#!/bin/bash
# Usage: redmine-fetch <ticket-nr>
# stdout: Issue-JSON + alle Wiki-JSONs deren Titel mit #<ticket-nr> beginnt
#         (Newline-getrennt; Wikis = nichts wenn keine Treffer)
# stderr: Hinweis auf Bilder-Speicherort (wenn Bilder vorhanden)
# Side effect: Bilder von Issue + Wikis nach /tmp/redmine-{nr}/

TICKET_NR="$1"
URL="https://servicecenter.mitho-media.de"
API_KEY=$(cat /home/arbeit/projects/project-starter/.redmine_api_key)
ATTACH_DIR="/tmp/redmine-$TICKET_NR"

ISSUE_JSON=$(curl -s -H "X-Redmine-API-Key: $API_KEY" \
  "$URL/issues/$TICKET_NR.json?include=journals,attachments,relations")

PROJECT_ID=$(echo "$ISSUE_JSON" | python3 -c "import sys,json;print(json.load(sys.stdin)['issue']['project']['id'])")
PROJECT_IDENTIFIER=$(curl -s -H "X-Redmine-API-Key: $API_KEY" \
  "$URL/projects/$PROJECT_ID.json" \
  | python3 -c "import sys,json;print(json.load(sys.stdin)['project']['identifier'])")

WIKI_INDEX=$(curl -sf -H "X-Redmine-API-Key: $API_KEY" \
  "$URL/projects/$PROJECT_IDENTIFIER/wiki/index.json" || echo "")

WIKI_TITLES=$(echo "$WIKI_INDEX" | TICKET_NR="$TICKET_NR" python3 -c "
import sys, json, os
try:
    pages = json.load(sys.stdin).get('wiki_pages', [])
except Exception:
    sys.exit(0)
prefix = '#' + os.environ['TICKET_NR']
for p in pages:
    t = p.get('title', '')
    if t == prefix or t.startswith(prefix + '_'):
        print(t)
")

rm -rf "$ATTACH_DIR"
mkdir -p "$ATTACH_DIR"

download_images() {
  local json="$1"
  [ -z "$json" ] && return
  echo "$json" | python3 -c "
import sys, json
d = json.load(sys.stdin)
container = d.get('issue', d.get('wiki_page', {}))
for a in container.get('attachments', []):
    if a.get('content_type', '').startswith('image/'):
        print(a['content_url'] + '|' + a['filename'])
" | while IFS='|' read -r url filename; do
    [ -n "$url" ] && curl -sf -H "X-Redmine-API-Key: $API_KEY" -o "$ATTACH_DIR/$filename" "$url"
  done
}

download_images "$ISSUE_JSON"

WIKI_OUTPUT=""
while IFS= read -r title; do
  [ -z "$title" ] && continue
  encoded=$(python3 -c "import urllib.parse,sys;print(urllib.parse.quote(sys.argv[1], safe=''))" "$title")
  wiki=$(curl -sf -H "X-Redmine-API-Key: $API_KEY" \
    "$URL/projects/$PROJECT_IDENTIFIER/wiki/$encoded.json?include=attachments" || echo "")
  if [ -n "$wiki" ]; then
    download_images "$wiki"
    WIKI_OUTPUT="${WIKI_OUTPUT}${wiki}"$'\n'
  fi
done <<< "$WIKI_TITLES"

COUNT=$(find "$ATTACH_DIR" -maxdepth 1 -type f 2>/dev/null | wc -l)
[ "$COUNT" -gt 0 ] && echo "$COUNT Bild(er) gespeichert in $ATTACH_DIR" >&2

echo "$ISSUE_JSON"
printf '%s' "$WIKI_OUTPUT"