Initial configuration support.

.vscode/launch.json

@@ -5,14 +5,16 @@
     "version": "0.2.0",
     "configurations": [
         {
-            "name": "Launch file",
+            "name": "Launch",
             "type": "go",
             "request": "launch",
             "mode": "debug",
             "console": "integratedTerminal",
-            "program": "${file}"
+            "program": "${workspaceFolder}/moonmath.go",
-        }
+            "args": [
-
+                "--config-file",
-
+                "moonmath.toml"
+            ]
+        }
     ]
 }

.vscode/settings.json

@@ -1,5 +1,6 @@
 {
     "cSpell.words": [
+        "alecthomas",
         "bitcoinity",
         "Bitfinex",
         "Bitstamp",
@@ -7,6 +8,8 @@
         "CDPR",
         "charmbracelet",
         "Coindesk",
+        "knadh",
+        "koanf",
         "lipgloss",
         "moonmath",
         "OHLC",

coindesk/model.go

@@ -11,10 +11,328 @@ import (
 type Asset string
 
 const (
-	// BTC is the Bitcoin asset.
 	BTC      Asset = "BTC"
-	// ETH is the Ethereum asset.
 	ETH      Asset = "ETH"
+	XRP      Asset = "XRP"
+	BCH      Asset = "BCH"
+	EOS      Asset = "EOS"
+	XLM      Asset = "XLM"
+	LTC      Asset = "LTC"
+	ADA      Asset = "ADA"
+	XMR      Asset = "XMR"
+	DASH     Asset = "DASH"
+	IOTA     Asset = "IOTA"
+	TRX      Asset = "TRX"
+	NEO      Asset = "NEO"
+	ETC      Asset = "ETC"
+	XEM      Asset = "XEM"
+	ZEC      Asset = "ZEC"
+	BTG      Asset = "BTG"
+	LSK      Asset = "LSK"
+	QTUM     Asset = "QTUM"
+	BSV      Asset = "BSV"
+	DOGE     Asset = "DOGE"
+	DCR      Asset = "DCR"
+	USDT     Asset = "USDT"
+	USDC     Asset = "USDC"
+	LINK     Asset = "LINK"
+	XTZ      Asset = "XTZ"
+	ZRX      Asset = "ZRX"
+	DAI      Asset = "DAI"
+	BAT      Asset = "BAT"
+	OXT      Asset = "OXT"
+	ALGO     Asset = "ALGO"
+	ATOM     Asset = "ATOM"
+	KNC      Asset = "KNC"
+	OMG      Asset = "OMG"
+	ANT      Asset = "ANT"
+	REP      Asset = "REP"
+	BAND     Asset = "BAND"
+	BTT      Asset = "BTT"
+	MANA     Asset = "MANA"
+	FET      Asset = "FET"
+	ICX      Asset = "ICX"
+	KAVA     Asset = "KAVA"
+	LRC      Asset = "LRC"
+	MKR      Asset = "MKR"
+	MLN      Asset = "MLN"
+	NANO     Asset = "NANO"
+	NMR      Asset = "NMR"
+	PAXG     Asset = "PAXG"
+	USDP     Asset = "USDP"
+	SC       Asset = "SC"
+	STORJ    Asset = "STORJ"
+	WAVES    Asset = "WAVES"
+	FIL      Asset = "FIL"
+	CVC      Asset = "CVC"
+	DNT      Asset = "DNT"
+	REN      Asset = "REN"
+	BNT      Asset = "BNT"
+	WBTC     Asset = "WBTC"
+	GRT      Asset = "GRT"
+	UNI      Asset = "UNI"
+	DOT      Asset = "DOT"
+	YFI      Asset = "YFI"
+	AAVE     Asset = "AAVE"
+	MATIC    Asset = "MATIC"
+	AMP      Asset = "AMP"
+	CELO     Asset = "CELO"
+	COMP     Asset = "COMP"
+	CRV      Asset = "CRV"
+	RLC      Asset = "RLC"
+	KSM      Asset = "KSM"
+	NKN      Asset = "NKN"
+	SHIB     Asset = "SHIB"
+	SKL      Asset = "SKL"
+	SNX      Asset = "SNX"
+	LUNC     Asset = "LUNC"
+	UMA      Asset = "UMA"
+	ICP      Asset = "ICP"
+	SOL      Asset = "SOL"
+	AVAX     Asset = "AVAX"
+	UST      Asset = "UST"
+	ENJ      Asset = "ENJ"
