use crate::types::{ManagedAddress, heap::Address};

use super::{AnnotatedValue, TxEnv};

/// Marks the sender of any transaction.
pub trait TxFrom<Env>
where
    Env: TxEnv,
{
    fn resolve_address(&self, env: &Env) -> ManagedAddress<Env::Api>;
}

/// Marks the non-empty sender of a transaction.
///
/// Enforces the sender to be explicitly specified.
#[diagnostic::on_unimplemented(
    message = "Type `{Self}` cannot be used as a sender value (does not implement `TxFromSpecified<{Env}>`)",
    label = "sender needs to be explicit",
    note = "there are multiple ways to specify the sender value for a transaction, but `{Self}` is not one of them"
)]
pub trait TxFromSpecified<Env>:
    TxFrom<Env> + AnnotatedValue<Env, ManagedAddress<Env::Api>>
where
    Env: TxEnv,
{
}

impl<Env> TxFrom<Env> for ()
where
    Env: TxEnv,
{
    fn resolve_address(&self, env: &Env) -> ManagedAddress<Env::Api> {
        env.resolve_sender_address()
    }
}

impl<Env> TxFrom<Env> for ManagedAddress<Env::Api>
where
    Env: TxEnv,
{
    fn resolve_address(&self, _env: &Env) -> ManagedAddress<Env::Api> {
        self.clone()
    }
}
impl<Env> TxFromSpecified<Env> for ManagedAddress<Env::Api> where Env: TxEnv {}

impl<Env> TxFrom<Env> for &ManagedAddress<Env::Api>
where
    Env: TxEnv,
{
    fn resolve_address(&self, _env: &Env) -> ManagedAddress<Env::Api> {
        (*self).clone()
    }
}
impl<Env> TxFromSpecified<Env> for &ManagedAddress<Env::Api> where Env: TxEnv {}

impl<Env> TxFrom<Env> for Address
where
    Env: TxEnv,
{
    fn resolve_address(&self, _env: &Env) -> ManagedAddress<Env::Api> {
        self.into()
    }
}

impl<Env> TxFromSpecified<Env> for Address where Env: TxEnv {}

impl<Env> TxFrom<Env> for &Address
where
    Env: TxEnv,
{
    fn resolve_address(&self, _env: &Env) -> ManagedAddress<Env::Api> {
        ManagedAddress::from_address(self)
    }
}

impl<Env> TxFromSpecified<Env> for &Address where Env: TxEnv {}
