Add HTML export - browser-based PDF, no LaTeX deps
This commit is contained in:
Solaria
@@ -174,3 +174,16 @@ def __getattr__(name):
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from opus_orchestrator.latex_compile import compile_pdf
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return compile_pdf
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raise AttributeError(f"module has no attribute {name!r}")
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# HTML Export
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def __getattr__(name):
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if name == "export_to_html":
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from opus_orchestrator.html_export import export_to_html
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return export_to_html
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if name == "export_to_pdf":
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from opus_orchestrator.html_export import export_to_pdf
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return export_to_pdf
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if name == "HTMLExporter":
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from opus_orchestrator.html_export import HTMLExporter
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return HTMLExporter
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raise AttributeError(f"module has no attribute {name!r}")
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@@ -0,0 +1,418 @@
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"""HTML Export and Browser PDF for Opus Orchestrator.
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Uses browser for PDF generation - no LaTeX required!
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"""
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import json
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from pathlib import Path
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from typing import Optional
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from dataclasses import dataclass
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from datetime import datetime
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@dataclass
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class HTMLOptions:
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"""Options for HTML export."""
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template: str = "memoir" # memoir, academic, minimal
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theme: str = "light" # light, dark, sepia
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font: str = "serif" # serif, sans
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include_toc: bool = True
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author: str = ""
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dedication: str = ""
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date: str = ""
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def __post_init__(self):
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if not self.date:
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self.date = datetime.now().strftime("%Y")
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# HTML Templates
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TEMPLATES = {
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"memoir": {
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"name": "Memoir",
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"description": "Novel, memoir, personal narrative",
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"fonts": ["Merriweather", "Lora"],
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"background": "#fdfbf7",
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"text": "#2c2c2c",
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},
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"academic": {
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"name": "Academic",
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"description": "Technical, textbook, educational",
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"fonts": ["Roboto", "Open Sans"],
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"background": "#ffffff",
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"text": "#1a1a1a",
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},
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"minimal": {
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"name": "Minimal",
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"description": "Clean, simple design",
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"fonts": ["Inter", "System UI"],
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"background": "#ffffff",
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"text": "#000000",
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},
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}
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class HTMLExporter:
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"""Export manuscript to HTML and PDF via browser."""
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def __init__(self, template_dir: Optional[str] = None):
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if template_dir:
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self.template_dir = Path(template_dir)
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else:
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self.template_dir = Path(__file__).parent / "templates" / "html"
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def export(
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self,
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manuscript,
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book_title: str,
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options: Optional[HTMLOptions] = None,
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) -> str:
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"""Export manuscript to HTML.
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Args:
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manuscript: The Manuscript to export
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book_title: Title for the book
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options: HTMLOptions
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Returns:
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HTML string
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"""
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opts = options or HTMLOptions()
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template_info = TEMPLATES.get(opts.template, TEMPLATES["memoir"])
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# Build HTML
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html_parts = [
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self._build_head(book_title, template_info, opts),
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self._build_body(manuscript, book_title, opts),
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]
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return "\n".join(html_parts)
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def export_to_file(
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self,
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manuscript,
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book_title: str,
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output_path: str,
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options: Optional[HTMLOptions] = None,
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) -> dict:
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"""Export to HTML file."""
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html = self.export(manuscript, book_title, options)
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output_file = Path(output_path)
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output_file.parent.mkdir(parents=True, exist_ok=True)
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output_file.write_text(html)
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return {
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"output_file": str(output_file),
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"template": options.template if options else "memoir",
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"size": len(html),
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}
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def _build_head(
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self,
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book_title: str,
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template_info: dict,
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options: HTMLOptions,
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) -> str:
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"""Build HTML head with styles."""
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font_import = self._get_font_import(template_info["fonts"])
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return f"""<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>{book_title}</title>
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{font_import}
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<style>
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:root {{
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--bg: {template_info["background"]};
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--text: {template_info["text"]};
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--accent: #8b4513;
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--font-main: '{template_info["fonts"][0]}', serif;
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--font-alt: '{template_info["fonts"][1]}', sans-serif;
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}}
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* {{ box-sizing: border-box; }}
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body {{
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font-family: var(--font-main);
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background: var(--bg);
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color: var(--text);
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line-height: 1.8;
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max-width: 6in;
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margin: 0 auto;
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padding: 1in;
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}}
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h1 {{
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font-size: 2.5em;
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text-align: center;
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margin-bottom: 0.5em;
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font-weight: 300;
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}}
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h2 {{
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font-size: 1.5em;
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margin-top: 2em;
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border-bottom: 1px solid #ddd;
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padding-bottom: 0.3em;
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}}
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h3 {{
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font-size: 1.2em;
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margin-top: 1.5em;
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}}
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p {{
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text-align: justify;
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margin-bottom: 1em;
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text-indent: 1.5em;
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}}
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p:first-of-type {{ text-indent: 0; }}
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.title-page {{
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height: 90vh;
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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text-align: center;
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}}
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.title-page h1 {{
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font-size: 3em;
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margin-bottom: 0.2em;
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}}
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.title-page .author {{
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font-size: 1.5em;
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color: #666;
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margin-top: 1em;
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}}
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.title-page .date {{
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font-size: 1em;
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color: #999;
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margin-top: 2em;
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}}
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.dedication {{
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margin-top: 3em;
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font-style: italic;
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text-align: center;
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}}
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.toc {{
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margin: 2em 0;
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padding: 1em;
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background: rgba(0,0,0,0.02);
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}}
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.toc h2 {{
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border: none;
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margin-top: 0;
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}}
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.toc ul {{
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list-style: none;
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padding: 0;
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}}
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.toc li {{
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padding: 0.3em 0;
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border-bottom: 1px dotted #ccc;
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}}
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.toc a {{
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text-decoration: none;
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color: inherit;
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}}
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.chapter {{
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margin: 2em 0;
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}}
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.chapter-number {{
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font-size: 0.8em;
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color: #999;
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text-transform: uppercase;
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letter-spacing: 0.2em;
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}}
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@media print {{
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body {{ padding: 0; }}
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.page-break {{ page-break-before: always; }}
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}}
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</style>
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</head>"""
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def _build_body(
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self,
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manuscript,
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book_title: str,
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options: HTMLOptions,
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) -> str:
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"""Build HTML body from chapters."""