+	IOTX     Asset = "IOTX"
+	AXS      Asset = "AXS"
+	XYO      Asset = "XYO"
+	SUSHI    Asset = "SUSHI"
+	ANKR     Asset = "ANKR"
+	CHZ      Asset = "CHZ"
+	LPT      Asset = "LPT"
+	COTI     Asset = "COTI"
+	KEEP     Asset = "KEEP"
+	SAND     Asset = "SAND"
+	GALA     Asset = "GALA"
+	APE      Asset = "APE"
+	CRO      Asset = "CRO"
+	ACHP     Asset = "ACHP"
+	JASMY    Asset = "JASMY"
+	REQ      Asset = "REQ"
+	SLP      Asset = "SLP"
+	NEAR     Asset = "NEAR"
+	MBOX     Asset = "MBOX"
+	POLIS    Asset = "POLIS"
+	MOVR     Asset = "MOVR"
+	POLS     Asset = "POLS"
+	QUICK    Asset = "QUICK"
+	MINA     Asset = "MINA"
+	IMX      Asset = "IMX"
+	XEC      Asset = "XEC"
+	NEXO     Asset = "NEXO"
+	RUNE     Asset = "RUNE"
+	QNT      Asset = "QNT"
+	VET      Asset = "VET"
+	CAKE     Asset = "CAKE"
+	BNB      Asset = "BNB"
+	THETA    Asset = "THETA"
+	HBAR     Asset = "HBAR"
+	FTM      Asset = "FTM"
+	RVN      Asset = "RVN"
+	ZIL      Asset = "ZIL"
+	DGB      Asset = "DGB"
+	FTT      Asset = "FTT"
+	ENS      Asset = "ENS"
+	WRX      Asset = "WRX"
+	WAXP     Asset = "WAXP"
+	EGLD     Asset = "EGLD"
+	BUSD     Asset = "BUSD"
+	CEL      Asset = "CEL"
+	OP       Asset = "OP"
+	LUNA     Asset = "LUNA"
+	RAY      Asset = "RAY"
+	FLOW     Asset = "FLOW"
+	AUDIO    Asset = "AUDIO"
+	CKB      Asset = "CKB"
+	VGX      Asset = "VGX"
+	YGG      Asset = "YGG"
+	CHR      Asset = "CHR"
+	STMX     Asset = "STMX"
+	SXP      Asset = "SXP"
+	INJ      Asset = "INJ"
+	JOE      Asset = "JOE"
+	POLY     Asset = "POLY"
+	STX      Asset = "STX"
+	SFP      Asset = "SFP"
+	FARM     Asset = "FARM"
+	XVG      Asset = "XVG"
+	CLV      Asset = "CLV"
+	WOO      Asset = "WOO"
+	GLMR     Asset = "GLMR"
+	STEEM    Asset = "STEEM"
+	RARE     Asset = "RARE"
+	IDEX     Asset = "IDEX"
+	SRM      Asset = "SRM"
+	PYR      Asset = "PYR"
+	MIR      Asset = "MIR"
+	SYS      Asset = "SYS"
+	ALPACA   Asset = "ALPACA"
+	QSP      Asset = "QSP"
+	SCRT     Asset = "SCRT"
+	SUN      Asset = "SUN"
+	APT      Asset = "APT"
+	MASK     Asset = "MASK"
+	DYDX     Asset = "DYDX"
+	CVX      Asset = "CVX"
+	GMT      Asset = "GMT"
+	CTSI     Asset = "CTSI"
+	METIS    Asset = "METIS"
+	FORTH    Asset = "FORTH"
+	RBN      Asset = "RBN"
+	SAMO     Asset = "SAMO"
+	SPELL    Asset = "SPELL"
+	LDO      Asset = "LDO"
+	ARB      Asset = "ARB"
+	BLUR     Asset = "BLUR"
+	GAS      Asset = "GAS"
+	RACA     Asset = "RACA"
+	BABYDOGE Asset = "BABYDOGE"
+	FLOKI    Asset = "FLOKI"
+	HOT      Asset = "HOT"
+	BFC      Asset = "BFC"
+	KISHU    Asset = "KISHU"
+	ELON     Asset = "ELON"
+	SAITAMA  Asset = "SAITAMA"
+	REEF     Asset = "REEF"
+	CEEK     Asset = "CEEK"
+	ATLAS    Asset = "ATLAS"
+	LOOKS    Asset = "LOOKS"
+	WIN      Asset = "WIN"
+	ONE      Asset = "ONE"
+	DENT     Asset = "DENT"
+	GST      Asset = "GST"
+	TWT      Asset = "TWT"
+	HNT      Asset = "HNT"
+	AGLD     Asset = "AGLD"
+	BTRST    Asset = "BTRST"
+	ETHW     Asset = "ETHW"
+	ILV      Asset = "ILV"
+	RARI     Asset = "RARI"
+	STG      Asset = "STG"
+	SYN      Asset = "SYN"
+	TOKE     Asset = "TOKE"
+	BLZ      Asset = "BLZ"
+	FLR      Asset = "FLR"
