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 TestFileDeleteSuccess(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		assert.Equal(t, http.MethodDelete, r.Method)
		w.WriteHeader(http.StatusOK)
		_, _ = w.Write([]byte(`{"content":null,"commit":{"sha":"cmt1","html_url":"http://example.com/commit/cmt1"}}`))
	}))
	defer srv.Close()

	tool := tools.NewFileDelete(gitea.NewClient(srv.URL, "tok"), allowlist.New([]string{"owner"}))
	out, err := tool.Call(context.Background(), json.RawMessage(`{
		"owner":"owner","name":"repo","path":"src/old.go",
		"branch":"main","message":"remove old.go","sha":"blobsha"
	}`))
	require.NoError(t, err)

	var result map[string]any
	require.NoError(t, json.Unmarshal(out, &result))
	assert.Equal(t, "cmt1", result["commit_sha"])
}

func TestFileDeleteRequiresSha(t *testing.T) {
	tool := tools.NewFileDelete(gitea.NewClient("http://unused", ""), allowlist.New([]string{"owner"}))
	_, err := tool.Call(context.Background(), json.RawMessage(`{
		"owner":"owner","name":"repo","path":"f.go","branch":"main","message":"rm"
	}`))
	require.Error(t, err)
	assert.ErrorIs(t, err, gitea.ErrValidation)
}

func TestFileDeleteAllowlistRejects(t *testing.T) {
	tool := tools.NewFileDelete(gitea.NewClient("http://unused", ""), allowlist.New([]string{"allowed"}))
	_, err := tool.Call(context.Background(), json.RawMessage(`{
		"owner":"evil","name":"repo","path":"f.go","branch":"main","message":"rm","sha":"abc"
	}`))
	require.Error(t, err)
}