"""
Convert 命令端到端测试

测试 yaml2pptx.py convert 命令的完整功能
"""

import pytest
import subprocess
import sys
from pathlib import Path
from pptx import Presentation


class TestConvertCmd:
    """convert 命令测试类"""

    def run_convert(self, *args):
        """辅助函数：运行 convert 命令"""
        cmd = [sys.executable, "-m", "uv", "run", "python", "yaml2pptx.py", "convert"]
        cmd.extend(args)
        result = subprocess.run(
            cmd,
            capture_output=True,
            text=True,
            cwd=Path(__file__).parent.parent.parent
        )
        return result

    def test_basic_conversion(self, sample_yaml, temp_dir):
        """测试基本转换"""
        output = temp_dir / "output.pptx"
        result = self.run_convert(str(sample_yaml), str(output))

        assert result.returncode == 0
        assert output.exists()
        assert output.stat().st_size > 0

    def test_auto_output_filename(self, sample_yaml, temp_dir):
        """测试自动生成输出文件名"""
        # 在 temp_dir 中运行
        result = subprocess.run(
            [sys.executable, "-m", "uv", "run", "python",
             "yaml2pptx.py", "convert", str(sample_yaml)],
            capture_output=True,
            text=True,
            cwd=temp_dir
        )

        assert result.returncode == 0
        # 应该生成与输入同名的 .pptx 文件
        expected_output = temp_dir / "test.pptx"
        assert expected_output.exists()

    def test_conversion_with_template(self, temp_dir, sample_template):
        """测试使用模板转换"""
        yaml_content = f"""
metadata:
  size: "16:9"

slides:
  - template: title-slide
    vars:
      title: "Template Test"
"""
        yaml_path = temp_dir / "test.yaml"
        yaml_path.write_text(yaml_content)

        output = temp_dir / "output.pptx"
        result = self.run_convert(
            str(yaml_path),
            str(output),
            "--template-dir", str(sample_template)
        )

        assert result.returncode == 0
        assert output.exists()

    def test_skip_validation(self, sample_yaml, temp_dir):
        """测试跳过验证"""
        output = temp_dir / "output.pptx"
        result = self.run_convert(
            str(sample_yaml),
            str(output),
            "--skip-validation"
        )

        assert result.returncode == 0
        assert output.exists()

    def test_force_overwrite(self, sample_yaml, temp_dir):
        """测试强制覆盖"""
        output = temp_dir / "output.pptx"

        # 先创建一个存在的文件
        output.write_text("existing")

        # 使用 --force 应该覆盖
        result = self.run_convert(
            str(sample_yaml),
            str(output),
            "--force"
        )

        assert result.returncode == 0
        # 文件应该是有效的 PPTX，不是原来的文本
        assert output.stat().st_size > 1000

    def test_existing_file_without_force(self, sample_yaml, temp_dir):
        """测试文件已存在且不使用 --force"""
        output = temp_dir / "output.pptx"

        # 先创建一个存在的文件
        output.write_text("existing")

        # 不使用 --force 应该失败或提示
        result = self.run_convert(str(sample_yaml), str(output))

        # 程序应该拒绝覆盖
        assert result.returncode != 0 or "已存在" in result.stderr

    def test_invalid_input_file(self, temp_dir):
        """测试无效输入文件"""
        nonexistent = temp_dir / "nonexistent.yaml"
        output = temp_dir / "output.pptx"

        result = self.run_convert(str(nonexistent), str(output))

        assert result.returncode != 0

    def test_conversion_with_all_element_types(self, temp_dir, sample_image):
        """测试转换包含所有元素类型的 YAML"""
        fixtures_yaml = Path(__file__).parent.parent / "fixtures" / "yaml_samples" / "full_features.yaml"
        if not fixtures_yaml.exists():
            pytest.skip("full_features.yaml not found")

        output = temp_dir / "output.pptx"
        result = self.run_convert(str(fixtures_yaml), str(output))

        assert result.returncode == 0
        assert output.exists()

        # 验证生成的 PPTX
        prs = Presentation(str(output))
        assert len(prs.slides) >= 1

    def test_conversion_preserves_chinese_content(self, temp_dir):
        """测试转换保留中文内容"""
        yaml_content = """
metadata:
  size: "16:9"

slides:
  - elements:
      - type: text
        box: [1, 1, 8, 1]
        content: "测试中文内容"
        font:
          size: 24
"""
        yaml_path = temp_dir / "test.yaml"
        yaml_path.write_text(yaml_content, encoding='utf-8')

        output = temp_dir / "output.pptx"
        result = self.run_convert(str(yaml_path), str(output))

        assert result.returncode == 0
        assert output.exists()

        # 验证内容
        prs = Presentation(str(output))
        text_content = prs.slides[0].shapes[0].text_frame.text
        assert "测试中文内容" in text_content

    def test_different_slide_sizes(self, temp_dir):
        """测试不同的幻灯片尺寸"""
        for size in ["16:9", "4:3"]:
            yaml_content = f"""
metadata:
  size: {size}

slides:
  - elements:
      - type: text
        box: [1, 1, 8, 1]
        content: "Size {size}"
        font:
          size: 24
"""
            yaml_path = temp_dir / f"test_{size.replace(':', '')}.yaml"
            yaml_path.write_text(yaml_content)

            output = temp_dir / f"output_{size.replace(':', '')}.pptx"
            result = self.run_convert(str(yaml_path), str(output))

            assert result.returncode == 0, f"Failed for size {size}"
            assert output.exists()

            # 验证尺寸
            prs = Presentation(str(output))
            if size == "16:9":
                assert abs(prs.slide_width.inches - 10.0) < 0.01
                assert abs(prs.slide_height.inches - 5.625) < 0.01
            else:  # 4:3
                assert abs(prs.slide_width.inches - 10.0) < 0.01
                assert abs(prs.slide_height.inches - 7.5) < 0.01