#!/usr/bin/env bash
# Repeatable B12 smoke harness for running the reused Chatwoot frontend against GoChat.

set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
CHATWOOT_DIR="${CHATWOOT_DIR:-$ROOT/reference/chatwoot}"
LOG_DIR="${GOCHAT_SMOKE_LOG_DIR:-$ROOT/.tmp/frontend-smoke}"
REPORT_PATH="${GOCHAT_SMOKE_REPORT:-$ROOT/docs/parity/frontend_smoke_report.md}"
API_HOST="${GOCHAT_SMOKE_API_HOST:-127.0.0.1}"
API_PORT="${GOCHAT_SMOKE_API_PORT:-3000}"
FRONTEND_HOST="${GOCHAT_SMOKE_FRONTEND_HOST:-127.0.0.1}"
FRONTEND_PORT="${GOCHAT_SMOKE_FRONTEND_PORT:-3036}"
SEARCH_ENGINE="${GOCHAT_SMOKE_SEARCH_ENGINE:-meilisearch}"
MEILI_HOST="${GOCHAT_SMOKE_MEILI_HOST:-http://127.0.0.1:7700}"
MEILI_API_KEY="${GOCHAT_SMOKE_MEILI_API_KEY:-gochat_dev}"
MODE="run"
KEEP_ALIVE="true"

usage() {
  cat <<USAGE
Usage: scripts/parity_frontend_smoke.sh [--check|--print|--boot-only|--api-smoke] [--no-seed]

Modes:
  --check      Validate local prerequisites and write a readiness report.
  --print      Print the exact boot commands without starting processes.
  --boot-only  Start GoChat and Vite, verify /health and frontend HTTP, then exit.
  --api-smoke  Run seed plus Chatwoot-frontend API assertions against a running GoChat backend.
  --no-seed    Skip seed during --api-smoke and use GOCHAT_SEED_* values already present in DB.

Environment:
  CHATWOOT_DIR                  Chatwoot checkout path. Default: reference/chatwoot
  GOCHAT_SMOKE_API_PORT         GoChat backend port. Default: 3000
  GOCHAT_SMOKE_FRONTEND_PORT    Vite frontend port. Default: 3036
  GOCHAT_SMOKE_LOG_DIR          Log directory. Default: .tmp/frontend-smoke
  GOCHAT_SMOKE_REPORT           Markdown report path. Default: docs/parity/frontend_smoke_report.md
  GOCHAT_SMOKE_SEARCH_ENGINE    Search engine for boot smoke. Default: meilisearch
  GOCHAT_SMOKE_MEILI_HOST       Meilisearch URL. Default: http://127.0.0.1:7700
  GOCHAT_SMOKE_MEILI_API_KEY    Meilisearch API key. Default: gochat_dev
USAGE
}

RUN_SEED="true"

for arg in "$@"; do
  case "$arg" in
    --check) MODE="check" ;;
    --print) MODE="print" ;;
    --boot-only) KEEP_ALIVE="false" ;;
    --api-smoke) MODE="api-smoke" ;;
    --no-seed) RUN_SEED="false" ;;
    -h|--help) usage; exit 0 ;;
    *) echo "unknown argument: $arg" >&2; usage; exit 2 ;;
  esac
done

backend_cmd=(env GOCHAT_ENV=development GOCHAT_SERVER_HOST="$API_HOST" GOCHAT_SERVER_PORT="$API_PORT" GOCHAT_SERVER_MODE=debug GOCHAT_SEARCH_ENGINE="$SEARCH_ENGINE" GOCHAT_SEARCH_HOST="$MEILI_HOST" GOCHAT_SEARCH_API_KEY="$MEILI_API_KEY" GOCHAT_CAPTAIN_ENABLED=false go run ./cmd/gochat serve)
frontend_cmd=(env CHATWOOT_API_HOST="http://$API_HOST:$API_PORT" pnpm exec vite --host "$FRONTEND_HOST" --port "$FRONTEND_PORT")

need() {
  if ! command -v "$1" >/dev/null 2>&1; then
    echo "missing required command: $1" >&2
    return 1
  fi
}

write_report() {
  local status="$1"
  local notes="$2"
  mkdir -p "$(dirname "$REPORT_PATH")"
  cat >"$REPORT_PATH" <<REPORT
# Frontend Smoke Report

