config

type BackupConfig struct {
	Schedule string `yaml:"schedule"` // cron format (e.g., "0 2 * * *")
	Retain   int    `yaml:"retain"`   // days to retain backups
}

type CacheConfig struct {
	Enabled   bool   `yaml:"enabled,omitempty"`   // Enable build caching (default: true)
	Type      string `yaml:"type,omitempty"`      // "local" (default), "registry"
	Retention string `yaml:"retention,omitempty"` // Cache retention period (e.g., "7d")
}

type Config struct {
	Project        ProjectConfig                `yaml:"project"`
	Infrastructure *InfrastructureConfig        `yaml:"infrastructure,omitempty"` // Cloud infrastructure provisioning
	Deployment     *DeploymentConfig            `yaml:"deployment,omitempty"`
	Notifications  *NotificationsConfig         `yaml:"notifications,omitempty"`
	Storage        *StorageConfig               `yaml:"storage,omitempty"`
	Volumes        map[string]VolumeConfig      `yaml:"volumes,omitempty"` // Top-level volume definitions
	Servers        map[string]ServerConfig      `yaml:"servers"`
	Environments   map[string]EnvironmentConfig `yaml:"environments"`
}

type DeployConfig struct {
	Strategy       string `yaml:"strategy"` // blue-green or rolling
	MaxUnavailable int    `yaml:"maxUnavailable,omitempty"`
}

type DeploymentConfig struct {
	Strategy string          `yaml:"strategy,omitempty"` // "parallel" or "sequential" (default: sequential)
	Parallel *ParallelConfig `yaml:"parallel,omitempty"`
	Cache    *CacheConfig    `yaml:"cache,omitempty"`
}

type EnvironmentConfig struct {
	Servers        []string                 `yaml:"servers"`                  // List of server names to use
	ServerSelector *ServerSelector          `yaml:"serverSelector,omitempty"` // Label-based server selection
	Labels         map[string]string        `yaml:"labels,omitempty"`         // Environment labels for Docker nodes
	Services       map[string]ServiceConfig `yaml:"services"`                 // Services to deploy in this environment
}

type HealthCheckConfig struct {
	Path        string `yaml:"path"`
	Interval    string `yaml:"interval"`
	Timeout     string `yaml:"timeout"`
	Retries     int    `yaml:"retries"`
	StartPeriod string `yaml:"startPeriod,omitempty"` // Grace period before starting checks
}

type HooksConfig struct {
	PreBuild   []string `yaml:"preBuild,omitempty"`   // Before building Docker image
	PostBuild  []string `yaml:"postBuild,omitempty"`  // After building Docker image
	PreDeploy  []string `yaml:"preDeploy,omitempty"`  // Before deploying service to swarm
	PostDeploy []string `yaml:"postDeploy,omitempty"` // After deploying service to swarm
	PostStart  []string `yaml:"postStart,omitempty"`  // After service is running (can use docker exec)
}

type InfraBucketSpec struct {
	Region string `yaml:"region,omitempty"` // Override region (defaults to infra region)
	ACL    string `yaml:"acl,omitempty"`    // Access: private, public-read (default: private)
	CORS   bool   `yaml:"cors,omitempty"`   // Enable CORS for web access
}

type InfraCDNConfig struct {
	Enabled bool                      `yaml:"enabled"`
	Origins map[string]InfraCDNOrigin `yaml:"origins,omitempty"` // Named CDN origins
}

type InfraCDNOrigin struct {
	Bucket string `yaml:"bucket,omitempty"` // Reference to storage bucket
	Domain string `yaml:"domain,omitempty"` // Custom origin domain
	TTL    int    `yaml:"ttl,omitempty"`    // Cache TTL in seconds (default: 86400)
}

type InfraCredentialsConfig struct {
	Token     string `yaml:"token,omitempty"`     // API token (DO, Hetzner, Linode) - defaults to env var
	AccessKey string `yaml:"accessKey,omitempty"` // AWS access key
	SecretKey string `yaml:"secretKey,omitempty"` // AWS secret key
	ProjectID string `yaml:"projectId,omitempty"` // Project/Account ID if needed
}