+	FIS      Asset = "FIS"
+	GNS      Asset = "GNS"
+	ID       Asset = "ID"
+	PEPE     Asset = "PEPE"
+	DIA      Asset = "DIA"
+	TLM      Asset = "TLM"
+	XCN      Asset = "XCN"
+	BIT      Asset = "BIT"
+	RPL      Asset = "RPL"
+	RNDR     Asset = "RNDR"
+	ONEINCH  Asset = "1INCH"
+	BAL      Asset = "BAL"
+	T        Asset = "T"
+	GNO      Asset = "GNO"
+	ASTR     Asset = "ASTR"
+	GLM      Asset = "GLM"
+	OCEAN    Asset = "OCEAN"
+	BICO     Asset = "BICO"
+	CELR     Asset = "CELR"
+	LQTY     Asset = "LQTY"
+	TRAC     Asset = "TRAC"
+	ZEN      Asset = "ZEN"
+	API3     Asset = "API3"
+	PLA      Asset = "PLA"
+	AXL      Asset = "AXL"
+	HFT      Asset = "HFT"
+	MC       Asset = "MC"
+	C98      Asset = "C98"
+	GAL      Asset = "GAL"
+	GTC      Asset = "GTC"
+	RAD      Asset = "RAD"
+	POWR     Asset = "POWR"
+	POND     Asset = "POND"
+	ALICE    Asset = "ALICE"
+	TRU      Asset = "TRU"
+	OGN      Asset = "OGN"
+	DAR      Asset = "DAR"
+	BADGER   Asset = "BADGER"
+	GHST     Asset = "GHST"
+	LCX      Asset = "LCX"
+	ARPA     Asset = "ARPA"
+	MXC      Asset = "MXC"
+	PERP     Asset = "PERP"
+	LOKA     Asset = "LOKA"
+	BOBA     Asset = "BOBA"
+	BOND     Asset = "BOND"
+	ALCX     Asset = "ALCX"
+	KP3R     Asset = "KP3R"
+	TON      Asset = "TON"
+	AR       Asset = "AR"
+	AVA      Asset = "AVA"
+	BONE     Asset = "BONE"
+	BONK     Asset = "BONK"
+	CORE     Asset = "CORE"
+	CSPR     Asset = "CSPR"
+	DG       Asset = "DG"
+	ERN      Asset = "ERN"
+	FXS      Asset = "FXS"
+	GMX      Asset = "GMX"
+	GT       Asset = "GT"
+	GUSD     Asset = "GUSD"
+	HMT      Asset = "HMT"
+	HT       Asset = "HT"
+	KCS      Asset = "KCS"
+	KLAY     Asset = "KLAY"
+	LEO      Asset = "LEO"
+	MPL      Asset = "MPL"
+	OKB      Asset = "OKB"
+	PIT      Asset = "PIT"
+	OSMO     Asset = "OSMO"
+	RLY      Asset = "RLY"
+	SANTOS   Asset = "SANTOS"
+	SUI      Asset = "SUI"
+	SWEAT    Asset = "SWEAT"
+	TUSD     Asset = "TUSD"
+	TVK      Asset = "TVK"
+	UNFI     Asset = "UNFI"
+	USDD     Asset = "USDD"
+	VLX      Asset = "VLX"
+	WEMIX    Asset = "WEMIX"
+	XDC      Asset = "XDC"
+	XRD      Asset = "XRD"
+	FB       Asset = "FB"
+	BRISE    Asset = "BRISE"
+	KAS      Asset = "KAS"
+	XEN      Asset = "XEN"
+	HAM      Asset = "HAM"
+	TAMA     Asset = "TAMA"
+	KDA      Asset = "KDA"
+	CFX      Asset = "CFX"
+	VRA      Asset = "VRA"
+	BDX      Asset = "BDX"
+	RDNT     Asset = "RDNT"
+	WLD      Asset = "WLD"
+	AGIX     Asset = "AGIX"
+	PYUSD    Asset = "PYUSD"
+	MOON     Asset = "MOON"
+	SEI      Asset = "SEI"
+	AKT      Asset = "AKT"
+	MAGIC    Asset = "MAGIC"
+	SNT      Asset = "SNT"
+	ALPHA    Asset = "ALPHA"
+	ALI      Asset = "ALI"
+	CQT      Asset = "CQT"
+	HIGH     Asset = "HIGH"
+	AERGO    Asset = "AERGO"
+	GODS     Asset = "GODS"
+	ZBC      Asset = "ZBC"
+	ACA      Asset = "ACA"
+	MDT      Asset = "MDT"
+	LIT      Asset = "LIT"
+	QI       Asset = "QI"
+	AURORA   Asset = "AURORA"
+	TOMI     Asset = "TOMI"
+	XCH      Asset = "XCH"
+	MANTA    Asset = "MANTA"
+	PYTH     Asset = "PYTH"
+	STRK     Asset = "STRK"
+	ETHFI    Asset = "ETHFI"
+	TIA      Asset = "TIA"
+	EETH     Asset = "EETH"
 )
 
