package parser

import (
	"testing"

	"github.com/yourname/reddit-scraper/internal/fetcher"
)

func TestParseJSONPost_Valid(t *testing.T) {
	j := fetcher.JSONPost{
		ID:          "abc123",
		Subreddit:   "golang",
		Title:       "An interesting post",
		Author:      "alice",
		CreatedUTC:  1620000000,
		Score:       10,
		NumComments: 2,
		Selftext:    "Hello world",
		URL:         "https://reddit.com/r/golang/comments/abc123",
		Permalink:   "/r/golang/comments/abc123",
	}
	p, err := ParseJSONPost(j)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if p.ID != j.ID {
		t.Fatalf("id mismatch: %s != %s", p.ID, j.ID)
	}
	if p.Author != "alice" {
		t.Fatalf("author mismatch: %s", p.Author)
	}
}

func TestParseJSONPost_DeletedAuthor(t *testing.T) {
	j := fetcher.JSONPost{
		ID:         "d1",
		Subreddit:  "test",
		Title:      "post",
		Author:     "",
		CreatedUTC: 1600000000,
	}
	p, err := ParseJSONPost(j)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if p.Author != "[deleted]" {
		t.Fatalf("expected [deleted], got %s", p.Author)
	}
}

func TestParseJSONPost_MissingFields(t *testing.T) {
	j := fetcher.JSONPost{
		ID: "",
	}
	_, err := ParseJSONPost(j)
	if err == nil {
		t.Fatalf("expected error for missing id")
	}
}