package web

import (
	"errors"
	"net/http"
	"net/http/httptest"
	"net/url"
	"os"
	"strings"
	"testing"

	"github.com/gin-gonic/gin"

	"cmautobuy/admin/service"
)

func TestParseInnerCodeIDs_过滤无效并保持首次选择顺序(t *testing.T) {
	got := parseInnerCodeIDs([]string{" 8 ", "bad", "0", "8", "3"})
	if len(got) != 2 || got[0] != 8 || got[1] != 3 {
		t.Fatalf("解析结果不正确: %v", got)
	}
}

func TestInnerCodeRedirect_区分错误反馈并使用默认100条(t *testing.T) {
	gin.SetMode(gin.TestMode)
	recorder := httptest.NewRecorder()
	context, _ := gin.CreateTestContext(recorder)
	form := url.Values{"page_size": {""}}
	context.Request = httptest.NewRequest(http.MethodPost, "/inner-codes/match", strings.NewReader(form.Encode()))
	context.Request.Header.Set("Content-Type", "application/x-www-form-urlencoded")

	(&Handler{}).innerCodeRedirect(context, "2026-08-15", "pending", "ORDER-1", 2,
		innerCodeFeedbackError, "匹配失败：测试错误")
	if context.Writer.Status() != http.StatusSeeOther {
		t.Fatalf("状态码=%d，期望 303", context.Writer.Status())
	}
	location, err := url.Parse(recorder.Header().Get("Location"))
	if err != nil {
		t.Fatal(err)
	}
	query := location.Query()
	if location.Path != "/inner-codes" || query.Get("feedback") != "error" ||
		query.Get("message") != "匹配失败：测试错误" || query.Get("page_size") != "100" ||
		query.Get("date") != "2026-08-15" || query.Get("status") != "pending" ||
		query.Get("q") != "ORDER-1" || query.Get("page") != "2" {
		t.Fatalf("反馈跳转参数不完整: %s", recorder.Header().Get("Location"))
	}
}

func TestInnerCodeMatch_不再按20条提前拒绝只读匹配(t *testing.T) {
	raw, err := os.ReadFile("inner_code.go")
	if err != nil {
		t.Fatal(err)
	}
	source := string(raw)
	for _, forbidden := range []string{"InnerCodeRemoteBatchLimit", "一次最多匹配 20 条"} {
		if strings.Contains(source, forbidden) {
			t.Errorf("只读匹配仍包含旧限制 %q", forbidden)
		}
	}
}

func TestEnsureInnerCodeMatchSession_有效会话不自动登录(t *testing.T) {
	loginCalls := 0
	autoLoggedIn, message := ensureInnerCodeMatchSession(
		func() error { return nil },
		func() (string, bool) { loginCalls++; return "", true },
	)
	if autoLoggedIn || message != "" || loginCalls != 0 {
		t.Fatalf("有效会话不应自动登录: auto=%v message=%q calls=%d", autoLoggedIn, message, loginCalls)
	}
}

func TestEnsureInnerCodeMatchSession_过期后自动登录成功(t *testing.T) {
	loginCalls := 0
	autoLoggedIn, message := ensureInnerCodeMatchSession(
		func() error { return service.ErrSybLoginRequired },
		func() (string, bool) { loginCalls++; return "", true },
	)
	if !autoLoggedIn || message != "" || loginCalls != 1 {
		t.Fatalf("过期会话应自动登录一次: auto=%v message=%q calls=%d", autoLoggedIn, message, loginCalls)
	}
}

func TestEnsureInnerCodeMatchSession_自动登录失败给出恢复路径(t *testing.T) {
	autoLoggedIn, message := ensureInnerCodeMatchSession(
		func() error { return service.ErrSybLoginRequired },
		func() (string, bool) { return "验证码识别服务不可达", false },
	)
	if autoLoggedIn || !strings.Contains(message, "验证码识别服务不可达") ||
		!strings.Contains(message, "顺运宝数据") || !strings.Contains(message, "没有执行匹配") {
		t.Fatalf("自动登录失败提示不完整: auto=%v message=%q", autoLoggedIn, message)
	}
}

func TestEnsureInnerCodeMatchSession_未配置OCR给出明确原因(t *testing.T) {
	_, message := ensureInnerCodeMatchSession(
		func() error { return service.ErrSybLoginRequired },
		func() (string, bool) { return "", false },
	)
	if !strings.Contains(message, "未配置验证码识别服务") {
		t.Fatalf("未配置 OCR 的提示不明确: %q", message)
	}
}

func TestEnsureInnerCodeMatchSession_普通错误不尝试登录(t *testing.T) {
	loginCalls := 0
	autoLoggedIn, message := ensureInnerCodeMatchSession(
		func() error { return errors.New("database unavailable") },
		func() (string, bool) { loginCalls++; return "", true },
	)
	if autoLoggedIn || message != "校验顺运宝会话失败，没有执行匹配。" || loginCalls != 0 {
		t.Fatalf("普通错误不应自动登录: auto=%v message=%q calls=%d", autoLoggedIn, message, loginCalls)
	}
}