 // Response represents the general top-level format of Coindesk API responses.

config/config.go

@@ -0,0 +1,79 @@
+package config
+
+import (
+	"slices"
+	"time"
+
+	"code.humancabbage.net/sam/moonmath/coindesk"
+	"code.humancabbage.net/sam/moonmath/moon"
+	"github.com/knadh/koanf/parsers/toml"
+	"github.com/knadh/koanf/providers/file"
+	"github.com/knadh/koanf/providers/structs"
+	"github.com/knadh/koanf/v2"
+)
+
+var k = koanf.New(".")
+
+func Load(path string) (data Data, err error) {
+	err = k.Load(structs.Provider(Default, "koanf"), nil)
+	if err != nil {
+		return
+	}
+	if path != "" {
+		err = k.Load(file.Provider(path), toml.Parser())
+		if err != nil {
+			return
+		}
+	}
+	err = k.Unmarshal("", &data)
+	if err != nil {
+		return
+	}
+
+	return
+}
+
+var Default = Data{
+	Asset:         coindesk.BTC,
+	Goals:         moon.DefaultGoals,
+	ConstantBases: moon.DefaultConstantBases,
+	RelativeBases: moon.DefaultRelativeBases,
+}
+
+type Data struct {
+	Asset         coindesk.Asset      `koanf:"asset"`
+	Goals         []moon.Goal         `koanf:"goals"`
+	ConstantBases []moon.ConstantBase `koanf:"constantBases"`
+	RelativeBases []moon.RelativeBase `koanf:"relativeBases"`
+}
+
+type Goal struct {
+	Name  string  `koanf:"name"`
+	Value float64 `koanf:"value"`
+}
+
+// GetBases returns the concatenation of the constant and relative bases, sorted
+// from most recent to least recent in time.
+func GetBases(d *Data) (bases []moon.Base) {
+	for _, b := range d.ConstantBases {
+		bases = append(bases, b)
+	}
+	for _, b := range d.RelativeBases {
+		bases = append(bases, b)
+	}
+	now := time.Now()
+	slices.SortFunc(bases, func(a, b moon.Base) int {
+		aTime := a.From(now)
+		bTime := b.From(now)
+		aFirst := aTime.Before(bTime)
+		bFirst := bTime.Before(aTime)
+		switch {
+		case aFirst:
+			return 1
+		case bFirst:
+			return -1
+		}
+		return 0
+	})
+	return
+}