Updated: $(date -u +%Y-%m-%dT%H:%M:%SZ)

## Status

$status

## Boot Command

\`\`\`bash
scripts/parity_frontend_smoke.sh --boot-only
\`\`\`

## API Smoke Command

\`\`\`bash
scripts/parity_frontend_smoke.sh --api-smoke
\`\`\`

## Backend

- URL: http://$API_HOST:$API_PORT
- Command: \`${backend_cmd[*]}\`
- Search: \`$SEARCH_ENGINE\` at \`$MEILI_HOST\`
- Log: \`$LOG_DIR/gochat.log\`

## Reused Chatwoot Frontend

- URL: http://$FRONTEND_HOST:$FRONTEND_PORT
- Source: \`$CHATWOOT_DIR\`
- Command: \`(cd $CHATWOOT_DIR && ${frontend_cmd[*]})\`
- Log: \`$LOG_DIR/chatwoot-vite.log\`

## Seed Path

\`\`\`bash
GOCHAT_SEED_ADMIN_EMAIL=admin@gochat.local \\
GOCHAT_SEED_ADMIN_PASSWORD=changeme \\
GOCHAT_SEED_ACCOUNT_NAME="B12 Smoke Account" \\
GOCHAT_SEED_INBOX_NAME="B12 Smoke Website Inbox" \\
go run ./cmd/gochat seed
\`\`\`

The seed command creates deterministic login/account/inbox/contact/company/conversation data plus CSAT, SLA, CustomRole, AgentCapacity, and Captain fixtures for the smoke paths.

## Smoke Matrix

| Area | Current result | Owner if failing |
| --- | --- | --- |
| Boot GoChat backend | ${BOOT_BACKEND_RESULT:-Not run in check mode} | B12.1 |
| Boot reused Chatwoot Vite frontend | ${BOOT_FRONTEND_RESULT:-Not run in check mode} | B12.1 |
| Auth/profile | ${AUTH_PROFILE_RESULT:-Pending browser/API smoke} | B2/B12.2 |
| Inbox list/settings | ${INBOX_RESULT:-Pending browser/API smoke} | B5/B12.2 |
| Conversation list/detail/message send | ${CONVERSATION_RESULT:-Pending browser/API smoke} | B3/B12.2 |
| Contact/company views | ${CRM_RESULT:-Pending browser/API smoke} | B4/B12.2 |
| Widget config/message | ${WIDGET_RESULT:-Pending browser/API smoke} | B12.2 |
| Public CSAT | ${CSAT_RESULT:-Pending browser/API smoke} | B8/B12.2 |
| Enterprise screens | ${ENTERPRISE_RESULT:-Pending browser/API smoke} | B7-B11/B12.3 |

## Notes

$notes

When using the default Meilisearch-first boot command, start Meilisearch separately, for example:

\`docker run --rm -p 7700:7700 -e MEILI_MASTER_KEY=$MEILI_API_KEY getmeili/meilisearch:latest\`
REPORT
}

check_prereqs() {
  need go
  need curl
  need node
  need pnpm
  test -d "$CHATWOOT_DIR" || { echo "missing Chatwoot checkout: $CHATWOOT_DIR" >&2; return 1; }
  test -f "$CHATWOOT_DIR/package.json" || { echo "missing Chatwoot package.json" >&2; return 1; }
  test -f "$ROOT/cmd/gochat/main.go" || { echo "missing GoChat server entrypoint cmd/gochat/main.go" >&2; return 1; }
}

wait_url() {
  local url="$1"
  local label="$2"
  for _ in $(seq 1 60); do
    if curl -fsS "$url" >/dev/null 2>&1; then
      echo "$label ready: $url"
      return 0
    fi
    sleep 1
  done
  echo "$label did not become ready: $url" >&2
  return 1
}

print_commands() {
  echo "Backend:  ${backend_cmd[*]}"
  echo "Frontend: (cd $CHATWOOT_DIR && ${frontend_cmd[*]})"
  echo "API smoke: scripts/parity_frontend_smoke.sh --api-smoke"
  echo "Report:   $REPORT_PATH"
}

