jcmuller/picky

// Package chooser chooses what browser to use depending on a rule and URI
package chooser

import (
    "fmt"
    "os"
    "os/exec"

    "github.com/jcmuller/picky/rule"
)

type cfg interface {
    GetRules() []*rule.Rule
    GetDefaultRule() *rule.Rule
    GetDebug() bool
}

// Chooser thingie
type Chooser struct {
    arg    string
    config cfg
}

func handle(err error) {
    if err != nil {
        panic(err)
    }
}

// New instance of chooser
func New(config cfg, arg string) *Chooser {
    return &Chooser{
        arg:    arg,
        config: config,
    }
}

// GetRule returns the rule that matches the argument passed in
func (c *Chooser) GetRule() *rule.Rule {
    config := c.config

    for _, r := range config.GetRules() {
        if r.Match(c.arg) {
            return r
        }
    }

    return config.GetDefaultRule()
}

// Call runs this thing
func (c *Chooser) Call() {
    r := c.GetRule()
    cmd, args := r.GetCommand()
    args = append(args, c.arg)

    command := exec.Command(cmd, args...)

    if c.config.GetDebug() {
        fmt.Fprintf(os.Stderr, "%v\n", command)
    }

    command.Start()
}