config/eth.toml

@@ -0,0 +1,25 @@
+asset = "ETH"
+
+[[goals]]
+name = "$5k"
+value = 5000
+
+[[goals]]
+name = "$7.5k"
+value = 7500
+
+[[goals]]
+name = "$10k"
+value = 10000
+
+[[goals]]
+name = "$15k"
+value = 15000
+
+[[goals]]
+name = "$20k"
+value = 15000
+
+[[goals]]
+name = "$25k"
+value = 25000

go.mod

@@ -12,16 +12,28 @@ require (
 )
 
 require (
+	github.com/alecthomas/kong v0.9.0 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
 	github.com/containerd/console v1.0.4 // indirect
+	github.com/fatih/structs v1.1.0 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/go-viper/mapstructure/v2 v2.0.0-alpha.1 // indirect
+	github.com/knadh/koanf/maps v0.1.1 // indirect
+	github.com/knadh/koanf/parsers/toml v0.1.0 // indirect
+	github.com/knadh/koanf/providers/file v0.1.0 // indirect
+	github.com/knadh/koanf/providers/structs v0.1.0 // indirect
+	github.com/knadh/koanf/v2 v2.1.0 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
 	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
 	github.com/muesli/cancelreader v0.2.2 // indirect
 	github.com/muesli/reflow v0.3.0 // indirect
 	github.com/muesli/termenv v0.15.2 // indirect
+	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect

