Better reporting of item type and asset types options for subscriptions helpers

[cholmes]

Is your feature request related to a problem? Please describe.

When using planet subscriptions request-catalog I'm not sure of what the options for assets or item-types are, but they CLI gives me no help, like it does with planet orders request or the data api cli

Describe the solution you'd like

When I don't include item-types, leave it blank, or fill it out wrong I'd like the CLI to list the available item types. And similar for asset-types. I'd also like it to validate the ones I put in - right now I can put 'item-types blah' and it takes it just fine (while orders complains).

Describe alternatives you've considered

Looking up the proper item type every time, or switching to orders CLI to get it's list (but that only works for item-types, as it uses bundles instead of asset types).

Additional context

[cholmes]

Note we should be sure to make the item-types case insensitive, to be in line with #599 changes.

[kevinlacaille]

Item types are case insensitive for subscriptions
i.e.,

❯ planet subscriptions request-catalog \
        --item-types psscene \
        --asset-types ortho_analytic_8b_sr,ortho_udm2 \
        --geometry ../jsons_for_tests/aoi.geojson \
        --start-time 2022-01-01
{"type": "catalog", "parameters": {"item_types": ["psscene"], "asset_types": ["ortho_analytic_8b_sr", "ortho_udm2"], "geometry": {"type": "Polygon", "coordinates": [[[7.05322265625, 46.81509864599243], [7.580566406250001, 46.81509864599243], [7.580566406250001, 47.17477833929903], [7.05322265625, 47.17477833929903], [7.05322265625, 46.81509864599243]]]}, "start_time": "2022-01-01T00:00:00Z"}}

[kevinlacaille]

However, it does not report back valid item types or asset types if provided with an invalid types

❯ planet subscriptions request-catalog \
        --item-types not-a-valid-item-type \
        --asset-types not-a-valid-asset-type \
        --geometry ../jsons_for_tests/aoi.geojson \
        --start-time 2022-01-01
{"type": "catalog", "parameters": {"item_types": ["not-a-valid-item-type"], "asset_types": ["not-a-valid-asset-type"], "geometry": {"type": "Polygon", "coordinates": [[[7.05322265625, 46.81509864599243], [7.580566406250001, 46.81509864599243], [7.580566406250001, 47.17477833929903], [7.05322265625, 47.17477833929903], [7.05322265625, 46.81509864599243]]]}, "start_time": "2022-01-01T00:00:00Z"}}

[jreiberkyle]

looks like it's not validating, eh?

[kevinlacaille]

@jreiberkyle sounds like it's related to #903 ;)