tests: Add tests to improve docx module coverage

use crate::analyzer::readability::flesch_kincaid_grade_level;

use crate::io::docx::extract_text_from_path;

use crate::prelude::{write, PathBuf};

use crate::prelude::{write, File, PathBuf, Write};

use crate::test_utils::{cleanup, fixture_path, temp_file};

use zip::write::SimpleFileOptions;

use zip::{CompressionMethod, ZipWriter};

fn write_docx(document_xml: &str) -> PathBuf {

    let path = temp_file();

    let file = File::create(&path).unwrap();

    let mut archive = ZipWriter::new(file);

    let options = SimpleFileOptions::default().compression_method(CompressionMethod::Stored);

    let content_types = r#"<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">

    <Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>

    <Default Extension="xml" ContentType="application/xml"/>

    <Override PartName="/word/document.xml" ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml"/>

</Types>"#;

    let root_rels = r#"<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">

    <Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="word/document.xml"/>

</Relationships>"#;

    let document_rels = r#"<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">

    <Relationship Id="rIdHyper" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink" Target="https://example.org" TargetMode="External"/>

</Relationships>"#;

    archive.start_file("[Content_Types].xml", options).unwrap();

    archive.write_all(content_types.as_bytes()).unwrap();

    archive.start_file("_rels/.rels", options).unwrap();

    archive.write_all(root_rels.as_bytes()).unwrap();

    archive.start_file("word/document.xml", options).unwrap();

    archive.write_all(document_xml.as_bytes()).unwrap();

    archive.start_file("word/_rels/document.xml.rels", options).unwrap();

    archive.write_all(document_rels.as_bytes()).unwrap();

    archive.finish().unwrap();

    path

}

#[test]

fn test_extract_sample_fixture() {

    let result = extract_text_from_path(nonexistent);

    assert!(result.is_err(), "Should accept &str and return error for missing file");

}

#[test]

fn test_extract_generated_docx_paragraph_children() {

    let document_xml = r#"<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<w:document xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main"

                        xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">

    <w:body>

        <w:p>

            <w:r><w:t>Alpha</w:t></w:r>

            <w:r><w:tab/></w:r>

            <w:r><w:t>Beta</w:t></w:r>

            <w:r><w:br/></w:r>

            <w:r><w:instrText>Instr</w:instrText></w:r>

            <w:hyperlink r:id="rIdHyper"><w:r><w:t>Link</w:t></w:r></w:hyperlink>

            <w:ins w:id="1"><w:r><w:t>InsertText</w:t></w:r></w:ins>

            <w:del w:id="2"><w:r><w:t>DeleteText</w:t></w:r></w:del>

        </w:p>

        <w:p>

            <w:r><w:t>Tail</w:t></w:r>

        </w:p>

    </w:body>

</w:document>"#;

    let path = write_docx(document_xml);

    let result = extract_text_from_path(&path);

    assert!(result.is_ok(), "Generated DOCX should parse");

    let text = result.unwrap();

    assert!(text.contains("Alpha\tBeta\nInstrLinkInsertTextDeleteText"));

    assert!(text.contains("Tail"));

    cleanup(&path);

}

#[test]

fn test_extract_generated_docx_table_children() {

    let document_xml = r#"<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<w:document xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main">

    <w:body>

        <w:tbl>

            <w:tr>

                <w:tc>

                    <w:p><w:r><w:t>CellOne</w:t></w:r></w:p>

                    <w:tbl>

                        <w:tr>

                            <w:tc>

                                <w:p><w:r><w:t>NestedCell</w:t></w:r></w:p>

                            </w:tc>

                        </w:tr>

                    </w:tbl>

                </w:tc>

            </w:tr>

        </w:tbl>

    </w:body>

</w:document>"#;

    let path = write_docx(document_xml);

    let result = extract_text_from_path(&path);

    assert!(result.is_ok(), "Generated table DOCX should parse");

    let text = result.unwrap();

    assert!(text.contains("CellOne"));

    assert!(text.contains("NestedCell"));

    cleanup(&path);

}