type InfraDefaultsConfig struct {
	Size    string   `yaml:"size,omitempty"`     // Default size: small, medium, large, xlarge
	Image   string   `yaml:"image,omitempty"`    // Default OS image (auto-detected if empty)
	SSHKeys []string `yaml:"ssh_keys,omitempty"` // Default SSH key fingerprints for cloud provider
	Tags    []string `yaml:"tags,omitempty"`     // Default tags applied to all servers
}

type InfraFirewallConfig struct {
	Enabled bool                `yaml:"enabled"`
	Name    string              `yaml:"name,omitempty"` // Firewall name (auto-generated if empty)
	Rules   []InfraFirewallRule `yaml:"rules,omitempty"`
}

type InfraFirewallRule struct {
	Protocol string   `yaml:"protocol"`          // tcp, udp, icmp
	Ports    []int    `yaml:"ports,omitempty"`   // Port numbers (empty = all)
	Sources  []string `yaml:"sources,omitempty"` // CIDR addresses (e.g., 0.0.0.0/0)
}

type InfraNetworkingConfig struct {
	VPC      *InfraVPCConfig      `yaml:"vpc,omitempty"`
	Firewall *InfraFirewallConfig `yaml:"firewall,omitempty"`
}

type InfraServerSpec struct {
	Provider string   `yaml:"provider,omitempty"` // Override provider (for multi-cloud setups)
	Region   string   `yaml:"region,omitempty"`   // Override region (for multi-region/multi-cloud)
	Size     string   `yaml:"size,omitempty"`     // Size: small, medium, large, xlarge (or provider-specific)
	Image    string   `yaml:"image,omitempty"`    // OS image (uses default if empty)
	Role     string   `yaml:"role,omitempty"`     // "manager" or "worker" (default: worker)
	Count    int      `yaml:"count,omitempty"`    // Number of servers (default: 1)
	SSHKeys  []string `yaml:"ssh_keys,omitempty"` // SSH key fingerprints (uses defaults if empty)
	Tags     []string `yaml:"tags,omitempty"`     // Server tags/labels
	UserData string   `yaml:"userData,omitempty"` // Cloud-init script
}

type InfraStateConfig struct {
	Backend   string `yaml:"backend,omitempty"`   // "local" (default), "s3", or "manager"
	Bucket    string `yaml:"bucket,omitempty"`    // S3 bucket name for s3 backend
	Region    string `yaml:"region,omitempty"`    // S3 region (defaults to infra region)
	Endpoint  string `yaml:"endpoint,omitempty"`  // Custom S3 endpoint (for DO Spaces, Linode Object Storage)
	Encrypt   bool   `yaml:"encrypt,omitempty"`   // Enable state encryption (default: true for remote backends)
	AccessKey string `yaml:"accessKey,omitempty"` // S3 access key (defaults to provider credentials)
	SecretKey string `yaml:"secretKey,omitempty"` // S3 secret key (defaults to provider credentials)
}

type InfraStorageConfig struct {
	Buckets map[string]InfraBucketSpec `yaml:"buckets,omitempty"` // Named bucket definitions
}

type InfraVPCConfig struct {
	Enabled bool   `yaml:"enabled"`
	Name    string `yaml:"name,omitempty"`     // VPC name (auto-generated if empty)
	IPRange string `yaml:"ip_range,omitempty"` // CIDR (e.g., 10.0.0.0/16)
}

type InfrastructureConfig struct {
	Provider    string                     `yaml:"provider"`              // digitalocean, hetzner, aws, linode
	Region      string                     `yaml:"region"`                // Provider-specific region (or friendly name like "nyc", "frankfurt")
	Credentials InfraCredentialsConfig     `yaml:"credentials,omitempty"` // Provider credentials (can use env vars)
	SSHKey      string                     `yaml:"ssh_key,omitempty"`     // Local SSH key path for connecting to provisioned servers
	SSHUser     string                     `yaml:"ssh_user,omitempty"`    // SSH user (default: root)
	Defaults    *InfraDefaultsConfig       `yaml:"defaults,omitempty"`    // Default values for servers
	Servers     map[string]InfraServerSpec `yaml:"servers"`               // Server definitions
	Networking  *InfraNetworkingConfig     `yaml:"networking,omitempty"`
	Storage     *InfraStorageConfig        `yaml:"storage,omitempty"` // Object storage (S3-compatible)
	CDN         *InfraCDNConfig            `yaml:"cdn,omitempty"`     // CDN configuration
	State       *InfraStateConfig          `yaml:"state,omitempty"`   // State backend configuration (for multi-machine sync)
}

