package cmd

import (
	"fmt"
	"log"
	"time"

	"github.com/Jaculabilis/intake/core"
	"github.com/spf13/cobra"
)

var testCmd = &cobra.Command{
	Use:   "test [flags] -- command",
	Short: "Test a feed source",
	Long: `Execute a command as if it were a feed source's fetch action.

The display format of the returned items is the same as "intake feed".`,
	Run: func(cmd *cobra.Command, args []string) {
		l := cmd.Flags().ArgsLenAtDash()
		if l == -1 {
			test(nil)
		} else {
			test(args[l:])
		}
	},
}

var testEnv []string
var testFormat string

func init() {
	rootCmd.AddCommand(testCmd)

	testCmd.Flags().StringArrayVarP(&testEnv, "env", "e", nil, "Environment variables to set, in the form KEY=VAL")
	testCmd.Flags().StringVarP(&testFormat, "format", "f", "headlines", "Feed format for returned items.")
}

func test(cmd []string) {
	formatter, err := core.FormatAs(testFormat)
	if err != nil {
		log.Fatal(err)
	}

	items, err := core.Execute(cmd, testEnv, "", time.Minute)
	log.Printf("Returned %d items", len(items))
	if err != nil {
		log.Fatal(err)
	}
	for _, item := range items {
		fmt.Println(formatter(item))
	}
}