package main

import (
	"C"
	"errors"
	"fmt"
	"net/http"
	"time"

	"github.com/PuerkitoBio/goquery"
)

func GetSourceName() string {
	return "dilbert"
}

func GetFeedList() []map[string]string {
	var ret []map[string]string
	feedMap := make(map[string]string)
	feedMap["slug"] = "dilbert"
	feedMap["name"] = "Dilbert"
	feedMap["author"] = "Scott Adams"
	feedMap["source"] = GetSourceName()
	ret = append(ret, feedMap)
	return ret
}

func GetFeedUrl(slug string, date time.Time) (string, error) {
	return fmt.Sprintf(
		"http://dilbert.com/strip/%4d-%02d-%02d",
		date.Year(),
		date.Month(),
		date.Day(),
	), nil
}

func GetFeedDesc(slug string, date time.Time) (string, error) {
	url, err := GetFeedUrl(slug, date)
	if err != nil {
		return "", err
	}
	res, err := http.Get(url)
	if err != nil {
		return "", err
	}
	defer res.Body.Close()
	if res.StatusCode != 200 {
		return "", errors.New(fmt.Sprintf("Status code error: %d %s", res.StatusCode, res.Status))
	}

	// Load the HTML document
	doc, err := goquery.NewDocumentFromReader(res.Body)
	if err != nil {
		return "", err
	}
	// Find the Picture
	src, exists := doc.Find("img.img-comic").Attr("src")
	if !exists {
		return "", errors.New("Couldn't find image source")
	}
	return "<img src=\"https:" + src + "\" />", nil
}