tmp_file() {
  local file
  file="$(mktemp "$LOG_DIR/smoke.XXXXXX")"
  echo "$file"
}

json_value() {
  local file="$1"
  local expr="$2"
  node -e 'const fs = require("fs"); const data = JSON.parse(fs.readFileSync(process.argv[1], "utf8")); const value = Function("data", "return " + process.argv[2])(data); if (value === undefined || value === null) process.exit(2); if (typeof value === "object") console.log(JSON.stringify(value)); else console.log(String(value));' "$file" "$expr"
}

json_assert() {
  local file="$1"
  local expr="$2"
  local label="$3"
  node -e 'const fs = require("fs"); const data = JSON.parse(fs.readFileSync(process.argv[1], "utf8")); if (!Function("data", "return " + process.argv[2])(data)) { console.error("assertion failed: " + process.argv[3]); process.exit(1); }' "$file" "$expr" "$label"
  echo "ok: $label"
}

header_value() {
  local file="$1"
  local name="$2"
  awk -v key="${name,,}" 'BEGIN { FS=":" } { current=tolower($1); if (current == key) { sub(/^[[:space:]]+/, "", $2); sub(/\r$/, "", $2); print $2; exit } }' "$file"
}

authed_curl() {
  curl -fsS \
    -H "access-token: $ACCESS_TOKEN" \
    -H "client: $CLIENT" \
    -H "uid: $UID_HEADER" \
    -H "token-type: $TOKEN_TYPE" \
    -H "Content-Type: application/json" \
    "$@"
}

run_api_smoke() {
  mkdir -p "$LOG_DIR"

  local seed_file account_id inbox_id contact_id company_id conversation_display_id conversation_uuid
  seed_file="$(tmp_file)"
  if [[ "$RUN_SEED" == "true" ]]; then
    echo "seeding smoke data..."
    (cd "$ROOT" && env GOCACHE="${GOCACHE:-/tmp/gochat-gocache}" GOMODCACHE="${GOMODCACHE:-/tmp/gochat-gomodcache}" go run ./cmd/gochat seed) >"$seed_file"
  else
    cat >"$seed_file" <<SEED
{"admin_email":"${GOCHAT_SEED_ADMIN_EMAIL:-admin@gochat.local}","admin_password":"${GOCHAT_SEED_ADMIN_PASSWORD:-changeme}","account_id":"${GOCHAT_SMOKE_ACCOUNT_ID:-1}","inbox_id":"${GOCHAT_SMOKE_INBOX_ID:-1}","contact_id":"${GOCHAT_SMOKE_CONTACT_ID:-1}","company_id":"${GOCHAT_SMOKE_COMPANY_ID:-1}","conversation_display_id":"${GOCHAT_SMOKE_CONVERSATION_DISPLAY_ID:-1}","conversation_uuid":"${GOCHAT_SMOKE_CONVERSATION_UUID:-}"}
SEED
  fi
  cp "$seed_file" "$LOG_DIR/seed.json"

  local admin_email admin_password
  admin_email="$(json_value "$seed_file" 'data.admin_email')"
  admin_password="$(json_value "$seed_file" 'data.admin_password')"
  account_id="$(json_value "$seed_file" 'data.account_id')"
  inbox_id="$(json_value "$seed_file" 'data.inbox_id')"
  contact_id="$(json_value "$seed_file" 'data.contact_id')"
  company_id="$(json_value "$seed_file" 'data.company_id')"
  conversation_display_id="$(json_value "$seed_file" 'data.conversation_display_id || 1')"
  conversation_uuid="$(json_value "$seed_file" 'data.conversation_uuid || ""')"

  wait_url "http://$API_HOST:$API_PORT/health" "GoChat"

  local headers body signin_body
  headers="$(tmp_file)"
  body="$(tmp_file)"
  signin_body="$(tmp_file)"
  node -e 'const fs = require("fs"); fs.writeFileSync(process.argv[1], JSON.stringify({ email: process.argv[2], password: process.argv[3] }));' "$signin_body" "$admin_email" "$admin_password"
  curl -fsS -D "$headers" -o "$body" -H "Content-Type: application/json" -X POST --data-binary "@$signin_body" "http://$API_HOST:$API_PORT/auth/sign_in"
  cp "$headers" "$LOG_DIR/sign_in.headers"
  cp "$body" "$LOG_DIR/sign_in.json"
  json_assert "$body" 'data.data && data.data.email === "'"$admin_email"'"' "auth sign_in returns current user"

