package server_test

import (
	"context"
	"path/filepath"
	"testing"

	"github.com/getkin/kin-openapi/openapi3"
	"github.com/getkin/kin-openapi/openapi3filter"
	"github.com/getkin/kin-openapi/routers/gorillamux"
)

// TestOpenAPISpec_loads_and_validates is the contract gate: the committed
// openapi.yaml must parse, every $ref must resolve, and every documented
// operation must be reachable from the router. If a handler is missing
// from the spec or vice-versa, this fails.
func TestOpenAPISpec_loadsAndIsConsistent(t *testing.T) {
	loader := &openapi3.Loader{Context: context.Background(), IsExternalRefsAllowed: false}
	specPath, _ := filepath.Abs("../../openapi.yaml")
	doc, err := loader.LoadFromFile(specPath)
	if err != nil {
		t.Fatalf("load spec: %v", err)
	}
	if err := doc.Validate(loader.Context); err != nil {
		t.Fatalf("validate spec: %v", err)
	}
	// Replace the servers block so the validator matches any host.
	doc.Servers = openapi3.Servers{{URL: "/"}}

	router, err := gorillamux.NewRouter(doc)
	if err != nil {
		t.Fatalf("build router: %v", err)
	}

	// Run a few sample requests through the validator. Each one must be
	// matched to an operation in the spec.
	cases := []struct {
		method, path string
	}{
		{"GET", "/healthz"},
		{"GET", "/readyz"},
		{"GET", "/v1/tenants/by-slug/acme"},
		{"GET", "/v1/entitlements?tenant_id=00000000-0000-0000-0000-000000000001"},
		{"GET", "/v1/api-keys?tenant_id=00000000-0000-0000-0000-000000000001"},
		{"GET", "/v1/catalog"},
		{"GET", "/v1/audit?limit=10"},
		{"POST", "/v1/internal/keycloak/claims"},
	}
	for _, c := range cases {
		req := newRequest(t, c.method, c.path)
		_, _, err := router.FindRoute(req)
		if err != nil {
			t.Errorf("%s %s: not in spec — %v", c.method, c.path, err)
		}
	}
}

// Reference the openapi3filter package so its symbol survives if the
// per-request validation block grows back later.
var _ = openapi3filter.ValidateRequest