type LoadBalancerConfig struct {
	Strategy    string                  `yaml:"strategy"` // round_robin, least_conn, ip_hash, random
	HealthCheck LoadBalancerHealthCheck `yaml:"healthCheck,omitempty"`
}

type LoadBalancerHealthCheck struct {
	Enabled  bool   `yaml:"enabled"`
	Path     string `yaml:"path"`
	Interval string `yaml:"interval"`
}

type MonitoringConfig struct {
	Enabled   bool   `yaml:"enabled"`             // Enable monitoring for this service
	Interval  string `yaml:"interval,omitempty"`  // Check interval (e.g., "60s")
	Webhook   string `yaml:"webhook,omitempty"`   // Webhook URL for alerts
	CheckType string `yaml:"checkType,omitempty"` // "http" or "container" (default: auto-detect)
}

type NFSConfig struct {
	Enabled bool              `yaml:"enabled"`
	Server  string            `yaml:"server,omitempty"` // "auto" = use manager node, or specify server name
	Exports []NFSExportConfig `yaml:"exports,omitempty"`
}

type NFSExportConfig struct {
	Name    string   `yaml:"name"`              // Name of the export (used in volume references)
	Path    string   `yaml:"path"`              // Path on the NFS server
	Size    string   `yaml:"size,omitempty"`    // Optional: expected size for provisioning hints
	Options []string `yaml:"options,omitempty"` // NFS export options (e.g., rw, sync, no_subtree_check)
}

type NotificationsConfig struct {
	Slack   string `yaml:"slack,omitempty"`   // Slack webhook URL
	Discord string `yaml:"discord,omitempty"` // Discord webhook URL
	Webhook string `yaml:"webhook,omitempty"` // Generic webhook URL
}

type ParallelConfig struct {
	MaxConcurrentBuilds  int    `yaml:"maxConcurrentBuilds,omitempty"`  // Default: 4
	MaxConcurrentDeploys int    `yaml:"maxConcurrentDeploys,omitempty"` // Default: 4
	Strategy             string `yaml:"strategy,omitempty"`             // "dependency-aware" (default), "resource-aware", "round-robin"
}

type PlacementConfig struct {
	Strategy    string   `yaml:"strategy,omitempty"`    // "spread", "pinned", "any"
	Servers     []string `yaml:"servers,omitempty"`     // Pin to specific servers (for "pinned" strategy)
	Constraints []string `yaml:"constraints,omitempty"` // Docker Swarm constraints (e.g., "node.labels.type==high-memory")
	Preferences []string `yaml:"preferences,omitempty"` // Docker Swarm placement preferences (e.g., "spread=node.labels.region")
}

type ProjectConfig struct {
	Name    string `yaml:"name"`
	Version string `yaml:"version"`
}

type ProxyConfig struct {
	// Domain is the primary domain where traffic is served (recommended)
	// Use this with RedirectFrom for cleaner configuration
	Domain string `yaml:"domain,omitempty"`

	// RedirectFrom specifies domains that should redirect to the primary Domain
	// These domains will get their own TLS certificates and 301 redirect to Domain
	// Example: ["www.example.com", "old.example.com"] -> redirects to "example.com"
	RedirectFrom []string `yaml:"redirectFrom,omitempty"`

	// Domains is the legacy field for backward compatibility
	// If Domain is not set, the first domain in Domains is treated as primary
	// Deprecated: Use Domain + RedirectFrom instead for clearer configuration
	Domains []string `yaml:"domains,omitempty"`

	Email string    `yaml:"email,omitempty"` // Email for Let's Encrypt
	TLS   TLSConfig `yaml:"tls,omitempty"`
}

type SecretConfig struct {
	Name   string `yaml:"name"`             // Secret name (e.g., "db_password")
	Source string `yaml:"source,omitempty"` // Source: "env:VAR" or "file:path" (default: env:NAME)
	Target string `yaml:"target,omitempty"` // Target path in container (default: /run/secrets/{name})
}