  ACCESS_TOKEN="$(header_value "$headers" access-token)"
  CLIENT="$(header_value "$headers" client)"
  UID_HEADER="$(header_value "$headers" uid)"
  TOKEN_TYPE="$(header_value "$headers" token-type)"
  if [[ -z "$ACCESS_TOKEN" || -z "$CLIENT" || -z "$UID_HEADER" ]]; then
    echo "sign_in did not return DeviseTokenAuth headers" >&2
    return 1
  fi

  body="$(tmp_file)"
  authed_curl -o "$body" "http://$API_HOST:$API_PORT/auth/validate_token"
  cp "$body" "$LOG_DIR/validate_token.json"
  json_assert "$body" 'data.payload && data.payload.success === true' "auth validate_token accepts frontend headers"

  body="$(tmp_file)"
  authed_curl -o "$body" "http://$API_HOST:$API_PORT/api/v1/profile"
  cp "$body" "$LOG_DIR/profile.json"
  json_assert "$body" 'data.email === "'"$admin_email"'"' "profile returns Chatwoot user serializer"

  body="$(tmp_file)"
  authed_curl -o "$body" "http://$API_HOST:$API_PORT/api/v1/accounts/$account_id/inboxes"
  cp "$body" "$LOG_DIR/inboxes.json"
  json_assert "$body" 'Array.isArray(data.payload) && data.payload.some(inbox => Number(inbox.id) === Number("'"$inbox_id"'"))' "inbox list includes seeded widget inbox"

  body="$(tmp_file)"
  authed_curl -o "$body" "http://$API_HOST:$API_PORT/api/v1/accounts/$account_id/conversations?status=open"
  cp "$body" "$LOG_DIR/conversations.json"
  json_assert "$body" 'data.data && Array.isArray(data.data.payload) && data.data.payload.length >= 1' "conversation list returns Chatwoot data payload"

  body="$(tmp_file)"
  authed_curl -o "$body" "http://$API_HOST:$API_PORT/api/v1/accounts/$account_id/conversations/$conversation_display_id/messages"
  cp "$body" "$LOG_DIR/conversation_messages.json"
  json_assert "$body" 'data.payload && Array.isArray(data.payload) && data.payload.length >= 1' "conversation messages return payload"

  local message_body
  message_body="$(tmp_file)"
  node -e 'const fs = require("fs"); fs.writeFileSync(process.argv[1], JSON.stringify({ content: "B12 API smoke outgoing message", message_type: "outgoing", private: false }));' "$message_body"
  body="$(tmp_file)"
  authed_curl -X POST --data-binary "@$message_body" -o "$body" "http://$API_HOST:$API_PORT/api/v1/accounts/$account_id/conversations/$conversation_display_id/messages"
  cp "$body" "$LOG_DIR/message_create.json"
  json_assert "$body" 'data.content === "B12 API smoke outgoing message"' "message create accepts dashboard payload"

  body="$(tmp_file)"
  authed_curl -o "$body" "http://$API_HOST:$API_PORT/api/v1/accounts/$account_id/contacts/$contact_id"
  cp "$body" "$LOG_DIR/contact.json"
  json_assert "$body" 'data.payload && Number(data.payload.id) === Number("'"$contact_id"'")' "contact show returns payload"

  body="$(tmp_file)"
  authed_curl -o "$body" "http://$API_HOST:$API_PORT/api/v1/accounts/$account_id/companies/$company_id"
  cp "$body" "$LOG_DIR/company.json"
  json_assert "$body" 'data.payload && Number(data.payload.id) === Number("'"$company_id"'")' "company show returns payload"

