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

: "${AD_DOMAIN:?missing AD_DOMAIN}"
: "${AD_USER_PASSWORD:?missing AD_USER_PASSWORD}"
: "${FILESERVER_HOST:?missing FILESERVER_HOST}"

interval=${DEV_ACTIVITY_INTERVAL_SECONDS:-4}

log() {
  printf '[preview-client] %s\n' "$*"
}

smb() {
  local user=$1
  local share=$2
  local commands=$3
  smbclient "//${FILESERVER_HOST}/${share}" \
    -m SMB3 -U "${AD_DOMAIN}\\${user}%${AD_USER_PASSWORD}" \
    -c "$commands"
}

ready=0
for _ in $(seq 1 120); do
  if smb alice Data 'ls' >/dev/null 2>&1; then
    ready=1
    break
  fi
  sleep 1
done
if [[ $ready != 1 ]]; then
  printf '[preview-client] ERROR: SMB server did not become ready\n' >&2
  exit 1
fi

printf 'Generated by the preview SMB client.\n' > /tmp/live-note.txt
smb alice Data 'cd Finance; mkdir Reports; cd Reports; put /tmp/live-note.txt live-note.txt; ls' >/dev/null
smb alice Data 'cd Finance; cd Reports; put /tmp/live-note.txt audit-source.txt; get audit-source.txt /tmp/audit-readback.txt; rename audit-source.txt audit-moved.txt; del audit-moved.txt' >/dev/null
smb carol Data 'cd Engineering; mkdir Designs; cd Designs; put /tmp/live-note.txt architecture.txt; ls' >/dev/null
smb alice Private 'cd alice; put /tmp/live-note.txt notes.txt; ls' >/dev/null
smb report_svc Data 'cd Finance; cd Reports; put /tmp/live-note.txt ignored-service-event.txt; get ignored-service-event.txt /tmp/ignored-service-readback.txt; del ignored-service-event.txt' >/dev/null
touch /run/preview-client-ready
log 'Initial SMB file operations complete; generating live activity'

counter=0
while true; do
  counter=$((counter + 1))
  printf 'Preview activity event %d at %s\n' "$counter" "$(date -u +%FT%TZ)" > /tmp/live-note.txt
  smb alice Data 'cd Finance; cd Reports; put /tmp/live-note.txt live-note.txt; get live-note.txt /tmp/readback.txt; ls' >/dev/null 2>&1 || true
  smb bob Data 'cd Finance; ls' >/dev/null 2>&1 || true
  smb carol Data 'cd Engineering; cd Designs; get architecture.txt /tmp/architecture.txt; ls' >/dev/null 2>&1 || true
  smb eve Data 'cd Projects; ls' >/dev/null 2>&1 || true
  smb alice Private 'cd alice; ls; get notes.txt /tmp/private-note.txt' >/dev/null 2>&1 || true
  sleep "$interval"
done