package kea

// Filesystem and binary paths inside the kea container image, plus the
// operator's label/annotation vocabulary.
const (
	// ContainerDHCP4 is the kea-dhcp4 container name.
	ContainerDHCP4 = "kea-dhcp4"
	// ContainerCtrlAgent is the kea-ctrl-agent container name.
	ContainerCtrlAgent = "kea-ctrl-agent"
	// ContainerInit is the initContainer that finalises config and waits for
	// HA peer DNS before the main containers start.
	ContainerInit = "kea-init"

	// ConfigDir is where projected config is mounted read-only.
	ConfigDir = "/etc/kea-operator"
	// RunDir is a shared emptyDir for the config copy and control socket. Kea
	// 2.6+ restricts unix socket paths to its compiled runstatedir and rejects
	// anything else by exact string ("supported path is '/var/run/kea'"), even
	// though /var/run symlinks to /run, so this must be the literal /var/run/kea.
	RunDir = "/var/run/kea"

	// DHCP4ConfPath is the runtime kea-dhcp4 config.
	DHCP4ConfPath = RunDir + "/kea-dhcp4.conf"
	// CtrlAgentConfPath is the runtime kea-ctrl-agent config.
	CtrlAgentConfPath = RunDir + "/kea-ctrl-agent.conf"
	// CtrlSocketPath is the unix control socket between ctrl-agent and dhcp4.
	CtrlSocketPath = RunDir + "/kea4-ctrl-socket"
	// InitScriptPath is where the initContainer entrypoint is projected from the
	// ConfigMap.
	InitScriptPath = ConfigDir + "/init.sh"

	// DHCP4Bin is the kea-dhcp4 server binary.
	DHCP4Bin = "/usr/sbin/kea-dhcp4"
	// CtrlAgentBin is the kea-ctrl-agent binary.
	CtrlAgentBin = "/usr/sbin/kea-ctrl-agent"

	// HooksDir holds the Kea hook libraries.
	HooksDir = "/usr/lib64/kea/hooks"
	// HALibrary is the High Availability hook.
	HALibrary = HooksDir + "/libdhcp_ha.so"
	// LeaseCmdsLibrary is the lease commands hook (required by HA lease sync).
	LeaseCmdsLibrary = HooksDir + "/libdhcp_lease_cmds.so"

	// CtrlAgentPort is the REST control channel port.
	CtrlAgentPort = 8000
	// DHCP4Port is the DHCPv4 server port.
	DHCP4Port = 67

	// DefaultImage is the kea workload image built by this repo.
	DefaultImage = "git.unkin.net/unkin/kea:latest"

	// ClientArchOption is the DHCP option code carrying PXE client arch.
	ClientArchOption = 93

	// WaitAttempts caps the initContainer's bounded wait for the HA peer DNS to
	// resolve (i.e. for the rendered config to pass "kea-dhcp4 -t").
	WaitAttempts = 60
	// WaitSleepSeconds is the delay between bounded-wait attempts.
	WaitSleepSeconds = 2
)

// Environment variable names the operator sets on the initContainer. The
// embedded init.sh reads only these; keeping the names here means the script
// stays free of any Go string interpolation.
const (
	// EnvPodName carries the pod name (downward API metadata.name); its ordinal
	// suffix selects this pod's HA peer name.
	EnvPodName = "POD_NAME"
	// EnvRunDir is the shared run/socket dir path.
	EnvRunDir = "RUN_DIR"
	// EnvConfigDir is the read-only projected config dir path.
	EnvConfigDir = "CONFIG_DIR"
	// EnvThisServerPlaceholder is the token replaced with this pod's HA peer name.
	EnvThisServerPlaceholder = "THIS_SERVER_PLACEHOLDER"
	// EnvDHCP4Bin is the kea-dhcp4 binary path (used for the -t config check).
	EnvDHCP4Bin = "DHCP4_BIN"
	// EnvDHCP4Conf is the finalized kea-dhcp4 config path in the shared run dir.
	EnvDHCP4Conf = "DHCP4_CONF"
	// EnvCtrlAgentConf is the staged kea-ctrl-agent config path in the run dir.
	EnvCtrlAgentConf = "CTRL_AGENT_CONF"
	// EnvWaitAttempts is the bounded-wait attempt cap.
	EnvWaitAttempts = "WAIT_ATTEMPTS"
	// EnvWaitSleep is the per-attempt sleep in seconds.
	EnvWaitSleep = "WAIT_SLEEP"
)