#!/usr/bin/env bash
#
# flow-list.sh — List Authentik flows
#
# Usage: flow-list.sh [-f format] [-d designation] [-a instance]
#
# Options:
#   -f format        Output format: table (default), json
#   -d designation   Filter by designation (authentication, authorization, enrollment, etc.)
#   -a instance      Authentik instance name (e.g. usc, mosaic)
#   -h               Show this help
set -euo pipefail

MOSAIC_HOME="${MOSAIC_HOME:-$HOME/.config/mosaic}"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$MOSAIC_HOME/tools/_lib/credentials.sh"

FORMAT="table"
DESIGNATION=""
AK_INSTANCE=""

while getopts "f:d:a:h" opt; do
  case $opt in
    f) FORMAT="$OPTARG" ;;
    d) DESIGNATION="$OPTARG" ;;
    a) AK_INSTANCE="$OPTARG" ;;
    h) head -14 "$0" | grep "^#" | sed 's/^# \?//'; exit 0 ;;
    *) echo "Usage: $0 [-f format] [-d designation] [-a instance]" >&2; exit 1 ;;
  esac
done

if [[ -n "$AK_INSTANCE" ]]; then
  load_credentials "authentik-${AK_INSTANCE}"
else
  load_credentials authentik
fi

TOKEN=$("$SCRIPT_DIR/auth-token.sh" -q ${AK_INSTANCE:+-a "$AK_INSTANCE"})

PARAMS="ordering=slug"
[[ -n "$DESIGNATION" ]] && PARAMS="${PARAMS}&designation=${DESIGNATION}"

response=$(curl -sk -w "\n%{http_code}" \
  -H "Authorization: Bearer $TOKEN" \
  "${AUTHENTIK_URL}/api/v3/flows/instances/?${PARAMS}")

http_code=$(echo "$response" | tail -n1)
body=$(echo "$response" | sed '$d')

if [[ "$http_code" != "200" ]]; then
  echo "Error: Failed to list flows (HTTP $http_code)" >&2
  exit 1
fi

if [[ "$FORMAT" == "json" ]]; then
  echo "$body" | jq '.results'
  exit 0
fi

echo "NAME                          SLUG                          DESIGNATION       TITLE"
echo "----------------------------  ----------------------------  ----------------  ----------------------------"
echo "$body" | jq -r '.results[] | [
  .name,
  .slug,
  .designation,
  (.title // "—")
] | @tsv' | while IFS=$'\t' read -r name slug designation title; do
  printf "%-28s  %-28s  %-16s  %s\n" \
    "${name:0:28}" "${slug:0:28}" "$designation" "${title:0:28}"
done
