# ================================================================
#  AMPP Framelight X — MP3 Asset Reclassifier
#  Production v1.0
#
#  The S3 File Trigger registers .mp3 files as type "document"
#  instead of "audio". This script detects MP3 assets and patches
#  their type:type from "document" to "audio".
#
#  Place this script node AFTER S3 Transfer in the workflow,
#  BEFORE Generate Proxy. Wire:
#    S3 Transfer (ok)  → MP3 Reclassifier → Generate Proxy / Rename
#    S3 Transfer (failed) → End (ITS OVER, WE LOST!)
#
#  If the asset is not an MP3, the script exits cleanly via ok
#  with no changes made.
# ================================================================
import json

asset_id   = str(asset.Id)
asset_name = str(job.AssetName)

# Check if this is an MP3 file (case-insensitive)
if not asset_name.lower().endswith(".mp3"):
    # Not an MP3 — nothing to do, pass through
    pass
else:
    # Fetch the current asset record to get asset:rev (required for PATCH)
    try:
        current = httpClient.sendAsync(
            "GET",
            "api/v1/store/asset/Assets/" + asset_id
        )
        asset_rev = str(current.get("asset:rev", "0"))
    except Exception as ex:
        raise Exception("MP3 Reclassifier: failed to fetch asset record: " + str(ex))

    # PATCH type:type from "document" → "audio"
    # Uses JSON Patch format as required by the AMPP Assets API
    patch_body = json.dumps([
        {
            "op":    "replace",
            "path":  "/type:type",
            "value": "audio"
        }
    ])

    try:
        httpClient.sendAsync(
            "PATCH",
            "api/v1/store/asset/Assets/" + asset_id,
            patch_body
        )
    except Exception as ex:
        raise Exception(
            "MP3 Reclassifier: PATCH failed for asset '"
            + asset_name + "' (" + asset_id + "): " + str(ex)
        )