// Copyright 2026 Alibaba Group
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package helpers

import (
	"encoding/json"
	"strings"
	"testing"
)

// TestDevAppAllLeavesStdoutZeroLogBytes 是队列 B119 的 stdout 零日志字节总
// 断言：dev app 全树 32 叶子的 stdout 必须恰为一个 JSON 信封（json解包严格
// 成功），不得混入任何日志/人读杂音字节。读叶子走成功信封、写叶子走
// --dry-run success 信封。任何把日志打到 stdout 的叶子都会在此暴露
// （json.Unmarshal 对前后冗余字节报错）。
func TestDevAppAllLeavesStdoutZeroLogBytes(t *testing.T) {
	for _, entry := range devAppEnvelopeRegressionChecklist() {
		t.Run(entry.path, func(t *testing.T) {
			args := append([]string{}, entry.args...)
			if entry.write {
				args = append(args, "--dry-run")
			}
			out, errBuf, err := runDevAppFamily(t,
				devAppFamilyContentRunner(map[string]any{
					"unifiedAppId": "u-1",
					"name":         "DemoApp",
					"appStatus":    "ENABLED",
				}),
				args...)
			if err != nil {
				t.Fatalf("Execute() error = %v\nstdout:\n%s\nstderr:\n%s", err, out.String(), errBuf.String())
			}
			// 严格：整个 stdout 缓冲必须能被 json 完整消费（无头尾杂音）。
			dec := json.NewDecoder(out)
			var env regressionEnvelope
			if derr := dec.Decode(&env); derr != nil {
				t.Fatalf("stdout is not a single JSON envelope (log bytes leaked?): %v\n%s", derr, out.String())
			}
			if dec.More() {
				t.Fatalf("stdout has trailing content after envelope (log bytes leaked?): %s", out.String())
			}
			if env.OK == nil || !*env.OK {
				t.Fatalf("envelope ok missing/false: %s", out.String())
			}
		})
	}
}

// TestDevAppFieldsProjectionCombinesWithEnvelope 是队列 B120 的 --fields 过滤
// 与信封组合断言：json 模式下 --fields 只投影 data 内业务字段，稳定的
// ok/outcome/data 信封仍必须存在，供 Agent 判断结果状态。
func TestDevAppFieldsProjectionCombinesWithEnvelope(t *testing.T) {
	content := map[string]any{
		"unifiedAppId": "u-1",
		"name":         "DemoApp",
		"appStatus":    "ENABLED",
	}
	// --fields name：只保留业务载荷的 name 字段，其余业务字段被剔除。
	out, errBuf, err := runDevAppFamilyProdAligned(t, devAppFamilyContentRunner(content),
		"dev", "app", "get", "--unified-app-id", "u-1", "--fields", "name")
	if err != nil {
		t.Fatalf("Execute() error = %v\nstdout:\n%s\nstderr:\n%s", err, out.String(), errBuf.String())
	}
	var envelope regressionEnvelope
	if err := json.Unmarshal(out.Bytes(), &envelope); err != nil {
		t.Fatalf("--fields stdout is not JSON: %v\n%s", err, out.String())
	}
	if envelope.OK == nil || !*envelope.OK || envelope.Outcome != "success" {
		t.Fatalf("--fields must preserve the success envelope: %s", out.String())
	}
	payload := envelope.Data
	if payload["name"] != "DemoApp" {
		t.Fatalf("--fields name = %#v, want the projected business payload", payload)
	}
	for _, dropped := range []string{"unifiedAppId", "appStatus"} {
		if _, has := payload[dropped]; has {
			t.Fatalf("--fields name must drop business field %q: %#v", dropped, payload)
		}
	}
}

// TestDevAppFieldsTableViewCombines 是队列 B120 的 --fields 与 table 组合：
// 非 json 下 --fields 先投影 data 再按 format 渲染（§5.2 联动），table 视图
// 只含选定列、不含丢弃字段。
func TestDevAppFieldsTableViewCombines(t *testing.T) {
	content := map[string]any{
		"unifiedAppId": "u-1",
		"name":         "DemoApp",
		"appStatus":    "ENABLED",
	}
	out, errBuf, err := runDevAppFamilyProdAligned(t, devAppFamilyContentRunner(content),
		"dev", "app", "get", "--unified-app-id", "u-1", "--fields", "name", "--format", "table")
	if err != nil {
		t.Fatalf("Execute() error = %v\nstdout:\n%s\nstderr:\n%s", err, out.String(), errBuf.String())
	}
	s := out.String()
	if !strings.Contains(s, "DemoApp") {
		t.Fatalf("table --fields=name missing value:\n%s", s)
	}
	for _, banned := range []string{"ENABLED", "\"appStatus\""} {
		if strings.Contains(s, banned) {
			t.Fatalf("table --fields=name must drop non-selected field %q:\n%s", banned, s)
		}
	}
}