limits

const (
	// DefaultTableMaxRows caps any single materialised *table.Table.
	// See PRISM_TABLE_MAX_ROWS.
	DefaultTableMaxRows = 50_000_000

	// DefaultJoinMaxRows caps the product of the two sides of a hash
	// join (left rows × right rows). See PRISM_JOIN_MAX_ROWS.
	DefaultJoinMaxRows = 5_000_000

	// DefaultRenderMaxMarks caps the number of marks the renderer
	// emits before auto-Sample injection. See PRISM_RENDER_MAX_MARKS.
	DefaultRenderMaxMarks = 100_000

	// DefaultQueryWorkers is the sentinel meaning "use runtime.NumCPU()".
	// Callers (plan.Execute) substitute NumCPU when QueryWorkers()
	// returns 0. See PRISM_QUERY_WORKERS.
	DefaultQueryWorkers = 0

	// DefaultTableCacheSize is the LRU capacity used by plan.NewLRU
	// when the env var is unset or invalid. See PRISM_TABLE_CACHE_SIZE.
	DefaultTableCacheSize = 256

	// DefaultWasmMaxBytes is the gzipped size ceiling enforced on the
	// compiled `bin/prism.wasm` artifact by the P17 size-budget gate.
	// See PRISM_WASM_MAX_BYTES.
	DefaultWasmMaxBytes = 16 * 1024 * 1024

	// SoftWarnWasmMaxBytes triggers a non-failing log message from the
	// size-budget gate when the binary creeps past 75% of the ceiling.
	// Crossing this threshold does not fail the build; only exceeding
	// DefaultWasmMaxBytes (or the env override) does.
	SoftWarnWasmMaxBytes = 12 * 1024 * 1024
)

const (
	EnvTableMaxRows   = "PRISM_TABLE_MAX_ROWS"
	EnvJoinMaxRows    = "PRISM_JOIN_MAX_ROWS"
	EnvRenderMaxMarks = "PRISM_RENDER_MAX_MARKS"
	EnvQueryWorkers   = "PRISM_QUERY_WORKERS"
	EnvTableCacheSize = "PRISM_TABLE_CACHE_SIZE"
	EnvWasmMaxBytes   = "PRISM_WASM_MAX_BYTES"
)