# AAIA feed generator
# Expects pup JSON output holding <tr> tags, outputs xmltodict-compatible JSON
# WARNING: Dates are locale-sensitive; the RSS feed might not generate correctly with another locale.
# Expected variables:
# $lang: Language code, without the country code (en/zh-Hans/zh-Hant).
# $link: Link to the investigation list.
import "./helpers" as helpers;

{
    "rss": {
        "@version": "2.0",
        "channel": {
            "title": "AAIA (\($lang))",
            "description": "Air Accident Investigation Authority reports",
            "link": $link,
            "language": "\($lang)-HK",
            "pubDate": (now | strftime("%a, %d %b %Y %T %z")),
            "docs": "https://www.rssboard.org/rss-specification",
            "ttl": 1440,
            "generator": "ITSB",
            "item": [
                .[].children // []
                # Ignore empty lines
                | select(length)
                | . as $data
                # Grab all the report links, as we will use the last one as the link and put all of them in the description
                | [
                    .[2:][].children
                    | ..
                    | select(.tag? == "a")
                    | .href |= helpers::urlresolve($link)
                ]
                | {
                    "title": ($data[1].text // $data[1].children[0].text),
                    "link": .[-1].href,
                    "description": (
                        [.[] | "<li><a href=\"\(.href)\" target=\"_blank\">\(.text)</a></li>"]
                        | join("")
                        | "<ul>\(.)</ul>"
                    ),
                    "pubDate": (
                        $data[0].text // $data[0].children[0].text
                        | if $lang == "en" then strptime("%d %B %Y") | mktime else helpers::parse_chinese_date end
                        | strftime("%a, %d %b %Y %T %z")
                    )
                }
            ]
        }
    }
}