go.sum

@@ -1,3 +1,5 @@
+github.com/alecthomas/kong v0.9.0 h1:G5diXxc85KvoV2f0ZRVuMsi45IrBgx9zDNGNj165aPA=
+github.com/alecthomas/kong v0.9.0/go.mod h1:Y47y5gKfHp1hDc7CH7OeXgLIpp+Q2m1Ni0L5s3bI8Os=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
 github.com/carlmjohnson/requests v0.23.5 h1:NPANcAofwwSuC6SIMwlgmHry2V3pLrSqRiSBKYbNHHA=
@@ -13,6 +15,22 @@ github.com/containerd/console v1.0.4/go.mod h1:YynlIjWYF8myEu6sdkwKIvGQq+cOckRm6
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/fatih/structs v1.1.0 h1:Q7juDM0QtcnhCpeyLGQKyg4TOIghuNXrkL32pHAUMxo=
+github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
+github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
+github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
+github.com/go-viper/mapstructure/v2 v2.0.0-alpha.1 h1:TQcrn6Wq+sKGkpyPvppOz99zsMBaUOKXq6HSv655U1c=
+github.com/go-viper/mapstructure/v2 v2.0.0-alpha.1/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/knadh/koanf/maps v0.1.1 h1:G5TjmUh2D7G2YWf5SQQqSiHRJEjaicvU0KpypqB3NIs=
+github.com/knadh/koanf/maps v0.1.1/go.mod h1:npD/QZY3V6ghQDdcQzl1W4ICNVTkohC8E73eI2xW4yI=
+github.com/knadh/koanf/parsers/toml v0.1.0 h1:S2hLqS4TgWZYj4/7mI5m1CQQcWurxUz6ODgOub/6LCI=
+github.com/knadh/koanf/parsers/toml v0.1.0/go.mod h1:yUprhq6eo3GbyVXFFMdbfZSo928ksS+uo0FFqNMnO18=
+github.com/knadh/koanf/providers/file v0.1.0 h1:fs6U7nrV58d3CFAFh8VTde8TM262ObYf3ODrc//Lp+c=
+github.com/knadh/koanf/providers/file v0.1.0/go.mod h1:rjJ/nHQl64iYCtAW2QQnF0eSmDEX/YZ/eNFj5yR6BvA=
+github.com/knadh/koanf/providers/structs v0.1.0 h1:wJRteCNn1qvLtE5h8KQBvLJovidSdntfdyIbbCzEyE0=
+github.com/knadh/koanf/providers/structs v0.1.0/go.mod h1:sw2YZ3txUcqA3Z27gPlmmBzWn1h8Nt9O6EP/91MkcWE=
+github.com/knadh/koanf/v2 v2.1.0 h1:eh4QmHHBuU8BybfIJ8mB8K8gsGCD/AUQTdwGq/GzId8=
+github.com/knadh/koanf/v2 v2.1.0/go.mod h1:4mnTRbZCK+ALuBXHZMjDfG9y714L7TykVnZkXbMU3Es=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
@@ -22,6 +40,10 @@ github.com/mattn/go-localereader v0.0.1/go.mod h1:8fBrzywKY7BI3czFoHkuzRoWE9C+Ei
 github.com/mattn/go-runewidth v0.0.12/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
 github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
 github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mitchellh/copystructure v1.2.0 h1:vpKXTN4ewci03Vljg/q9QvCGUDttBOGBIa15WveJJGw=
+github.com/mitchellh/copystructure v1.2.0/go.mod h1:qLl+cE2AmVv+CoeAwDPye/v+N2HKCj9FbZEVFJRxO9s=
+github.com/mitchellh/reflectwalk v1.0.2 h1:G2LzWKi524PWgd3mLHV8Y5k7s6XUvT0Gef6zxSIeXaQ=
+github.com/mitchellh/reflectwalk v1.0.2/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
 github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 h1:ZK8zHtRHOkbHy6Mmr5D264iyp3TiX5OmNcI5cIARiQI=
 github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6/go.mod h1:CJlz5H+gyd6CUWT45Oy4q24RdLyn7Md9Vj2/ldJBSIo=
 github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELUXHmA=
@@ -30,6 +52,8 @@ github.com/muesli/reflow v0.3.0 h1:IFsN6K9NfGtjeggFP+68I4chLZV2yIKsXJFNZ+eWh6s=
 github.com/muesli/reflow v0.3.0/go.mod h1:pbwTDkVPibjO2kyvBQRBxTWEEGDGq0FlB1BIKtnHY/8=
 github.com/muesli/termenv v0.15.2 h1:GohcuySI0QmI3wN8Ok9PtKGkgkFIk7y6Vpb5PvrY+Wo=
 github.com/muesli/termenv v0.15.2/go.mod h1:Epx+iuz8sNs7mNKhxzH4fWXGNpZwUaJKRS1noLXviQ8=
+github.com/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
+github.com/pelletier/go-toml v1.9.5/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=

moon/moon.go

@@ -10,18 +10,17 @@ import (
 )
 
 type Math struct {
+	Asset        coindesk.Asset
 	CurrentPrice coindesk.Price
 	Columns      []Column
-	Goals        []float64
+	Goals        []Goal
 }
 
-func NewMath(goals []float64, bases []Base) (m Math) {
+func NewMath(asset coindesk.Asset, goals []Goal, bases []Base) (m Math) {
-	if goals == nil {
+	if goals == nil || bases == nil {
-		goals = DefaultGoals
+		panic("goals and bases must be set")
-	}
-	if bases == nil {
-		bases = DefaultBases
 	}
+	m.Asset = asset
 	m.Goals = goals
 	m.Columns = make([]Column, len(bases))
 	for i := range bases {
@@ -43,7 +42,7 @@ type Projection struct {
 }
 
 func ProjectDates(
-	from time.Time, currentPrice float64, cdpr float64, goals []float64,
+	from time.Time, currentPrice float64, cdpr float64, goals []Goal,
 ) (p Projection) {
 	if cdpr <= 0 {
 		return
@@ -51,7 +50,7 @@ func ProjectDates(
 	logP := math.Log(currentPrice)
 	logR := math.Log(cdpr)
 	for _, goal := range goals {
-		daysToGo := (math.Log(goal) - logP) / logR
+		daysToGo := (math.Log(goal.Value) - logP) / logR
 		date := from.Add(time.Hour * 24 * time.Duration(daysToGo))
 		p.Dates = append(p.Dates, date)
 	}
@@ -60,11 +59,11 @@ func ProjectDates(
 }
 
