Files
bdeb1337 d7342d6096 feat: workout-suggester, weather-aware workouts from a local Gemma
Go + Templ + HTMX app that checks the weather (Open-Meteo, MET Norway
fallback), scores run/ride/walk with plain rules, and has a local
open-weight model (Gemma 4 E2B via any OpenAI-compatible server) write
the plan. Routes are loops from your door (BRouter) plus signposted
OpenStreetMap routes (Overpass), with GPX export.
2026-10-11 19:29:58 +02:00

89 lines
3.0 KiB
Go

// Package config loads workout-suggester settings from the environment and
// an optional .env file.
package config
import (
"bufio"
"fmt"
"os"
"strings"
"time"
)
// Config holds all runtime settings.
type Config struct {
Addr string // ADDR: where the web UI listens
BaseURL string // LLM_BASE_URL: OpenAI-compatible API root, e.g. http://127.0.0.1:8000/v1
APIKey string // LLM_API_KEY: optional bearer token for the model server
Model string // LLM_MODEL: model id; empty means "first model the server lists"
Timeout time.Duration // LLM_TIMEOUT: upper bound for a single reply
OverpassURL string // OVERPASS_URL: OpenStreetMap Overpass API endpoint
BRouterURL string // BROUTER_URL: BRouter endpoint for loops from your door; "-" disables
DefaultPlace string // DEFAULT_PLACE: prefilled town in the form
ForecastURL string // OPEN_METEO_URL: forecast endpoint (Open-Meteo is self-hostable)
GeocodeURL string // OPEN_METEO_GEOCODE_URL: place search endpoint
}
// Load reads the configuration from environment variables, applying defaults.
func Load() (Config, error) {
c := Config{
Addr: env("ADDR", "127.0.0.1:3000"),
BaseURL: strings.TrimRight(env("LLM_BASE_URL", "http://127.0.0.1:8000/v1"), "/"),
APIKey: os.Getenv("LLM_API_KEY"),
Model: os.Getenv("LLM_MODEL"),
Timeout: 3 * time.Minute,
OverpassURL: env("OVERPASS_URL", "https://overpass-api.de/api/interpreter"),
BRouterURL: env("BROUTER_URL", "https://brouter.de/brouter"),
DefaultPlace: os.Getenv("DEFAULT_PLACE"),
ForecastURL: env("OPEN_METEO_URL", "https://api.open-meteo.com/v1/forecast"),
GeocodeURL: env("OPEN_METEO_GEOCODE_URL", "https://geocoding-api.open-meteo.com/v1/search"),
}
if v := os.Getenv("LLM_TIMEOUT"); v != "" {
d, err := time.ParseDuration(v)
if err != nil {
return c, fmt.Errorf("LLM_TIMEOUT: %w", err)
}
c.Timeout = d
}
return c, nil
}
func env(key, fallback string) string {
if v, ok := os.LookupEnv(key); ok && v != "" {
return v
}
return fallback
}
// LoadEnvFile sets variables from a KEY=VALUE file. Variables that are
// already set in the environment win, so the real environment can override
// the file. Blank lines and lines starting with # are ignored; values may be
// wrapped in single or double quotes.
func LoadEnvFile(path string) error {
f, err := os.Open(path)
if err != nil {
return err
}
defer f.Close()
sc := bufio.NewScanner(f)
for n := 1; sc.Scan(); n++ {
line := strings.TrimSpace(sc.Text())
if line == "" || strings.HasPrefix(line, "#") {
continue
}
key, val, ok := strings.Cut(strings.TrimPrefix(line, "export "), "=")
if !ok {
return fmt.Errorf("%s:%d: expected KEY=VALUE", path, n)
}
key, val = strings.TrimSpace(key), strings.TrimSpace(val)
if len(val) >= 2 && (val[0] == '"' || val[0] == '\'') && val[len(val)-1] == val[0] {
val = val[1 : len(val)-1]
}
if _, set := os.LookupEnv(key); !set {
os.Setenv(key, val)
}
}
return sc.Err()
}