package httpapi

import (
	"mime/multipart"
	"net/http/httptest"
	"strings"
	"testing"

	"github.com/vasyansk/imap-copier/internal/config"
)

func TestImportCSVFailsOnBadEncKey(t *testing.T) {
	// EncKey wrong size => crypto.Encrypt errors => handler must NOT return success
	s := &Server{cfg: config.Config{EncKey: make([]byte, 16)}}
	body := &strings.Builder{}
	mw := multipart.NewWriter(body)
	fw, _ := mw.CreateFormFile("file", "a.csv")
	fw.Write([]byte("a@x,p1,a@y,p2\n"))
	mw.Close()
	req := httptest.NewRequest("POST", "/api/tasks/1/import", strings.NewReader(body.String()))
	req.Header.Set("Content-Type", mw.FormDataContentType())
	req.SetPathValue("id", "1")
	rw := httptest.NewRecorder()
	s.handleImportCSV(rw, req)
	if rw.Code == 200 || rw.Code == 201 {
		t.Fatalf("import must fail on bad EncKey, got %d", rw.Code)
	}
}

func TestParseRunAccountIDs(t *testing.T) {
	// empty body => nil (run all)
	req := httptest.NewRequest("POST", "/api/tasks/1/run", strings.NewReader(""))
	ids, err := parseRunAccountIDs(req)
	if err != nil || ids != nil {
		t.Fatalf("empty body must yield nil ids, got %v err=%v", ids, err)
	}

	// explicit selection
	req = httptest.NewRequest("POST", "/api/tasks/1/run", strings.NewReader(`{"account_ids":[3,7]}`))
	ids, err = parseRunAccountIDs(req)
	if err != nil || len(ids) != 2 || ids[0] != 3 || ids[1] != 7 {
		t.Fatalf("must parse account_ids, got %v err=%v", ids, err)
	}

	// malformed JSON => error
	req = httptest.NewRequest("POST", "/api/tasks/1/run", strings.NewReader(`{bad`))
	if _, err := parseRunAccountIDs(req); err == nil {
		t.Fatal("malformed body must error")
	}
}