package tools_test

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

	"gitea.d-ma.be/mathias/gitea-mcp/internal/allowlist"
	"gitea.d-ma.be/mathias/gitea-mcp/internal/gitea"
	"gitea.d-ma.be/mathias/gitea-mcp/internal/tools"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestRepoTreeTool(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		assert.Equal(t, "/api/v1/repos/mathias/infra/git/trees/main", r.URL.Path)
		assert.Equal(t, "1", r.URL.Query().Get("recursive"))
		w.Header().Set("Content-Type", "application/json")
		_, _ = w.Write([]byte(`{"sha":"abc","url":"http://x","tree":[{"path":"README.md","type":"blob","sha":"def","size":13},{"path":"internal","type":"tree","sha":"ghi","size":0}],"truncated":false}`))
	}))
	defer srv.Close()

	tool := tools.NewRepoTree(gitea.NewClient(srv.URL, "tok"), allowlist.New([]string{"mathias"}))
	out, err := tool.Call(context.Background(), json.RawMessage(`{"owner":"mathias","name":"infra","ref":"main"}`))
	require.NoError(t, err)
	assert.Contains(t, string(out), `"sha":"abc"`)
	assert.Contains(t, string(out), `"path":"README.md"`)
}

func TestRepoTreeTool_DefaultsToRecursive(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		assert.Equal(t, "1", r.URL.Query().Get("recursive"))
		w.Header().Set("Content-Type", "application/json")
		_, _ = w.Write([]byte(`{"sha":"abc","tree":[],"truncated":false}`))
	}))
	defer srv.Close()

	tool := tools.NewRepoTree(gitea.NewClient(srv.URL, "tok"), allowlist.New([]string{"mathias"}))
	_, err := tool.Call(context.Background(), json.RawMessage(`{"owner":"mathias","name":"infra","ref":"main"}`))
	require.NoError(t, err)
}

func TestRepoTreeAllowlistRejects(t *testing.T) {
	tool := tools.NewRepoTree(gitea.NewClient("http://unused", ""), allowlist.New([]string{"mathias"}))
	_, err := tool.Call(context.Background(), json.RawMessage(`{"owner":"evil","name":"x","ref":"main"}`))
	require.Error(t, err)
}