#!/bin/sh
# =============================================================================
# Gitea Initialization Script
# =============================================================================
# Replaces the default CMD in the Gitea Docker container.
# Runs database migrations, creates the admin user (if credentials are provided
# and the user doesn't already exist), then starts the Gitea web server.
#
# The Gitea entrypoint (/usr/bin/entrypoint) has already:
#   - Set up UID/GID, created directories, generated app.ini from GITEA__* env vars
# But it exec's our CMD still as root — Gitea refuses to run as root.
# We must drop to the 'git' user before running any gitea commands.
# =============================================================================
set -e

PREFIX="[gitea-init]"
log()  { echo "$PREFIX $1"; }

# Drop privileges: Gitea refuses to run as root. The Docker entrypoint
# sets up directories as root, then exec's the CMD (us) — still as root.
# Re-exec this script as the 'git' user via su-exec.
if [ "$(id -u)" = "0" ]; then
  log "Dropping to git user..."
  exec su-exec git "$0" "$@"
fi

# --- Step 1: Run database migrations ---
log "Running database migrations..."
MIGRATE_OK=false
for i in $(seq 1 10); do
  if gitea migrate 2>&1; then
    MIGRATE_OK=true
    log "Migrations complete"
    break
  fi
  log "Waiting for database... (attempt $i/10)"
  sleep 3
done

if [ "$MIGRATE_OK" = false ]; then
  log "WARNING: Migrations may not have completed — starting anyway"
fi

# --- Step 2: Create admin user if credentials provided ---
if [ -n "$GITEA_ADMIN_USER" ] && [ -n "$GITEA_ADMIN_PASSWORD" ] && [ -n "$GITEA_ADMIN_EMAIL" ]; then
  log "Creating admin user '${GITEA_ADMIN_USER}'..."
  if gitea admin user create --admin \
    --username "$GITEA_ADMIN_USER" \
    --password "$GITEA_ADMIN_PASSWORD" \
    --email "$GITEA_ADMIN_EMAIL" \
    --must-change-password false 2>&1; then
    log "Admin user created successfully"
  else
    log "Admin user already exists (or creation skipped)"
  fi
else
  log "No GITEA_ADMIN_USER/PASSWORD/EMAIL set — skipping admin creation"
fi

# --- Step 3: Start Gitea web server ---
log "Starting Gitea web server..."
exec gitea web