package catalogue

import (
	"strings"
	"testing"
)

// A served verb is written as a bare name or in full, and both read into one type (novox/hq ADR 0132).
func TestAServedVerbIsANameOrADefinition(t *testing.T) {
	m, err := ParseManifest([]byte(`{"module":"till","version":"1","tools":["price","refund"],` +
		`"seats":[{"name":"shop-till","serves":["price",{"name":"refund","description":"give it back",` +
		`"input":{"type":"object","properties":{"order":{"type":"string"}}}}]}],` +
		`"claims":[{"name":"shop-till","scope":"mesh"}]}`))
	if err != nil {
		t.Fatal(err)
	}
	got := m.DefinesSeats[0].Serves
	if len(got) != 2 || got[0].Name != "price" || got[1].Name != "refund" || got[1].Description != "give it back" {
		t.Fatalf("verbs not read: %+v", got)
	}
	if got[1].Input["type"] != "object" {
		t.Fatalf("the schema did not travel with the verb: %+v", got[1].Input)
	}
}

// A misspelt key inside a verb's definition is refused, like one anywhere else in the manifest.
func TestAVerbWithAnUnknownKeyIsRefused(t *testing.T) {
	_, err := ParseManifest([]byte(`{"module":"till","version":"1",` +
		`"seats":[{"name":"shop-till","serves":[{"name":"price","descripton":"typo"}]}]}`))
	if err == nil || !strings.Contains(err.Error(), "descripton") {
		t.Fatalf("a verb with a misspelt key was accepted: %v", err)
	}
}

// Holding a mesh seat that serves verbs requires serving them, and the refusal names the verbs.
func TestHoldingAMeshSeatRequiresServingItsVerbs(t *testing.T) {
	was := Seats()
	t.Cleanup(func() { UseSeats(was) })
	UseSeats([]Seat{{Name: "mesh-controller", Scope: ScopeMesh, Decision: "test",
		Serves: []Verb{{Name: "status"}, {Name: "push"}}}})
	seat, _ := SeatNamed("mesh-controller")

	partial := Manifest{Module: "a-controller", Tools: []string{"status"},
		Claims: []Claim{{Name: "mesh-controller", Scope: ScopeMesh}}}
	err := CanHold(partial, seat)
	if err == nil || !strings.Contains(err.Error(), "does not serve push") {
		t.Fatalf("a holder missing a verb was not refused by name: %v", err)
	}
	whole := Manifest{Module: "a-controller", Tools: []string{"status", "push"},
		Claims: []Claim{{Name: "mesh-controller", Scope: ScopeMesh}}}
	if err := CanHold(whole, seat); err != nil {
		t.Fatalf("a holder serving every verb was refused: %v", err)
	}
}

// The mesh's own verbs are declared in full: an agent cannot call a name without a schema.
func TestEveryControllerVerbIsDescribedWithASchema(t *testing.T) {
	seen := map[string]bool{}
	for _, v := range ControllerVerbs {
		if v.Description == "" || v.Input == nil || v.Input["type"] != "object" {
			t.Errorf("%s: no description or no object schema", v.Name)
		}
		if seen[v.Name] {
			t.Errorf("%s declared twice", v.Name)
		}
		seen[v.Name] = true
	}
	seat, _ := SeatNamed(ControllerSeatName)
	if len(seat.Serves) != len(ControllerVerbs) {
		t.Fatalf("the compiled mesh-controller seat serves %d verbs, the table has %d", len(seat.Serves), len(ControllerVerbs))
	}
}