package client

import (
	"context"
	"fmt"
	"time"

	"github.com/jackc/pgx/v5/pgxpool"
	"github.com/rs/zerolog"

	"github.com/gosec/gsc-ops-api/internal/config"
)

// CardDAVClient wraps a pgx connection pool for the sabredav database
type CardDAVClient struct {
	pool   *pgxpool.Pool
	logger zerolog.Logger
}

// NewCardDAVClient creates a new CardDAV database client
func NewCardDAVClient(cfg config.CardDAVConfig, dsn string, logger zerolog.Logger) (*CardDAVClient, error) {
	poolConfig, err := pgxpool.ParseConfig(dsn)
	if err != nil {
		return nil, fmt.Errorf("failed to parse carddav database config: %w", err)
	}

	poolConfig.MaxConns = 10
	poolConfig.MinConns = 2
	poolConfig.MaxConnLifetime = 1 * time.Hour
	poolConfig.MaxConnIdleTime = 30 * time.Minute
	poolConfig.HealthCheckPeriod = 1 * time.Minute

	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()

	pool, err := pgxpool.NewWithConfig(ctx, poolConfig)
	if err != nil {
		return nil, fmt.Errorf("failed to create carddav connection pool: %w", err)
	}

	if err := pool.Ping(ctx); err != nil {
		pool.Close()
		return nil, fmt.Errorf("failed to ping carddav database: %w", err)
	}

	return &CardDAVClient{
		pool:   pool,
		logger: logger.With().Str("client", "carddav").Logger(),
	}, nil
}

// Pool returns the underlying connection pool
func (c *CardDAVClient) Pool() *pgxpool.Pool {
	return c.pool
}

// Health checks the database connection
func (c *CardDAVClient) Health(ctx context.Context) error {
	return c.pool.Ping(ctx)
}

// Close closes the connection pool
func (c *CardDAVClient) Close() {
	if c.pool != nil {
		c.pool.Close()
	}
}