Disable trading-type extrinsic for new subnet until start call

[open-junius]

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

After the "start call" feature deployed, we found out it is very easy for some users to manipulate the price of Alpha because of no emission before "start call" triggered by subnet owner. like the subnet 83. A new feature could avoid it by disable trading-type extrinsic, and enable them until start call, the init emission block number is set.

The disabled status could be set by sudo, will add it into admin-utils pallet.

Describe the solution you'd like

The solution is quite simple, we can define a function like ensure_emission_set(netuid).
check if the first emission block number is set. throw an error if not set yet.
add this check to all trading-type extrinsic after ensure_origin.

for sudo call, we need a separate storage to disable extrinsic even after "start call"

Describe alternatives you've considered

No response

Additional context

No response

[ppolewicz]

Let me try to word it a bit differently.

1. Add new boolean hyperparameter to the subnet subtoken_enabled
2. Prevent staking, unstaking and atomic trading of the subtoken if the hyperparameter is false
3. Default (for new subnets too) is false
4. Migration will set it to true it for all current started subnets
5. The hyperparameter will be set to true when the subnet is being started
6. only global governance (currently sudo key, in the future some other more decentralized body) will be able to change the value of the hyperparameter using an extrinsic

[open-junius]

The extrinsic list as follows:

1. group one: filter according to netuid as method parameter
   add_stake
   remove_stake
   burned_register
   recycle_alpha
   burn_alpha

2. group two: for all subnet, filter subtoken_enabled as false
   unstake_all (filter netuid)
   unstake_all_alpha (filter netuid)

3. group three: check both origin netuid and dest netuid.
   move_stake (for both origin netuid and dest netuid)
   transfer_stake (for both origin netuid and dest netuid)
   swap_stake (for both origin netuid and dest netuid)

[open-junius]

@ppolewicz how to handle the root network for subtoken_enabled. It should be always as true to my knowledge.

[ppolewicz]

Correct

[camfairchild]

The extrinsic list as follows:

1. group one: filter according to netuid as method parameter
   add_stake
   remove_stake
   burned_register
   recycle_alpha
   burn_alpha

2. group two: for all subnet, filter subtoken_enabled as false
   unstake_all (filter netuid)
   unstake_all_alpha (filter netuid)

3. group three: check both origin netuid and dest netuid.
   move_stake (for both origin netuid and dest netuid)
   transfer_stake (for both origin netuid and dest netuid)
   swap_stake (for both origin netuid and dest netuid)

Should be able to utilize the validate stake transfer functions for this as well.