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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| package interpreter | ||
|
|
||
| import ( | ||
| "math/big" | ||
|
|
||
| "github.com/formancehq/numscript/internal/parser" | ||
| ) | ||
|
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||
| func meta( | ||
| s *programState, | ||
| rng parser.Range, | ||
| args []Value, | ||
| ) (string, InterpreterError) { | ||
| // TODO more precise location | ||
| p := NewArgsParser(args) | ||
| account := parseArg(p, rng, expectAccount) | ||
| key := parseArg(p, rng, expectString) | ||
| err := p.parse() | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| meta, fetchMetaErr := s.Store.GetAccountsMetadata(s.ctx, MetadataQuery{ | ||
| *account: []string{*key}, | ||
| }) | ||
| if fetchMetaErr != nil { | ||
| return "", QueryMetadataError{WrappedError: fetchMetaErr} | ||
| } | ||
| s.CachedAccountsMeta = meta | ||
|
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| // body | ||
| accountMeta := s.CachedAccountsMeta[*account] | ||
| value, ok := accountMeta[*key] | ||
|
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| if !ok { | ||
| return "", MetadataNotFound{Account: *account, Key: *key, Range: rng} | ||
| } | ||
|
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| return value, nil | ||
| } | ||
|
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| func balance( | ||
| s *programState, | ||
| r parser.Range, | ||
| args []Value, | ||
| ) (*Monetary, InterpreterError) { | ||
| // TODO more precise args range location | ||
| p := NewArgsParser(args) | ||
| account := parseArg(p, r, expectAccount) | ||
| asset := parseArg(p, r, expectAsset) | ||
| err := p.parse() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // body | ||
|
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| balance, err := getBalance(s, *account, *asset) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| if balance.Cmp(big.NewInt(0)) == -1 { | ||
| return nil, NegativeBalanceError{ | ||
| Account: *account, | ||
| Amount: *balance, | ||
| } | ||
| } | ||
|
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| balanceCopy := new(big.Int).Set(balance) | ||
|
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| m := Monetary{ | ||
| Asset: Asset(*asset), | ||
| Amount: MonetaryInt(*balanceCopy), | ||
| } | ||
| return &m, nil | ||
| } | ||
|
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| func overdraft( | ||
| s *programState, | ||
| r parser.Range, | ||
| args []Value, | ||
| ) (*Monetary, InterpreterError) { | ||
| if !s.OverdraftFunctionFeatureFlag { | ||
| return nil, ExperimentalFeature{FlagName: ExperimentalOverdraftFunctionFeatureFlag} | ||
| } | ||
|
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||
| // TODO more precise args range location | ||
| p := NewArgsParser(args) | ||
| account := parseArg(p, r, expectAccount) | ||
| asset := parseArg(p, r, expectAsset) | ||
| err := p.parse() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| balance_, err := getBalance(s, *account, *asset) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| balanceIsPositive := balance_.Cmp(big.NewInt(0)) == 1 | ||
| if balanceIsPositive { | ||
| return &Monetary{ | ||
| Amount: NewMonetaryInt(0), | ||
| Asset: Asset(*asset), | ||
| }, nil | ||
| } | ||
|
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| overdraft := new(big.Int).Neg(balance_) | ||
| return &Monetary{ | ||
| Amount: MonetaryInt(*overdraft), | ||
| Asset: Asset(*asset), | ||
| }, nil | ||
| } | ||
|
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| // Utility function to get the balance | ||
| func getBalance( | ||
| s *programState, | ||
| account string, | ||
| asset string, | ||
| ) (*big.Int, InterpreterError) { | ||
| s.batchQuery(account, asset) | ||
| fetchBalanceErr := s.runBalancesQuery() | ||
| if fetchBalanceErr != nil { | ||
| return nil, QueryBalanceError{WrappedError: fetchBalanceErr} | ||
| } | ||
| balance := s.getCachedBalance(account, asset) | ||
| return balance, nil | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| package interpreter | ||
|
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||
| import "github.com/formancehq/numscript/internal/parser" | ||
|
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| func setTxMeta(st *programState, r parser.Range, args []Value) InterpreterError { | ||
| p := NewArgsParser(args) | ||
| key := parseArg(p, r, expectString) | ||
| meta := parseArg(p, r, expectAnything) | ||
| err := p.parse() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| st.TxMeta[*key] = *meta | ||
| return nil | ||
| } | ||
|
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| func setAccountMeta(st *programState, r parser.Range, args []Value) InterpreterError { | ||
| p := NewArgsParser(args) | ||
| account := parseArg(p, r, expectAccount) | ||
| key := parseArg(p, r, expectString) | ||
| meta := parseArg(p, r, expectAnything) | ||
| err := p.parse() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| accountMeta := defaultMapGet(st.SetAccountsMeta, *account, func() AccountMetadata { | ||
| return AccountMetadata{} | ||
| }) | ||
|
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| accountMeta[*key] = (*meta).String() | ||
|
|
||
| return nil | ||
| } |
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