package auth

import (
	"context"
	"database/sql"
	"errors"
	"fmt"
	"math/rand"
	"testing"
	"time"

	"perms-system-server/internal/middleware"
	"perms-system-server/internal/model/perm"
	"perms-system-server/internal/model/productmember"
	userModel "perms-system-server/internal/model/user"
	"perms-system-server/internal/response"
	"perms-system-server/internal/svc"
	"perms-system-server/internal/testutil"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

// TC-0049: 正常获取-含productCode
func TestUserInfo_WithProductCode(t *testing.T) {
	svcCtx := svc.NewServiceContext(testutil.GetTestConfig())
	conn := testutil.GetTestSqlConn()
	ctx := context.Background()
	now := time.Now().Unix()

	username := testutil.UniqueId()
	hashed := testutil.HashPassword("pass123")
	res, err := svcCtx.SysUserModel.Insert(ctx, &userModel.SysUser{
		Username:           username,
		Password:           hashed,
		Nickname:           "info_test",
		Avatar:             sql.NullString{String: "https://avatar.test/a.png", Valid: true},
		Email:              username + "@test.com",
		Phone:              "13900000001",
		Remark:             "",
		DeptId:             0,
		IsSuperAdmin:       2,
		MustChangePassword: 2,
		Status:             1,
		CreateTime:         now,
		UpdateTime:         now,
	})
	require.NoError(t, err)
	userId, _ := res.LastInsertId()

	pc := fmt.Sprintf("tp_ui_%d", rand.Intn(100000))
	pmRes, err := svcCtx.SysProductMemberModel.Insert(ctx, &productmember.SysProductMember{
		ProductCode: pc, UserId: userId, MemberType: "DEVELOPER", Status: 1, CreateTime: now, UpdateTime: now,
	})
	require.NoError(t, err)
	pmId, _ := pmRes.LastInsertId()

	permRes, err := svcCtx.SysPermModel.Insert(ctx, &perm.SysPerm{
		ProductCode: pc, Name: "ui_perm", Code: fmt.Sprintf("ui_c_%d", rand.Intn(100000)), Status: 1, CreateTime: now, UpdateTime: now,
	})
	require.NoError(t, err)
	permId, _ := permRes.LastInsertId()

	t.Cleanup(func() {
		testutil.CleanTable(ctx, conn, "`sys_perm`", permId)
		testutil.CleanTable(ctx, conn, "`sys_product_member`", pmId)
		testutil.CleanTable(ctx, conn, "`sys_user`", userId)
	})

	ud := svcCtx.UserDetailsLoader.Load(ctx, userId, pc)
	infoCtx := middleware.WithUserDetails(context.Background(), ud)

	logic := NewUserInfoLogic(infoCtx, svcCtx)
	info, err := logic.UserInfo()
	require.NoError(t, err)
	require.NotNil(t, info)

	assert.Equal(t, userId, info.UserId)
	assert.Equal(t, username, info.Username)
	assert.Equal(t, "info_test", info.Nickname)
	assert.Equal(t, "https://avatar.test/a.png", info.Avatar)
	assert.Equal(t, username+"@test.com", info.Email)
	assert.Equal(t, "DEVELOPER", info.MemberType)
	assert.NotEmpty(t, info.Perms)

	permObj, _ := svcCtx.SysPermModel.FindOne(ctx, permId)
	assert.Contains(t, info.Perms, permObj.Code)
}

// TC-0050: 不含productCode
func TestUserInfo_WithoutProductCode(t *testing.T) {
	svcCtx := svc.NewServiceContext(testutil.GetTestConfig())
	conn := testutil.GetTestSqlConn()
	ctx := context.Background()
	now := time.Now().Unix()

	username := testutil.UniqueId()
	hashed := testutil.HashPassword("pass123")
	res, err := svcCtx.SysUserModel.Insert(ctx, &userModel.SysUser{
		Username:           username,
		Password:           hashed,
		Nickname:           "nopc_test",
		Avatar:             sql.NullString{},
		Email:              username + "@test.com",
		Phone:              "13900000002",
		Remark:             "",
		DeptId:             0,
		IsSuperAdmin:       2,
		MustChangePassword: 2,
		Status:             1,
		CreateTime:         now,
		UpdateTime:         now,
	})
	require.NoError(t, err)
	userId, _ := res.LastInsertId()
	t.Cleanup(func() { testutil.CleanTable(ctx, conn, "`sys_user`", userId) })

	ud := svcCtx.UserDetailsLoader.Load(ctx, userId, "")
	infoCtx := middleware.WithUserDetails(context.Background(), ud)

	logic := NewUserInfoLogic(infoCtx, svcCtx)
	info, err := logic.UserInfo()
	require.NoError(t, err)
	require.NotNil(t, info)

	assert.Equal(t, userId, info.UserId)
	assert.Equal(t, username, info.Username)
	assert.Equal(t, "", info.Avatar)
	assert.Empty(t, info.Perms)
	assert.Empty(t, info.MemberType)
}

// TC-0052: context中无UserDetails（未登录）
func TestUserInfo_UserIdZero(t *testing.T) {
	svcCtx := svc.NewServiceContext(testutil.GetTestConfig())

	logic := NewUserInfoLogic(context.Background(), svcCtx)
	info, err := logic.UserInfo()
	assert.Nil(t, info)

	var codeErr *response.CodeError
	require.True(t, errors.As(err, &codeErr))
	assert.Equal(t, 401, codeErr.Code())
	assert.Equal(t, "未登录", codeErr.Error())
}

// TC-0053: context中无UserDetails（中间件未注入）
func TestUserInfo_UserNotFound(t *testing.T) {
	svcCtx := svc.NewServiceContext(testutil.GetTestConfig())

	logic := NewUserInfoLogic(context.Background(), svcCtx)
	info, err := logic.UserInfo()
	assert.Nil(t, info)

	var codeErr *response.CodeError
	require.True(t, errors.As(err, &codeErr))
	assert.Equal(t, 401, codeErr.Code())
	assert.Equal(t, "未登录", codeErr.Error())
}