auth storage configured",
		zap.String("accounts_collection", resolved.storage.AccountsCollection),
		zap.String("refresh_tokens_collection", resolved.storage.RefreshTokensCollection),
		zap.String("clients_collection", resolved.storage.ClientsCollection),
		zap.String("verification_tokens_collection", resolved.storage.VerificationTokensCollection),
		zap.String("login_attempts_collection", resolved.storage.LoginAttemptsCollection),
		zap.String("verification_rate_limits_collection", resolved.storage.VerificationRateLimitsCollection),
	)

	adb, err := dbf.NewAccountDBWithCollection(resolved.storage.AccountsCollection)
	if err != nil {
		logger.Error("Failed to create account database", zap.Error(err), zap.String("collection", resolved.storage.AccountsCollection))
		return nil, err
	}

	tokens, err := openTokenStores(logger, resolved)
	if err != nil {
		return nil, err
	}

	attempts, err := ratelimits.Create(logger, resolved.deps.Database, resolved.storage.LoginAttemptsCollection)
	if err != nil {
		logger.Error("Failed to create login attempt database", zap.Error(err), zap.String("collection", resolved.storage.LoginAttemptsCollection))
		return nil, err
	}

	return &Stores{
		Accounts:      adb,
		Verification:  tokens.Verification,
		RefreshTokens: tokens.RefreshTokens,
		LoginAttempts: attempts,
	}, nil
}

func OpenTokenStores(
	logger mlogger.Logger,
	dbf db.Factory,
	config *edgeapi.AuthStorageConfig,
) (*TokenStores, error) {
	resolved, err := resolve(logger, dbf, config)
	if err != nil {
		return nil, err
	}
	logger.Info(
		"Auth token storage configured",
		zap.String("refresh_tokens_collection", resolved.storage.RefreshTokensCollection),
		zap.String("clients_collection", resolved.storage.ClientsCollection),
		zap.String("verification_tokens_collection", resolved.storage.VerificationTokensCollection),
		zap.String("verification_rate_limits_collection", resolved.storage.VerificationRateLimitsCollection),
	)
	return openTokenStores(logger, resolved)
}

func resolve(
	logger mlogger.Logger,
	dbf db.Factory,
	config *edgeapi.AuthStorageConfig,
) (*resolvedConfig, error) {
	deps, err := edgemongo.ResolveDependencies(dbf)
	if err != nil {
		logger.Error("Failed to resolve local auth storage dependencies", zap.Error(err))
		return nil, err
	}

	return &resolvedConfig{
		deps:    deps,
		storage: config.WithDefaults(),
	}, nil
}

func openTokenStores(logger mlogger.Logger, resolved *resolvedConfig) (*TokenStores, error) {
	rtdb, err := refreshtokens.CreateWithCollections(logger, resolved.deps.Database, refreshtokens.Collections{
		RefreshTokens: resolved.storage.RefreshTokensCollection,
		Clients:       resolved.storage.ClientsCollection,
	})
	if err != nil {
		logger.Error(
			"Failed to create refresh token management database",
			zap.Error(err),
			zap.String("refresh_tokens_collection", resolved.storage.RefreshTokensCollection),
			zap.String("clients_collection", resolved.storage.ClientsCollection),
		)
		return nil, err
	}
	verificationLimits, err := ratelimits.Create(logger, resolved.deps.Database, resolved.storage.VerificationRateLimitsCollection)
	if err != nil {
		logger.Error("Failed to create verification rate-limit database", zap.Error(err), zap.String("collection", resolved.storage.VerificationRateLimitsCollection))
		return nil, err
	}

	cdb, err := verification.CreateWithCollection(
		logger,
		resolved.deps.Database,
		resolved.deps.Transactions,
		resolved.storage.VerificationTokensCollection,
	)
	if err != nil {
		logger.Error("Failed to create verification token database", zap.Error(err), zap.String("collection", resolved.storage.VerificationTokensCollection))
		return nil, err
	}
	cdb.WithIssuanceLimits(verificationLimits)

	return &TokenStores{
		Verification:  cdb,
		RefreshTokens: rtdb,
	}, nil
}