package policy

import (
	"net/http"

	"git.maze.io/maze/styx/proxy/match"
)

// Policy contains rules that make up the policy.
//
// Some policy rules contain nested policies.
type Policy struct {
	Rules    []*rawRule     `hcl:"on,block" json:"rules"`
	Permit   *bool          `hcl:"permit" json:"permit"`
	Matchers match.Matchers `json:"matchers"` // Matchers for the policy

}

func (p *Policy) Configure(matchers match.Matchers) (err error) {
	for _, r := range p.Rules {
		if err = r.Configure(matchers); err != nil {
			return
		}
	}
	p.Matchers = matchers
	return
}

func (p *Policy) PermitIntercept(r *http.Request) *bool {
	if p != nil {
		for _, rule := range p.Rules {
			if rule, ok := rule.Rule.(InterceptRule); ok {
				if permit := rule.PermitIntercept(r); permit != nil {
					return permit
				}
			}
		}
	}
	return p.Permit
}

func (p *Policy) PermitRequest(r *http.Request) *bool {
	if p != nil {
		for _, rule := range p.Rules {
			if rule, ok := rule.Rule.(RequestRule); ok {
				if permit := rule.PermitRequest(r); permit != nil {
					return permit
				}
			}
		}
	}
	return p.Permit
}