  body="$(tmp_file)"
  curl -fsS -X POST -o "$body" "http://$API_HOST:$API_PORT/api/v1/widget/config?website_token=gochat-smoke-widget-token"
  cp "$body" "$LOG_DIR/widget_config.json"
  json_assert "$body" 'data.website_channel_config && data.website_channel_config.website_token === "gochat-smoke-widget-token" && data.contact && data.contact.pubsub_token' "widget config returns auth token"
  local widget_token
  widget_token="$(json_value "$body" 'data.contact.pubsub_token')"

  body="$(tmp_file)"
  curl -fsS -H "X-Auth-Token: $widget_token" -H "Content-Type: application/json" -X POST --data-binary '{"message":{"content":"B12 widget smoke message"}}' -o "$body" "http://$API_HOST:$API_PORT/api/v1/widget/messages"
  cp "$body" "$LOG_DIR/widget_message.json"
  json_assert "$body" 'data.content === "B12 widget smoke message" && data.conversation_id' "widget message create works"

  if [[ -n "$conversation_uuid" ]]; then
    body="$(tmp_file)"
    curl -fsS -o "$body" "http://$API_HOST:$API_PORT/public/api/v1/csat_survey/$conversation_uuid"
    cp "$body" "$LOG_DIR/public_csat.json"
    json_assert "$body" 'data.display_type === "emoji" && data.content' "public CSAT show returns survey payload"
  fi

  BOOT_BACKEND_RESULT="Passed /health during API smoke" \
  AUTH_PROFILE_RESULT="Passed API smoke" \
  INBOX_RESULT="Passed API smoke" \
  CONVERSATION_RESULT="Passed API smoke" \
  CRM_RESULT="Passed contact/company API smoke" \
  WIDGET_RESULT="Passed API smoke" \
  CSAT_RESULT="Passed public show API smoke" \
  ENTERPRISE_RESULT="Pending B12.3 browser/API smoke" \
  write_report "API smoke passed for reused Chatwoot frontend core paths; live browser smoke not run in this mode." "Command run: \`scripts/parity_frontend_smoke.sh --api-smoke\`. Logs and payload captures are under \`$LOG_DIR\`. B12.2 still needs browser navigation assertions for the reused Vite app, and B12.3 must add enterprise screen assertions."
  echo "api smoke passed; report written to $REPORT_PATH"
}

if [[ "$MODE" == "print" ]]; then
  print_commands
  exit 0
fi

check_prereqs

if [[ "$MODE" == "check" ]]; then
  env GOCACHE="${GOCACHE:-/tmp/gochat-gocache}" GOMODCACHE="${GOMODCACHE:-/tmp/gochat-gomodcache}" go test ./cmd/gochat -count=1
  write_report "Harness readiness check passed; live frontend smoke not run in this mode." "Run \`scripts/parity_frontend_smoke.sh --boot-only\` after PostgreSQL, Redis, Meilisearch, and Chatwoot frontend dependencies are available."
  echo "check passed; report written to $REPORT_PATH"
  exit 0
fi

if [[ "$MODE" == "api-smoke" ]]; then
  run_api_smoke
  exit 0
fi

mkdir -p "$LOG_DIR"
trap 'jobs -pr | xargs -r kill 2>/dev/null || true' EXIT

echo "starting GoChat backend..."
(cd "$ROOT" && "${backend_cmd[@]}") >"$LOG_DIR/gochat.log" 2>&1 &
wait_url "http://$API_HOST:$API_PORT/health" "GoChat"

echo "starting reused Chatwoot frontend..."
(cd "$CHATWOOT_DIR" && "${frontend_cmd[@]}") >"$LOG_DIR/chatwoot-vite.log" 2>&1 &
wait_url "http://$FRONTEND_HOST:$FRONTEND_PORT" "Chatwoot Vite"

BOOT_BACKEND_RESULT="Passed boot readiness" \
BOOT_FRONTEND_RESULT="Passed boot readiness" \
write_report "Boot smoke passed for backend and reused Chatwoot frontend." "This run verified process boot and HTTP readiness only. B12.2 must add browser/API path assertions and update the smoke matrix."
echo "smoke boot passed; report written to $REPORT_PATH"

if [[ "$KEEP_ALIVE" == "true" ]]; then
  echo "press Ctrl-C to stop both processes"
  wait
fi