// Package cloudinit implements a lightweight cloud-init parser for KubeSolo OS.
//
// It reads a simplified cloud-init YAML config and applies:
//   - hostname
//   - network configuration (static IP or DHCP)
//   - KubeSolo extra flags and settings
//   - NTP servers
//
// The config file is typically at /mnt/data/etc-kubesolo/cloud-init.yaml
// or specified via kubesolo.cloudinit= boot parameter.
package cloudinit

// Config is the top-level cloud-init configuration.
type Config struct {
	Hostname string          `yaml:"hostname"`
	Network  NetworkConfig   `yaml:"network"`
	KubeSolo KubeSoloConfig  `yaml:"kubesolo"`
	NTP      NTPConfig       `yaml:"ntp"`
	Airgap   AirgapConfig    `yaml:"airgap"`
	Portainer PortainerConfig `yaml:"portainer"`
}

// NetworkConfig defines network settings.
type NetworkConfig struct {
	Mode      string   `yaml:"mode"`      // "dhcp" or "static"
	Interface string   `yaml:"interface"` // e.g. "eth0" (auto-detected if empty)
	Address   string   `yaml:"address"`   // CIDR notation, e.g. "192.168.1.100/24"
	Gateway   string   `yaml:"gateway"`   // e.g. "192.168.1.1"
	DNS       []string `yaml:"dns"`       // nameservers
}

// KubeSoloConfig defines KubeSolo-specific settings.
type KubeSoloConfig struct {
	ExtraFlags             string   `yaml:"extra-flags"`
	LocalStorage           *bool    `yaml:"local-storage"`
	LocalStorageSharedPath string   `yaml:"local-storage-shared-path"`
	ExtraSANs              []string `yaml:"apiserver-extra-sans"`
	Debug                  bool     `yaml:"debug"`
	PprofServer            bool     `yaml:"pprof-server"`
	PortainerEdgeID        string   `yaml:"portainer-edge-id"`
	PortainerEdgeKey       string   `yaml:"portainer-edge-key"`
	PortainerEdgeAsync     bool     `yaml:"portainer-edge-async"`
}

// NTPConfig defines NTP settings.
type NTPConfig struct {
	Servers []string `yaml:"servers"`
}

// AirgapConfig defines air-gapped deployment settings.
type AirgapConfig struct {
	ImportImages bool   `yaml:"import-images"`
	ImagesDir    string `yaml:"images-dir"`
}

// PortainerConfig defines Portainer Edge Agent settings.
type PortainerConfig struct {
	EdgeAgent EdgeAgentConfig `yaml:"edge-agent"`
}

// EdgeAgentConfig holds Portainer Edge Agent connection details.
type EdgeAgentConfig struct {
	Enabled     bool   `yaml:"enabled"`
	EdgeID      string `yaml:"edge-id"`
	EdgeKey     string `yaml:"edge-key"`
	PortainerURL string `yaml:"portainer-url"`
	Image       string `yaml:"image"`
}