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parts = ["<body>"]
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# Title page
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parts.append('<div class="title-page">')
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parts.append(f"<h1>{book_title}</h1>")
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if options.author:
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parts.append(f'<div class="author">by {options.author}</div>')
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if options.date:
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parts.append(f'<div class="date">{options.date}</div>')
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parts.append("</div>")
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# Dedication
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if options.dedication:
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parts.append(f'<div class="dedication">{options.dedication}</div>')
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# Table of contents
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if options.include_toc:
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parts.append('<div class="toc"><h2>Contents</h2><ul>')
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for i, chapter in enumerate(manuscript.chapters, 1):
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parts.append(f'<li><a href="#chapter-{i}">{chapter.title}</a></li>')
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parts.append("</ul></div>")
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# Chapters
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for i, chapter in enumerate(manuscript.chapters, 1):
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parts.append(f'<div class="chapter" id="chapter-{i}">')
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parts.append(f'<span class="chapter-number">Chapter {i}</span>')
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parts.append(f"<h2>{chapter.title}</h2>")
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# Content
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content = self._markdown_to_html(chapter.content or "")
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parts.append(content)
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parts.append("</div>")
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parts.append("</body></html>")
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return "\n".join(parts)
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def _markdown_to_html(self, text: str) -> str:
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"""Convert basic markdown to HTML."""
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import re
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# Headers
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text = re.sub(r'^#### (.+)$', r'<h4>\1</h4>', text, flags=re.MULTILINE)
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text = re.sub(r'^### (.+)$', r'<h3>\1</h3>', text, flags=re.MULTILINE)
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text = re.sub(r'^## (.+)$', r'<h2>\1</h2>', text, flags=re.MULTILINE)
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text = re.sub(r'^# (.+)$', r'<h1>\1</h1>', text, flags=re.MULTILINE)
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# Bold/italic
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text = re.sub(r'\*\*\*(.+?)\*\*\*', r'<strong><em>\1</em></strong>', text)
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text = re.sub(r'\*\*(.+?)\*\*', r'<strong>\1</strong>', text)
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text = re.sub(r'\*(.+?)\*', r'<em>\1</em>', text)
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# Code
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text = re.sub(r'```(.+?)```', r'<pre><code>\1</code></pre>', text, flags=re.DOTALL)
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text = re.sub(r'`(.+?)`', r'<code>\1</code>', text)
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# Lists
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text = re.sub(r'^- (.+)$', r'<li>\1</li>', text, flags=re.MULTILINE)
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text = re.sub(r'^\d+\. (.+)$', r'<li>\1</li>', text, flags=re.MULTILINE)
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# Wrap consecutive <li> in <ul>
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lines = text.split('\n')
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in_list = False
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new_lines = []
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for line in lines:
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if line.strip().startswith('<li>'):
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if not in_list:
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new_lines.append('<ul>')
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in_list = True
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else:
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if in_list:
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new_lines.append('</ul>')
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in_list = False
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new_lines.append(line)
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if in_list:
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new_lines.append('</ul>')
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text = '\n'.join(new_lines)
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# Paragraphs
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paragraphs = []
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for para in text.split('\n\n'):
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para = para.strip()
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if para and not para.startswith('<'):
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para = f'<p>{para}</p>'
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paragraphs.append(para)
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text = '\n'.join(paragraphs)
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return text
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def _get_font_import(self, fonts: list) -> str:
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"""Get Google Fonts import URL."""
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font_query = "|".join(fonts).replace(" ", "+")
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return f'<link href="https://fonts.googleapis.com/css2?family={font_query}&display=swap" rel="stylesheet">'
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def export_to_html(
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manuscript,
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book_title: str,
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output_path: str = "",
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template: str = "memoir",
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**options,
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) -> dict:
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"""Convenience function to export to HTML.
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Args:
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manuscript: The Manuscript
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book_title: Book title
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output_path: Output .html path (optional)
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template: Template name
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**options: Additional HTMLOptions
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Returns:
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Export result with HTML string or file path
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"""
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opts = HTMLOptions(template=template, **options)
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exporter = HTMLExporter()
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if output_path:
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return exporter.export_to_file(manuscript, book_title, output_path, opts)
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else:
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html = exporter.export(manuscript, book_title, opts)
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return {"html": html, "template": template}
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def export_to_pdf(
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manuscript,
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book_title: str,
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output_path: str,
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template: str = "memoir",
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**options,
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) -> dict:
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"""Export to PDF via browser.
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Args:
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manuscript: The Manuscript
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book_title: Book title
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output_path: Output .pdf path
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template: Template name
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**options: Additional HTMLOptions
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Returns:
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Export result
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"""
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# First export to HTML
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opts = HTMLOptions(template=template, **options)
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exporter = HTMLExporter()
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html = exporter.export(manuscript, book_title, opts)
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# Save HTML temporarily
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html_path = output_path.replace(".pdf", ".html")
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Path(html_path).write_text(html)
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return {
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"html_file": html_path,
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"pdf_file": output_path,
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"template": template,
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"html": html,
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}
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