#!/usr/bin/env bash

#

# Build the v2 documentation site for this checkout into `site/`: the English

# site at the root, then one translated site per language in

# i18n/languages.yml under `site/<code>/`.

#

# Zensical runs no MkDocs plugins or hooks, so the English build is three

# steps: materialise the API reference pages and the concrete config, build

# the site strictly (plus the order-independence and cross-reference checks

# Zensical doesn't do itself), then generate llms.txt and the per-page

# markdown renditions. A language site is lighter: the translation tool stages

# a docs tree (English pages overlaid with that language's translations),

# build_config.py writes its config, and Zensical builds it (non-strict: a

# dead link or anchor in a translation is a warning, counted at the end)

# straight into site/<code>/ — no API reference (it links the English one),

# so no render-order or cross-reference checks. This script is the single

# owner of that recipe, dependency sync included — CI (shared.yml,

# docs-preview.yml) and scripts/build-docs.sh all call it. The toolchain

# detection in docs-preview.yml and build-docs.sh keys on this file's path and

# expects the site under site/.

#

# Usage:

# scripts/docs/build.sh (DOCS_LANGUAGES=en-only skips the language sites)

#

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# Snippet includes (`--8<--`) resolve against the working directory, which

# must therefore be the repo root.

cd "$SCRIPT_DIR/../.."

uv sync --frozen --group docs

# Zensical's incremental cache is unsound: a warm rebuild where only some

# pages re-render silently drops cross-references to cache-hit pages, and

# HTML for since-deleted pages lingers in site/. Build cold so the output

# (and the checks below) are deterministic. Staged language trees likewise.

rm -rf .cache site .build/i18n

uv run --frozen --no-sync python scripts/docs/build_config.py

uv run --frozen --no-sync zensical build -f mkdocs.gen.yml --strict

# The build above renders pages in one arbitrary (filesystem-dependent)

# order; prove the API reference renders in hostile orders too — see the

# check's docstring for the failure mode this guards.

uv run --frozen --no-sync python scripts/docs/check_render_order.py

# Zensical stays green even under --strict when a cross-reference fails to

# resolve (rendered as literal bracket text) or an objects.inv inventory

# fails to download (every link through it silently degrades to plain text);

# MkDocs strict mode aborted on both. Validate the built site instead.

uv run --frozen --no-sync python scripts/docs/check_crossrefs.py --site-dir site

uv run --frozen --no-sync python scripts/docs/llms_txt.py --site-dir site

# Language sites build after English: `zensical build` clears its site_dir, so

# the English build (site_dir site/) would wipe every site/<code>/, while a

# language build (site_dir site/<code>/) leaves its parent alone. All the

# language trees are staged in one pass, which reads the English pages once.

languages=""

if [[ "${DOCS_LANGUAGES:-}" != "en-only" ]]; then

languages="$(PYTHONPATH=scripts/docs uv run --frozen --no-sync python -c \

'import build_config; print(*(language.code for language in build_config.load_registry().languages))')"

uv run --frozen --no-sync python scripts/docs/translations.py stage

fi

for lang in $languages; do

echo "=== Building language site: ${lang} ==="

uv run --frozen --no-sync python scripts/docs/build_config.py --lang "$lang"

rm -rf .cache

log=".build/i18n/${lang}/build.log"

uv run --frozen --no-sync zensical build -f "mkdocs.${lang}.gen.yml" 2>&1 | tee "$log"

# Zensical reports each dead link/anchor as a "Warning:" diagnostic on stderr.

echo "${lang}: $(grep -c 'Warning:' "$log" || true) warnings"

done