#!/usr/bin/env bash
set -euo pipefail

########################################
# CONFIG — EDIT THESE 4 LINES
########################################
VAULT_PATH="/Users/davidglidden/Library/Mobile Documents/iCloud~md~obsidian/Documents/David, root-and-branch"
MIRROR_PATH="/Users/davidglidden/_Dev/david-root-and-branch-vault-git"
GIT_REMOTE="https://git.skemantix.com/David/david-root-and-branch-vault-git.git"
GIT_BRANCH="main"

# Optional: set your git identity here (comment out if already global)
# GIT_NAME="David Glidden"
# GIT_EMAIL="you@example.com"

# Excludes file lives alongside this script
EXCLUDES_FILE="$(dirname "$0")/obsidian_rsync_excludes.txt"
LOG_FILE="${HOME}/Library/Logs/vaultsync.log"
########################################

timestamp() { date "+%Y-%m-%d %H:%M:%S"; }
log() { printf "[%s] %s\n" "$(timestamp)" "$*" | tee -a "$LOG_FILE"; }

ensure_paths() {
  mkdir -p "$(dirname "$LOG_FILE")"
  mkdir -p "$MIRROR_PATH"
}

# Guard: skip if iCloud still downloading placeholders (*.icloud)
icloud_busy() {
  # Any placeholder files inside vault?
  # NOTE: adjust -prune if you want to skip very large folders from scanning
  if find "$VAULT_PATH" -type f -name "*.icloud" -print -quit | grep -q . ; then
    return 0
  else
    return 1
  fi
}

init_git_repo() {
  if [ ! -d "$MIRROR_PATH/.git" ]; then
    log "Initializing git repo in $MIRROR_PATH"
    git init "$MIRROR_PATH"
    git -C "$MIRROR_PATH" checkout -b "$GIT_BRANCH" || true
    git -C "$MIRROR_PATH" remote add origin "$GIT_REMOTE" || true
    git -C "$MIRROR_PATH" config user.name "$GIT_NAME" || true
    git -C "$MIRROR_PATH" config user.email "$GIT_EMAIL" || true
  fi
}

do_rsync() {
  log "Syncing from iCloud vault → mirror"
  rsync -av --delete \
    --exclude-from="$EXCLUDES_FILE" \
    "$VAULT_PATH"/ "$MIRROR_PATH"/ | tee -a "$LOG_FILE"
}

do_commit_push() {
  log "Checking for changes to commit"
  if ! git -C "$MIRROR_PATH" diff --quiet || \
     ! git -C "$MIRROR_PATH" diff --cached --quiet || \
     [ -n "$(git -C "$MIRROR_PATH" ls-files --others --exclude-standard)" ]; then
    git -C "$MIRROR_PATH" add -A
    git -C "$MIRROR_PATH" commit -m "Mirror sync $(date +%Y-%m-%d_%H-%M-%S)" --no-verify
    log "Committed changes"
    # Push; if first push, set upstream
    if git -C "$MIRROR_PATH" rev-parse --verify "$GIT_BRANCH" >/dev/null 2>&1; then
      git -C "$MIRROR_PATH" push origin "$GIT_BRANCH" || log "Push failed (network?). Will retry next run."
    else
      git -C "$MIRROR_PATH" push -u origin "$GIT_BRANCH" || log "First push failed. Check remote."
    fi
  else
    log "No changes to commit"
  fi
}

main() {
  ensure_paths

  if icloud_busy; then
    log "iCloud still downloading placeholders (*.icloud). Skipping this run."
    exit 0
  fi

  init_git_repo
  do_rsync
  do_commit_push

  log "Done."
}

main "$@"