Wan 2.7 Image Text to Image API

set -euo pipefail
: "${VIDGO_API_KEY:?Set VIDGO_API_KEY in your environment}"

REQUEST_BODY=$(cat <<'JSON'
{
  "model": "alibaba/wan-2.7/text-to-image",
  "input": {
    "prompt": "Photorealistic quiet old railway waiting room, warm late-afternoon sunlight, worn wooden benches and cream plaster. A large dark green timetable board is the main focal point, nearly front-facing and occupies half the frame. Render ONLY these five lines of crisp, large, correctly spelled lettering on the board: \"列车时刻 / TIMETABLE\", \"松林 / PINES  08:20\", \"湖畔 / LAKESIDE  10:45\", \"山谷 / VALLEY  16:30\", \"一路平安 / SAFE JOURNEY\". Carefully aligned rows with consistent spacing, all lettering readable. Authentic painted enamel, subtle scratches, dust in the light, cinematic but restrained composition. No other visible text, people, promotional graphics or extra boards. No advertising, brands, logos, watermark, or foxes.",
    "size": "1024x768",
    "n": 1,
    "seed": 270901
  }
}
JSON
)

SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  --request POST \
  --url "https://api.vidgo.ai/api/generate/submit" \
  --header "Authorization: Bearer $VIDGO_API_KEY" \
  --header "Content-Type: application/json" \
  --data "$REQUEST_BODY")

TASK_ID=$(printf '%s' "$SUBMIT_RESPONSE" | jq -r '.data.task_id // .task_id // empty')
if [ -z "$TASK_ID" ]; then
  printf 'Submit response did not include task_id:
%s
' "$SUBMIT_RESPONSE" >&2
  exit 1
fi

while true; do
  STATUS_RESPONSE=$(curl --silent --show-error --fail-with-body \
    --url "https://api.vidgo.ai/api/generate/status/$TASK_ID" \
    --header "Authorization: Bearer $VIDGO_API_KEY")
  STATUS=$(printf '%s' "$STATUS_RESPONSE" | jq -r '.data.status // .status // empty')

  case "$STATUS" in
    finished)
      printf '%s' "$STATUS_RESPONSE" | jq -r '(.data.files // .files // [])[]?.file_url'
      break
      ;;
    failed)
      printf '%s' "$STATUS_RESPONSE" | jq -r '.data.error_message // .error_message // "Generation failed"' >&2
      exit 1
      ;;
    not_started|running)
      sleep 2
      ;;
    *)
      printf 'Unexpected task status: %s
' "$STATUS" >&2
      exit 1
      ;;
  esac
done