// browse prints the global front-page feed at /browse/ FA's "what's new
// across the site" stream. Uses anon access by default; honours FA_A /
// FA_B / CF_CLEARANCE / FA_UA from env when set (recommended, since FA
// gates parts of the feed behind login + Cloudflare).
//
//	go run ./examples/browse              # 1 page, ~72 items
//	go run ./examples/browse 3            # 3 pages
package main

import (
	"context"
	"fmt"
	"log"
	"os"
	"strconv"

	fa "git.anthrove.art/public/go-fa-api"
)

func main() {
	maxPages := 1
	if len(os.Args) >= 2 {
		if n, err := strconv.Atoi(os.Args[1]); err == nil && n > 0 {
			maxPages = n
		}
	}

	opts := []fa.Option{fa.WithUserAgent("go-fa-api-example/0.1")}
	if a, b := os.Getenv("FA_A"), os.Getenv("FA_B"); a != "" && b != "" {
		opts = []fa.Option{
			fa.WithCookies(fa.Cookies{A: a, B: b}),
			fa.WithCloudflare(fa.CFCookies{Clearance: os.Getenv("CF_CLEARANCE")}),
			fa.WithUserAgent(envOr("FA_UA", "go-fa-api-example/0.1")),
		}
	}
	client := fa.New(opts...)

	count := 0
	for sub, err := range client.Browse(context.Background(), fa.BrowseOptions{MaxPages: maxPages}) {
		if err != nil {
			log.Fatalf("Browse: %v", err)
		}
		count++
		fmt.Printf("[%d] %s %s by %s\n", sub.ID, sub.Title, sub.Rating, sub.Author.DisplayName)
	}
	fmt.Printf("\n%d submissions across %d page(s)\n", count, maxPages)
}

func envOr(key, fallback string) string {
	if v := os.Getenv(key); v != "" {
		return v
	}
	return fallback
}