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

VAULT_PATH="${VAULT_PATH:-/home/kang/apps/content-forge/content-forge}"
LOG_FILE="${LOG_FILE:-/tmp/vault-sync.log}"

log() {
    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" >> "$LOG_FILE"
}

# Verify vault directory exists
if [[ ! -d "$VAULT_PATH" ]]; then
    log "ERROR: Vault directory does not exist: $VAULT_PATH"
    exit 1
fi

cd "$VAULT_PATH" || {
    log "ERROR: Failed to cd into vault: $VAULT_PATH"
    exit 1
}

# Skip if no changes
if git diff --quiet && git diff --cached --quiet && [ -z "$(git ls-files --others --exclude-standard)" ]; then
    log "No changes to sync"
    exit 0
fi

# Get current branch dynamically
BRANCH=$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo "main")

# Stage all changes
if ! git add -A; then
    log "ERROR: git add failed"
    exit 1
fi

# Commit with timestamp
if ! git commit -m "vault: auto-sync $(date '+%Y-%m-%d %H:%M')"; then
    log "ERROR: git commit failed"
    exit 1
fi

# Push with error handling
if ! git push origin "$BRANCH"; then
    log "ERROR: git push failed (branch: $BRANCH)"
    exit 1
fi

log "Sync successful: pushed to $BRANCH"