package api

import (
	"net/http/httptest"
	"strings"
	"testing"
)

func TestDecodeDocumentRules(t *testing.T) {
	cases := []struct {
		name     string
		body     string
		wantCode int
		wantText string
	}{
		{"license with scan", `{"kind":"license","title":"Лицензия","preview_id":5,"issued_at":"2025-12-17","published":true}`, 200, ""},
		{"supervisor without files", `{"kind":"supervisor","title":"Минздрав","body":"Телефон: +7","published":true}`, 200, ""},
		{"hidden draft without files", `{"kind":"award","title":"Премия","published":false}`, 200, ""},
		{"unknown kind", `{"kind":"passport","title":"x"}`, 422, "вид документа"},
		{"no title", `{"kind":"license","title":" "}`, 422, "название"},
		{"published license without files", `{"kind":"license","title":"Лицензия","published":true}`, 422, "загрузите скан"},
		{"bad date", `{"kind":"license","title":"Лицензия","issued_at":"17.12.2025"}`, 422, "ГГГГ-ММ-ДД"},
	}
	for _, tc := range cases {
		w := httptest.NewRecorder()
		r := httptest.NewRequest("POST", "/", strings.NewReader(tc.body))
		_, valid := decodeDocument(w, r)
		code := 200
		if !valid {
			code = w.Code
		}
		if code != tc.wantCode || (tc.wantText != "" && !strings.Contains(w.Body.String(), tc.wantText)) {
			t.Errorf("%s: got %d %s, want %d containing %q", tc.name, code, w.Body.String(), tc.wantCode, tc.wantText)
		}
	}
}

func TestDecodeFAQRules(t *testing.T) {
	cases := []struct {
		name     string
		body     string
		wantCode int
		wantText string
	}{
		{"published answer", `{"question":"Где парковка?","answer":"Во дворе\r\nбесплатно","published":true}`, 200, ""},
		{"draft without answer", `{"question":"Черновик","published":false}`, 200, ""},
		{"no question", `{"question":"","answer":"x"}`, 422, "вопрос"},
		{"published without answer", `{"question":"Где парковка?","published":true}`, 422, "напишите ответ"},
	}
	for _, tc := range cases {
		w := httptest.NewRecorder()
		r := httptest.NewRequest("POST", "/", strings.NewReader(tc.body))
		in, valid := decodeFAQ(w, r)
		code := 200
		if !valid {
			code = w.Code
		}
		if code != tc.wantCode || (tc.wantText != "" && !strings.Contains(w.Body.String(), tc.wantText)) {
			t.Errorf("%s: got %d %s, want %d containing %q", tc.name, code, w.Body.String(), tc.wantCode, tc.wantText)
		}
		if valid && strings.Contains(in.Answer, "\r") {
			t.Errorf("%s: answer keeps CR", tc.name)
		}
	}
}