package tools

import (
	"encoding/json"

	"gitea.d-ma.be/mathias/gitea-mcp/internal/registry"
)

// Tool implements registry.Tool.
type Tool = registry.Tool

func textOK(v any) (json.RawMessage, error) {
	return json.Marshal(v)
}

func parseArgs(raw json.RawMessage, dst any) error {
	if len(raw) == 0 {
		return json.Unmarshal([]byte("{}"), dst)
	}
	return json.Unmarshal(raw, dst)
}

// capLimit returns a sane page size: 0 or negative → def, > 50 → 50.
func capLimit(in, def int) int {
	if in <= 0 {
		return def
	}
	if in > 50 {
		return 50
	}
	return in
}