Files
gochat/internal/config/validator.go
T

120 lines
3.7 KiB
Go

package config
import (
"fmt"
"net/url"
"strconv"
"strings"
"time"
)
// Validate checks the configuration for required fields and valid values.
// Similar to Chatwoot's config validation in config/initializers.
func Validate(cfg *Config) error {
// Server validation
if cfg.Server.Port < 1 || cfg.Server.Port > 65535 {
return fmt.Errorf("invalid server port: %d", cfg.Server.Port)
}
if cfg.Server.Mode != "debug" && cfg.Server.Mode != "release" && cfg.Server.Mode != "test" {
return fmt.Errorf("invalid server mode: %s (must be debug, release, or test)", cfg.Server.Mode)
}
// Database validation (ref: Chatwoot requires POSTGRES_* env vars)
if cfg.Database.Host == "" {
return fmt.Errorf("database host is required")
}
if cfg.Database.Name == "" {
return fmt.Errorf("database name is required")
}
if cfg.Database.User == "" {
return fmt.Errorf("database user is required")
}
// Redis validation (ref: Chatwoot config/cable.yml requires REDIS_URL)
if cfg.Redis.URL == "" {
return fmt.Errorf("redis url is required")
}
redisURL, err := url.Parse(cfg.Redis.URL)
if err != nil {
return fmt.Errorf("invalid redis URL: %w", err)
}
if redisURL.Scheme != "redis" && redisURL.Scheme != "rediss" {
return fmt.Errorf("invalid redis URL: scheme must be redis or rediss, got %s", redisURL.Scheme)
}
if redisURL.Host == "" {
return fmt.Errorf("invalid redis URL: host is required")
}
// JWT validation
if cfg.JWT.Secret == "" || cfg.JWT.Secret == "change-me-in-production" {
if cfg.Server.Mode == "release" {
return fmt.Errorf("JWT secret must be changed in production mode")
}
}
// Log validation
validLogLevels := map[string]bool{"debug": true, "info": true, "warn": true, "error": true}
if !validLogLevels[cfg.Log.Level] {
return fmt.Errorf("invalid log level: %s", cfg.Log.Level)
}
// Worker validation (ref: Chatwoot sidekiq.yml concurrency check)
if cfg.Worker.Concurrency < 1 {
return fmt.Errorf("worker concurrency must be >= 1")
}
// Rate limit validation
if cfg.RateLimit.RequestsPerMinute < 1 {
return fmt.Errorf("rate_limit.requests_per_minute must be >= 1")
}
if cfg.RateLimit.WindowSeconds < 1 {
return fmt.Errorf("rate_limit.window_seconds must be >= 1")
}
// Search validation. Meilisearch is the production parity engine; db remains
// available only as an explicit development fallback.
engine := strings.ToLower(cfg.Search.Engine)
if engine == "" {
engine = "meilisearch"
}
if engine != "meilisearch" && engine != "db" {
return fmt.Errorf("invalid search engine: %s (must be meilisearch or db)", cfg.Search.Engine)
}
if engine == "db" && cfg.Server.Mode == "release" {
return fmt.Errorf("search.engine=db is only allowed for local development; release mode requires meilisearch")
}
if engine == "meilisearch" {
if cfg.Search.Host == "" {
return fmt.Errorf("search.host is required when search.engine=meilisearch")
}
searchURL, err := url.Parse(cfg.Search.Host)
if err != nil || searchURL.Scheme == "" || searchURL.Host == "" {
return fmt.Errorf("invalid search.host: %s", cfg.Search.Host)
}
}
if cfg.Search.TimeoutSeconds < 0 {
return fmt.Errorf("search.timeout_seconds must be >= 0")
}
return nil
}
// ParseStatementTimeout converts the string timeout to time.Duration.
func ParseStatementTimeout(timeout string) (time.Duration, error) {
if timeout == "" {
return 14 * time.Second, nil
}
// Handle plain seconds (e.g., "14s")
if secs, err := strconv.Atoi(timeout); err == nil {
return time.Duration(secs) * time.Second, nil
}
// Handle Go duration format (e.g., "14s", "500ms")
d, err := time.ParseDuration(timeout)
if err != nil {
return 0, fmt.Errorf("invalid statement_timeout format: %s", timeout)
}
return d, nil
}