type ServerConfig struct {
	Host     string            `yaml:"host"`
	User     string            `yaml:"user"`
	Port     int               `yaml:"port,omitempty"`
	SSHKey   string            `yaml:"sshKey,omitempty"`   // Path to SSH private key (mutually exclusive with password)
	Password string            `yaml:"password,omitempty"` // SSH password (mutually exclusive with sshKey, use env var for security)
	Role     string            `yaml:"role,omitempty"`     // "manager" or "worker" (auto-detect if not specified)
	Labels   map[string]string `yaml:"labels,omitempty"`   // Custom labels for server selection
}

type ServerSelector struct {
	Labels map[string]string `yaml:"labels,omitempty"` // Match servers with these labels
	Any    bool              `yaml:"any,omitempty"`    // Select any available server
}

type ServiceConfig struct {
	// Build or Image (mutually exclusive)
	Build string `yaml:"build,omitempty"` // Path to build context (auto-detects Dockerfile)
	Image string `yaml:"image,omitempty"` // Pre-built image (for postgres, redis, etc)

	// Basic settings
	Port     int               `yaml:"port,omitempty"`
	Command  string            `yaml:"command,omitempty"`
	Replicas int               `yaml:"replicas,omitempty"` // Default: 1
	Restart  string            `yaml:"restart,omitempty"`  // Docker restart policy (always, unless-stopped, on-failure, no)
	Env      map[string]string `yaml:"env,omitempty"`
	EnvFile  string            `yaml:"envFile,omitempty"` // Path to .env file (e.g., .env.production)

	// Secrets: Can be either string array (new Tako secrets) or SecretConfig array (Docker Swarm secrets)
	// String format: ["DATABASE_URL", "JWT_SECRET"] or ["VAR_NAME:SECRET_KEY"]
	// SecretConfig format: [{name: "db_pass", source: "env:DB_PASSWORD"}]
	Secrets       []string       `yaml:"secrets,omitempty"`       // Tako secrets from .tako/secrets files
	DockerSecrets []SecretConfig `yaml:"dockerSecrets,omitempty"` // Docker Swarm secrets (for backward compatibility)
	Volumes       []string       `yaml:"volumes,omitempty"`

	// Service type flags
	Persistent bool `yaml:"persistent,omitempty"` // Don't remove on redeploy (databases, caches)

	// Per-service proxy settings (if present, service is exposed publicly)
	Proxy *ProxyConfig `yaml:"proxy,omitempty"`

	// Load balancing (for multi-replica services)
	LoadBalancer LoadBalancerConfig `yaml:"loadBalancer,omitempty"`

	// Health checks
	HealthCheck HealthCheckConfig `yaml:"healthCheck,omitempty"`

	// Deployment strategy
	Deploy DeployConfig `yaml:"deploy,omitempty"`

	// Per-service hooks
	Hooks *HooksConfig `yaml:"hooks,omitempty"`

	// Per-service backup
	Backup *BackupConfig `yaml:"backup,omitempty"`

	// Per-service monitoring
	Monitoring *MonitoringConfig `yaml:"monitoring,omitempty"`

	// Cross-project networking
	Export  bool     `yaml:"export,omitempty"`  // Export this service to other projects
	Imports []string `yaml:"imports,omitempty"` // Import services from other projects (format: "project.service")

	// Placement configuration (for Swarm multi-server deployments)
	Placement *PlacementConfig `yaml:"placement,omitempty"` // Where to run service replicas

	// Service dependencies (controls deployment order)
	DependsOn []string `yaml:"dependsOn,omitempty"` // List of service names this service depends on

	// Init commands (run before service starts, useful for permissions)
	Init []string `yaml:"init,omitempty"` // Commands to run before service starts (e.g., chown, chmod)
}

type StorageConfig struct {
	NFS *NFSConfig `yaml:"nfs,omitempty"`
}

type TLSConfig struct {
	Provider string `yaml:"provider,omitempty"` // letsencrypt, zerossl (default: letsencrypt)
	Staging  bool   `yaml:"staging,omitempty"`
}

type VolumeConfig struct {
	Driver     string            `yaml:"driver,omitempty"`      // Volume driver (default: "local")
	DriverOpts map[string]string `yaml:"driver_opts,omitempty"` // Driver-specific options
	Labels     map[string]string `yaml:"labels,omitempty"`      // Volume labels
	External   bool              `yaml:"external,omitempty"`    // If true, volume must already exist
	Name       string            `yaml:"name,omitempty"`        // Override the auto-generated name (opt-out of prefix)
}