"""
代码查看对话框
"""
from PyQt5.QtWidgets import (
    QDialog, QVBoxLayout, QHBoxLayout, QLabel,
    QTextEdit, QPushButton, QMessageBox, QFileDialog, QApplication
)
from PyQt5.QtCore import Qt


class CodeViewDialog(QDialog):
    """代码查看对话框"""

    def __init__(self, file_name: str, parent=None):
        """
        初始化对话框

        Args:
            file_name: 文件名
            parent: 父窗口
        """
        super().__init__(parent)
        self.file_name = file_name
        self._setup_ui()

    def _setup_ui(self):
        """设置UI"""
        self.setWindowTitle(f"代码查看 - {self.file_name}")
        self.resize(900, 600)

        layout = QVBoxLayout(self)
        layout.setSpacing(10)

        # 工具栏
        toolbar = QHBoxLayout()

        file_label = QLabel(f"📄 {self.file_name}")
        file_label.setStyleSheet("""
            font-weight: bold;
            color: #60a5fa;
            font-size: 14px;
        """)
        toolbar.addWidget(file_label)

        toolbar.addStretch()

        copy_btn = QPushButton("📋 复制代码")
        copy_btn.clicked.connect(self._copy_code)
        toolbar.addWidget(copy_btn)

        download_btn = QPushButton("⬇ 下载")
        download_btn.clicked.connect(self._download_code)
        toolbar.addWidget(download_btn)

        layout.addLayout(toolbar)

        # 代码编辑器
        self.code_editor = QTextEdit()
        self.code_editor.setReadOnly(True)
        self.code_editor.setStyleSheet("""
            QTextEdit {
                background: #1e293b;
                color: #e0e6ed;
                font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
                font-size: 13px;
                border: 1px solid rgba(59, 130, 246, 0.2);
                border-radius: 8px;
                padding: 15px;
                line-height: 1.5;
            }
        """)

        # 生成示例代码
        sample_code = self._generate_sample_code()
        self.code_editor.setPlainText(sample_code)

        layout.addWidget(self.code_editor)

        # 关闭按钮
        close_btn = QPushButton("关闭")
        close_btn.clicked.connect(self.accept)
        layout.addWidget(close_btn)

    def _generate_sample_code(self) -> str:
        """生成示例代码"""
        if self.file_name.endswith('.java'):
            return self._get_java_sample()
        elif self.file_name.endswith('.py'):
            return self._get_python_sample()
        elif self.file_name.endswith('.xml'):
            return self._get_xml_sample()
        else:
            return f"# {self.file_name}\n\n这是一个示例文件的内容。"

    def _get_java_sample(self) -> str:
        """获取Java示例代码"""
        return '''package com.example.project;

import org.springframework.web.bind.annotation.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;

/**
 * 示例控制器
 * 
 * @author AI Generator
 * @version 1.0
 * @date 2024-01-15
 */
@RestController
@RequestMapping("/api/v1")
public class ExampleController {

    @Autowired
    private ExampleService exampleService;

    /**
     * 获取数据
     * 
     * @param id 数据ID
     * @return 响应结果
     */
    @GetMapping("/data/{id}")
    public ResponseEntity<DataResponse> getData(@PathVariable Long id) {
        try {
            DataResponse data = exampleService.getDataById(id);
            return ResponseEntity.ok(data);
        } catch (Exception e) {
            return ResponseEntity.internalServerError().build();
        }
    }

    /**
     * 创建数据
     * 
     * @param request 请求参数
     * @return 响应结果
     */
    @PostMapping("/data")
    public ResponseEntity<DataResponse> createData(@RequestBody DataRequest request) {
        DataResponse data = exampleService.createData(request);
        return ResponseEntity.ok(data);
    }

    /**
     * 更新数据
     * 
     * @param id 数据ID
     * @param request 请求参数
     * @return 响应结果
     */
    @PutMapping("/data/{id}")
    public ResponseEntity<DataResponse> updateData(
            @PathVariable Long id,
            @RequestBody DataRequest request) {
        DataResponse data = exampleService.updateData(id, request);
        return ResponseEntity.ok(data);
    }

    /**
     * 删除数据
     * 
     * @param id 数据ID
     * @return 响应结果
     */
    @DeleteMapping("/data/{id}")
    public ResponseEntity<Void> deleteData(@PathVariable Long id) {
        exampleService.deleteData(id);
        return ResponseEntity.ok().build();
    }
}'''

    def _get_python_sample(self) -> str:
        """获取Python示例代码"""
        return '''#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
示例模块

Author: AI Generator
Version: 1.0
Date: 2024-01-15
"""

from flask import Flask, jsonify, request
from typing import Dict, Any

app = Flask(__name__)


@app.route('/api/v1/data/<int:data_id>', methods=['GET'])
def get_data(data_id: int) -> Dict[str, Any]:
    """
    获取数据

    Args:
        data_id: 数据ID

    Returns:
        响应数据
    """
    try:
        # 实现逻辑
        return jsonify({
            'id': data_id,
            'status': 'success',
            'data': {}
        })
    except Exception as e:
        return jsonify({
            'status': 'error',
            'message': str(e)
        }), 500


@app.route('/api/v1/data', methods=['POST'])
def create_data() -> Dict[str, Any]:
    """
    创建数据

    Returns:
        响应数据
    """
    data = request.get_json()

    # 实现逻辑
    return jsonify({
        'status': 'success',
        'data': data
    })


@app.route('/api/v1/data/<int:data_id>', methods=['PUT'])
def update_data(data_id: int) -> Dict[str, Any]:
    """
    更新数据

    Args:
        data_id: 数据ID

    Returns:
        响应数据
    """
    data = request.get_json()

    # 实现逻辑
    return jsonify({
        'id': data_id,
        'status': 'success',
        'data': data
    })


@app.route('/api/v1/data/<int:data_id>', methods=['DELETE'])
def delete_data(data_id: int) -> Dict[str, Any]:
    """
    删除数据

    Args:
        data_id: 数据ID

    Returns:
        响应数据
    """
    # 实现逻辑
    return jsonify({
        'status': 'success',
        'message': 'Data deleted'
    })


if __name__ == '__main__':
    app.run(debug=True, host='0.0.0.0', port=5000)'''

    def _get_xml_sample(self) -> str:
        """获取XML示例代码"""
        return '''<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
         http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>lowcode-project</artifactId>
    <version>1.0.0</version>
    <packaging>jar</packaging>

    <name>LowCode Project</name>
    <description>AI Generated Project</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.0</version>
    </parent>

    <properties>
        <java.version>17</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>'''

    def _copy_code(self):
        """复制代码"""
        clipboard = QApplication.clipboard()
        clipboard.setText(self.code_editor.toPlainText())
        QMessageBox.information(self, "复制", "代码已复制到剪贴板")

    def _download_code(self):
        """下载代码"""
        file_path, _ = QFileDialog.getSaveFileName(
            self,
            "保存代码",
            self.file_name
        )

        if file_path:
            try:
                with open(file_path, 'w', encoding='utf-8') as f:
                    f.write(self.code_editor.toPlainText())
                QMessageBox.information(self, "下载", f"代码已保存到:\n{file_path}")
            except Exception as e:
                QMessageBox.critical(self, "错误", f"保存失败:\n{str(e)}")