 func (m *Math) Refresh(ctx context.Context) (err error) {
-	resp, err := coindesk.GetAssetTickers(ctx, coindesk.BTC)
+	resp, err := coindesk.GetAssetTickers(ctx, m.Asset)
 	if err != nil {
 		return
 	}
-	m.CurrentPrice = resp.Data[coindesk.BTC].OHLC.Closing
+	m.CurrentPrice = resp.Data[m.Asset].OHLC.Closing
 
 	tasks := pool.New().WithErrors()
 	tasks.WithMaxGoroutines(len(m.Columns))
@@ -77,7 +76,7 @@ func (m *Math) Refresh(ctx context.Context) (err error) {
 			c.StartingDate = c.Base.From(now)
 			nextDay := c.StartingDate.Add(time.Hour * 24)
 			resp, err := coindesk.GetPriceValues(ctx,
-				coindesk.BTC, c.StartingDate, nextDay)
+				m.Asset, c.StartingDate, nextDay)
 			if err != nil {
 				return err
 			}
@@ -107,58 +106,66 @@ type Column struct {
 	Projections   Projection
 }
 
-var DefaultGoals = []float64{
+var DefaultGoals = []Goal{
-	100000,
+	{"$100k", 100000},
-	150000,
+	{"$150k", 150000},
-	200000,
+	{"$200k", 200000},
-	250000,
+	{"$250k", 250000},
-	300000,
+	{"$300k", 300000},
-	500000,
+	{"$500k", 500000},
-	1000000,
+	{"$1m", 1000000},
 }
 
-var DefaultBases = []Base{
+var DefaultConstantBases = []ConstantBase{
-	RelativeBase{"Month", time.Duration(-30) * time.Hour * 24},
+	{"2020-", time.Unix(1577836800, 0)},
-	RelativeBase{"Quarter", time.Duration(-90) * time.Hour * 24},
+	{"2019-", time.Unix(1546300800, 0)},
-	RelativeBase{"Half-Year", time.Duration(-182) * time.Hour * 24},
+	{"2018-", time.Unix(1514764800, 0)},
-	RelativeBase{"Year", time.Duration(-365) * time.Hour * 24},
+	{"2017-", time.Unix(1483228800, 0)},
-	ConstantBase{"2020-", time.Unix(1577836800, 0)},
+}
-	ConstantBase{"2019-", time.Unix(1546300800, 0)},
+
-	ConstantBase{"2018-", time.Unix(1514764800, 0)},
+var DefaultRelativeBases = []RelativeBase{
-	ConstantBase{"2017-", time.Unix(1483228800, 0)},
+	{"Month", time.Duration(-30) * time.Hour * 24},
+	{"Quarter", time.Duration(-90) * time.Hour * 24},
+	{"Half-Year", time.Duration(-182) * time.Hour * 24},
+	{"Year", time.Duration(-365) * time.Hour * 24},
+}
+
+type Goal struct {
+	Name  string  `koanf:"name"`
+	Value float64 `koanf:"value"`
 }
 
 // Base is a temporal point of comparison used for price projection.
 type Base interface {
 	From(now time.Time) time.Time
-	Name() string
+	Label() string
 }
 
 // ConstantBase is a base that is a constant time, e.g. 2020-01-01.
 type ConstantBase struct {
-	name string
+	Name string    `koanf:"name"`
-	time time.Time
+	Time time.Time `koanf:"time"`
 }
 
 func (cb ConstantBase) From(_ time.Time) time.Time {
-	return cb.time
+	return cb.Time
 }
 
-func (cb ConstantBase) Name() string {
+func (cb ConstantBase) Label() string {
-	return cb.name
+	return cb.Name
 }
 
