#!/usr/bin/env bash
# sync-wikis-to-github.sh — Export all Gitea wikis to a consolidated GitHub repo
#
# Clones each Gitea wiki, copies pages into project-named subdirectories,
# and pushes to mokoconsulting-tech/wiki on GitHub.
#
# Structure:
#   wiki/
#     README.md
#     moko-platform/
#       Home.md
#       SITE_MONITORING.md
#       ...
#     MokoOnyx/
#       Home.md
#       ...
#
# Usage:
#   sync-wikis-to-github.sh              # sync all
#   sync-wikis-to-github.sh MokoOnyx     # sync one project
#
set -euo pipefail

GITEA_URL="${GITEA_URL:-https://git.mokoconsulting.tech}"
GITHUB_ORG="${GITHUB_ORG:-mokoconsulting-tech}"
GITHUB_WIKI_REPO="${GITHUB_WIKI_REPO:-wiki}"
GH_TOKEN="${GH_TOKEN:-$(cat ~/.github-token 2>/dev/null || echo "")}"
TMPDIR="$(mktemp -d)"
trap 'rm -rf "$TMPDIR"' EXIT

log() { echo "[$(date '+%H:%M:%S')] $*"; }

if [[ -z "$GH_TOKEN" ]]; then
    log "ERROR: GH_TOKEN not set"
    exit 1
fi

# Auto-discover repos with wikis from Gitea API
GITEA_TOKEN="${GITEA_TOKEN:-$(cat ~/.gitea-token 2>/dev/null || echo "")}"
declare -A REPOS=()

if [[ -n "$GITEA_TOKEN" ]]; then
    log "Auto-discovering repos with wikis..."
    for ORG in MokoConsulting ClarksvilleFurs; do
        PAGE=1
        while true; do
            RESPONSE=$(curl -sf -H "Authorization: token ${GITEA_TOKEN}" \
                "${GITEA_URL}/api/v1/orgs/${ORG}/repos?page=${PAGE}&limit=50" 2>/dev/null)
            [[ -z "$RESPONSE" || "$RESPONSE" == "[]" ]] && break

            REPO_LIST=$(echo "$RESPONSE" | python3 -c "
import sys, json
repos = json.load(sys.stdin)
for r in repos:
    if r.get('has_wiki') and not r.get('archived'):
        name = r['name']
        owner = r['owner']['login']
        print(f'{owner}/{name}|{name}')
" 2>/dev/null)

            while IFS='|' read -r full_name display; do
                [[ -n "$full_name" ]] && REPOS["$full_name"]="$display"
            done <<< "$REPO_LIST"

            PAGE=$((PAGE + 1))
            [[ $(echo "$RESPONSE" | python3 -c "import sys,json; print(len(json.load(sys.stdin)))" 2>/dev/null) -lt 50 ]] && break
        done
    done
    log "Found ${#REPOS[@]} repos with wikis"
else
    # Fallback to hardcoded list
    REPOS=(
        ["MokoConsulting/moko-platform"]="moko-platform"
        ["MokoConsulting/MokoOnyx"]="MokoOnyx"
        ["MokoConsulting/MokoWaaS"]="MokoWaaS"
        ["MokoConsulting/monitor-mcp"]="monitor-mcp"
        ["MokoConsulting/deploy-mcp"]="deploy-mcp"
        ["MokoConsulting/ssh-mcp"]="ssh-mcp"
        ["MokoConsulting/backup-mcp"]="backup-mcp"
        ["MokoConsulting/joomla-api-mcp"]="joomla-api-mcp"
        ["MokoConsulting/Template-Client-WaaS"]="Template-Client-WaaS"
        ["ClarksvilleFurs/client-waas-clarksvillefurs"]="client-clarksvillefurs"
    )
fi

FILTER="${1:-}"

# Clone the GitHub wiki repo
log "Cloning ${GITHUB_ORG}/${GITHUB_WIKI_REPO}..."
WIKI_DIR="${TMPDIR}/wiki"
git clone --quiet "https://${GH_TOKEN}@github.com/${GITHUB_ORG}/${GITHUB_WIKI_REPO}.git" "$WIKI_DIR" 2>/dev/null || {
    mkdir -p "$WIKI_DIR"
    cd "$WIKI_DIR"
    git init -b main --quiet
    git remote add origin "https://${GH_TOKEN}@github.com/${GITHUB_ORG}/${GITHUB_WIKI_REPO}.git"
}

cd "$WIKI_DIR"
git config user.email "gitea-actions[bot]@mokoconsulting.tech"
git config user.name "gitea-actions[bot]"

SYNCED=0

for GITEA_REPO in "${!REPOS[@]}"; do
    PROJECT="${REPOS[$GITEA_REPO]}"

    if [[ -n "$FILTER" && "$PROJECT" != "$FILTER" && "$GITEA_REPO" != *"$FILTER"* ]]; then
        continue
    fi

    log "Exporting wiki: ${GITEA_REPO} → ${PROJECT}/"

    # Clone Gitea wiki
    WIKI_CLONE="${TMPDIR}/${PROJECT}.wiki"
    if ! git clone --quiet "${GITEA_URL}/${GITEA_REPO}.wiki.git" "$WIKI_CLONE" 2>/dev/null; then
        log "  SKIP: no wiki"
        continue
    fi

    # Copy wiki pages to project subdirectory
    mkdir -p "${WIKI_DIR}/${PROJECT}"
    rm -rf "${WIKI_DIR}/${PROJECT}"/*

    # Copy all .md files, flatten any subdirectories
    find "$WIKI_CLONE" -name "*.md" -not -path "*/.git/*" | while read -r f; do
        cp "$f" "${WIKI_DIR}/${PROJECT}/"
    done

    PAGE_COUNT=$(find "${WIKI_DIR}/${PROJECT}" -name "*.md" | wc -l)
    log "  ${PAGE_COUNT} pages"
    SYNCED=$((SYNCED + 1))

    rm -rf "$WIKI_CLONE"
done

# Generate README index
cat > "${WIKI_DIR}/README.md" << 'HEADER'
# Moko Consulting — Wiki Archive

Consolidated backup of all project wikis from [Gitea](https://git.mokoconsulting.tech).

> **Source of truth:** Gitea wikis. This repo is a read-only mirror.

## Projects

HEADER

for PROJECT in $(ls -d */ 2>/dev/null | sed 's|/||' | sort); do
    COUNT=$(find "${PROJECT}" -name "*.md" | wc -l)
    echo "- [**${PROJECT}**](${PROJECT}/) — ${COUNT} pages" >> "${WIKI_DIR}/README.md"
done

echo "" >> "${WIKI_DIR}/README.md"
echo "---" >> "${WIKI_DIR}/README.md"
echo "*Last synced: $(date -u '+%Y-%m-%d %H:%M UTC')*" >> "${WIKI_DIR}/README.md"

# Commit and push
git add -A
if ! git diff --cached --quiet 2>/dev/null; then
    git commit --quiet -m "docs: sync wikis from Gitea ($(date -u '+%Y-%m-%d %H:%M UTC'))"
    git push --force origin HEAD:main 2>&1 | tail -3
    log "Pushed to ${GITHUB_ORG}/${GITHUB_WIKI_REPO}"
else
    log "No changes to push"
fi

log "Done. Synced ${SYNCED} project wikis."