package router

// Maximum number of URL parameters per route
const maxParams = 20

// Params holds URL parameters with fixed-size arrays to avoid allocations
type Params struct {
	Keys   [maxParams]string
	Values [maxParams]string
	Count  int
}

// Get returns a parameter value by name
func (p *Params) Get(name string) string {
	for i := range p.Count {
		if p.Keys[i] == name {
			return p.Values[i]
		}
	}
	return ""
}

// Reset clears all parameters
func (p *Params) Reset() {
	p.Count = 0
}

// Set adds or updates a parameter
func (p *Params) Set(name, value string) {
	// Try to update existing
	for i := range p.Count {
		if p.Keys[i] == name {
			p.Values[i] = value
			return
		}
	}

	// Add new if space available
	if p.Count < maxParams {
		p.Keys[p.Count] = name
		p.Values[p.Count] = value
		p.Count++
	}
}