教程：代币与资金池

cd contracts
for p in token amm amm-factory; do
  cargo rustc --release --locked --target wasm32-unknown-unknown --package $p --crate-type cdylib
done
cd ..
W=contracts/target/wasm32-unknown-unknown/release
wc -c $W/token.wasm $W/amm.wasm $W/amm_factory.wasm

# 给 --args 和 --init-args 用的 Borsh 值、合约 ID，以及精简的回执（python3、jq）
enc_u128() { python3 -c 'import sys; print(int(sys.argv[1]).to_bytes(16, "little").hex())' "$1"; }
enc_string() {
  python3 -c 'import sys; b = sys.argv[1].encode()
print(len(b).to_bytes(4, "little").hex() + b.hex())' "$1"
}
dec_u128() {  # 一个或多个依次相连的 u128 值
  python3 -c 'import sys; b = bytes.fromhex(sys.argv[1])
print(*(int.from_bytes(b[i:i + 16], "little") for i in range(0, len(b), 16)))' "$1"
}
code_hash() {
  python3 -c 'import hashlib, sys
print(hashlib.sha256(open(sys.argv[1], "rb").read()).hexdigest())' "$1"
}
contract_id() {  # sha256(账户 + 写成小端 u64 的 nonce + sha256(代码))
  python3 -c 'import hashlib, sys
code = hashlib.sha256(open(sys.argv[3], "rb").read()).digest()
seed = bytes.fromhex(sys.argv[1]) + int(sys.argv[2]).to_bytes(8, "little") + code
print(hashlib.sha256(seed).hexdigest())' "$@"
}
brief() {  # --wait 结果中本教程要读的部分
  jq '{nonce, op_id, status: .status.status, block: .status.block.height,
    gas_used: .status.receipt.gas_used, error: .status.receipt.error,
    output: .status.receipt.output}' "$@"
}

source ./helpers.sh
export KSANA_RPC=https://signet.ksana.network/rpc
KSA=0000000000000000000000000000000000000000000000000000000000000000

ksana-cli --chain signet key alice.key
ACCOUNT=$(ksana-cli --chain signet key alice.key | jq -r .account)
curl -sS https://signet.ksana.network/faucet -H 'content-type: application/json' \
  --data '{"to": "tb1p6z9g9hz82q62tuvtkkymaq6rguhx0xttsvrkfzyme0k39cj9zzlsk7pwe9"}' | jq

INIT=$(enc_string "Tutorial Token")$(enc_string TUT)08$(enc_u128 100000000000000)
echo $INIT
ksana-cli deploy --key alice.key --code $W/token.wasm --init-args $INIT \
  --fee-token 1 --wait | tee token.json | brief

TOKEN=$(contract_id $ACCOUNT $(jq -r .nonce token.json) $W/token.wasm)
echo $TOKEN
jq -r '.status.receipt.events[0].contract' token.json

ksana-cli query --contract $TOKEN --method metadata
ksana-cli query --contract $TOKEN --method balance_of --args $ACCOUNT | jq -r .output

ksana-cli deploy --key alice.key --code $W/amm.wasm --init-args 00${TOKEN}01${KSA} \
  --fee-token 1 --wait | tee pool.json | brief
POOL=$(contract_id $ACCOUNT $(jq -r .nonce pool.json) $W/amm.wasm)
echo $POOL

ksana-cli call --key alice.key --contract $TOKEN --method approve \
  --args $POOL$(enc_u128 10000000000000) --fee-token 1 --wait | tee approve.json | brief

ksana-cli call --key alice.key --contract $POOL --method add_liquidity \
  --args $(enc_u128 10000000000000)$(enc_u128 5000000000) --fund 5000000000 \
  --fee-token 1 --wait | tee add.json | brief
dec_u128 $(jq -r .status.receipt.output add.json)

QUOTE=$(ksana-cli query --contract $POOL --method swap \
  --args $KSA$(enc_u128 100000000)$(enc_u128 1) --fund 100000000 --caller $ACCOUNT \
  | jq -r .output)
dec_u128 $QUOTE
MIN_OUT=$(( $(dec_u128 $QUOTE) * 99 / 100 ))
echo $MIN_OUT

ksana-cli call --key alice.key --contract $POOL --method swap \
  --args $KSA$(enc_u128 100000000)$(enc_u128 $MIN_OUT) --fund 100000000 \
  --fee-token 1 --wait | tee swap1.json | brief

ksana-cli call --key alice.key --contract $TOKEN --method approve \
  --args $POOL$(enc_u128 100000000000) --fee-token 1 --wait | tee approve2.json | brief
QUOTE=$(ksana-cli query --contract $POOL --method swap \
  --args $TOKEN$(enc_u128 100000000000)$(enc_u128 1) --caller $ACCOUNT | jq -r .output)
dec_u128 $QUOTE
MIN_OUT=$(( $(dec_u128 $QUOTE) * 99 / 100 ))
echo $MIN_OUT

ksana-cli call --key alice.key --contract $POOL --method swap \
  --args $TOKEN$(enc_u128 100000000000)$(enc_u128 $MIN_OUT) \
  --fee-token 1 --wait | tee swap2.json | brief

dec_u128 $(ksana-cli query --contract $POOL --method shares_of --args $ACCOUNT | jq -r .output)
ksana-cli call --key alice.key --contract $POOL --method remove_liquidity \
  --args $(enc_u128 111803398874) --fee-token 1 --wait | tee remove.json | brief
dec_u128 $(jq -r .status.receipt.output remove.json)

ksana-cli deploy --key alice.key --code $W/amm_factory.wasm \
  --init-args $(code_hash $W/amm.wasm) --fee-token 1 --wait | tee factory.json | brief
FACTORY=$(contract_id $ACCOUNT $(jq -r .nonce factory.json) $W/amm_factory.wasm)
echo $FACTORY

ksana-cli call --key alice.key --contract $FACTORY --method create_pair \
  --args 00${TOKEN}01${KSA} --fee-token 1 --wait | tee pair.json | brief
PAIR=$(jq -r .status.receipt.output pair.json)
ksana-cli query --contract $FACTORY --method get_pair --args 01${KSA}00${TOKEN} | jq -r .output

ksana-cli op $(jq -r .op_id token.json) | jq '{status, block: .block.height}'
ksana-cli settlement 264 | jq '{status, txid_rpc, confirmed, settled, btc_final}'