package provider

import (
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"testing"
)

// A worker-owned checkout lives on another machine and has already pushed the
// commit. The coordinator must publish by verifying the forge, not by running
// git in a directory it does not have.
func TestPushAcceptsACommitTheRemoteAlreadyHolds(t *testing.T) {
	const sha = "1111111111111111111111111111111111111111"
	var asked string
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		asked = r.URL.Path
		json.NewEncoder(w).Encode(map[string]any{"commit": map[string]string{"id": sha}})
	}))
	defer srv.Close()

	// Root is deliberately empty: a push would have nowhere to run.
	p := GiteaPublisher{Gitea: Gitea{BaseURL: srv.URL, Owner: "kami", Repo: "test-e2e"}}
	got, err := p.Push(context.Background(), "origin", "orchestra/T1", sha)
	if err != nil {
		t.Fatalf("push: %v", err)
	}
	if got != sha {
		t.Fatalf("got %q, want %q", got, sha)
	}
	if asked != "/api/v1/repos/kami/test-e2e/branches/orchestra/T1" {
		t.Fatalf("unexpected branch read %q", asked)
	}
}

func TestPushRefusesWhenTheRemoteHoldsAnotherCommitAndThereIsNoCheckout(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		json.NewEncoder(w).Encode(map[string]any{"commit": map[string]string{"id": "2222222222222222222222222222222222222222"}})
	}))
	defer srv.Close()

	p := GiteaPublisher{Gitea: Gitea{BaseURL: srv.URL, Owner: "kami", Repo: "test-e2e"}}
	if _, err := p.Push(context.Background(), "origin", "orchestra/T1", "1111111111111111111111111111111111111111"); err == nil {
		t.Fatal("expected a refusal, got a published commit")
	}
}