 // RelativeBase is a base that is relative, e.g. "90 days ago."
 type RelativeBase struct {
-	name   string
+	Name   string        `koanf:"name"`
-	offset time.Duration
+	Offset time.Duration `koanf:"offset"`
 }
 
 func (rb RelativeBase) From(now time.Time) time.Time {
-	then := now.Add(time.Duration(rb.offset))
+	then := now.Add(time.Duration(rb.Offset))
 	return then
 }
 
-func (rb RelativeBase) Name() string {
+func (rb RelativeBase) Label() string {
-	return rb.name
+	return rb.Name
 }

moon/moon_test.go

@@ -11,13 +11,6 @@ func TestCDPR(t *testing.T) {
 }
 
 func TestProjection(t *testing.T) {
-	p := moon.ProjectDates(time.Now(), 68900, 1.0055, []float64{
+	p := moon.ProjectDates(time.Now(), 68900, 1.0055, moon.DefaultGoals)
-		100000,
-		150000,
-		200000,
-		250000,
-		300000,
-		350000,
-	})
 	_ = p
 }

moonmath.go

@@ -4,14 +4,32 @@ import (
 	"fmt"
 	"os"
 
+	"code.humancabbage.net/sam/moonmath/config"
 	"code.humancabbage.net/sam/moonmath/tui"
+	"github.com/alecthomas/kong"
 	tea "github.com/charmbracelet/bubbletea"
 )
 
+var CLI struct {
+	ConfigFile string `help:"Path to TOML configuration file."`
+}
+
 func main() {
-	p := tea.NewProgram(tui.New())
+	ctx := kong.Parse(&CLI)
+	if ctx.Error != nil {
+		fail(ctx.Error)
+	}
+	cfg, err := config.Load(CLI.ConfigFile)
+	if err != nil {
+		fail(err)
+	}
+	p := tea.NewProgram(tui.New(cfg))
 	if _, err := p.Run(); err != nil {
+		fail(err)
+	}
+}
+
+func fail(err error) {
 	fmt.Printf("program error: %v\n", err)
 	os.Exit(1)
 }
-}

tui/tui.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"time"
 
+	"code.humancabbage.net/sam/moonmath/config"
 	"code.humancabbage.net/sam/moonmath/moon"
 	"github.com/charmbracelet/bubbles/table"
 	tea "github.com/charmbracelet/bubbletea"
@@ -22,13 +23,17 @@ type Model struct {
 	projections table.Model
 }
 
-func New() Model {
+func New(cfg config.Data) Model {
-	math := moon.NewMath(nil, nil)
+	math := moon.NewMath(
+		cfg.Asset,
+		cfg.Goals,
+		config.GetBases(&cfg))
 
 	tableStyle := table.DefaultStyles()
 	tableStyle.Selected = lipgloss.NewStyle()
 	prices := table.New(
 		table.WithColumns([]table.Column{
+			{Title: "Asset", Width: 6},
 			{Title: "Price", Width: 9},
 		}),
 		table.WithHeight(1),
@@ -40,7 +45,7 @@ func New() Model {
 	}
 	for i := range math.Columns {
 		projectionCols = append(projectionCols, table.Column{
-			Title: math.Columns[i].Base.Name(),
+			Title: math.Columns[i].Base.Label(),
 			Width: 10,
 		})
 	}
@@ -51,7 +56,7 @@ func New() Model {
 	projectionRows[0][0] = "Starting"
 	projectionRows[1][0] = "CDPR"
 	for i := range math.Goals {
-		projectionRows[i+2][0] = fmt.Sprintf("$%.0f", math.Goals[i])
+		projectionRows[i+2][0] = fmt.Sprintf("$%.0f", math.Goals[i].Value)
 	}
 	projections := table.New(
 		table.WithColumns(projectionCols),
@@ -95,7 +100,7 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 
 func refillPrice(m *Model) {
 	rows := []table.Row{
-		[]string{fmt.Sprintf("$%0.2f", m.math.CurrentPrice)},
+		[]string{string(m.math.Asset), fmt.Sprintf("$%0.2f", m.math.CurrentPrice)},
 	}
 	m.prices.SetRows(rows)
 }