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package main
import (
"fmt"
"io"
"os"
)
type Command interface {
Name() string
Init(args []string) error
Run(stdin io.Reader, stdout io.Writer) error
}
func main() {
if len(os.Args) < 2 {
printHelp()
os.Exit(1)
}
cmdName := os.Args[1]
args := os.Args[2:]
if cmdName == "help" || cmdName == "--help" || cmdName == "-h" {
printHelp()
os.Exit(0)
}
var cmd Command
switch cmdName {
case "scrape":
cmd = &ScrapeCommand{}
case "serve":
cmd = &ServeCommand{}
default:
fmt.Fprintf(os.Stderr, "Unknown command: %s\n\n", cmdName)
printHelp()
os.Exit(1)
}
if err := cmd.Init(args); err != nil {
fmt.Fprintf(os.Stderr, "Error initializing %s: %v\n", cmdName, err)
os.Exit(1)
}
if err := cmd.Run(os.Stdin, os.Stdout); err != nil {
fmt.Fprintf(os.Stderr, "Error running %s: %v\n", cmdName, err)
os.Exit(1)
}
}
func printHelp() {
fmt.Printf(`abvjt <command> [arguments]
Journal abbreviation lookup service.
Commands:
scrape Scrape WOS journal abbreviations into SQLite DB
serve Start HTTP server for web UI and API
help Show this help message
Usage:
abvjt scrape --db data/abvjt.db
abvjt serve --port 8080 --db data/abvjt.db
`)
}
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