package main

import (
	"net/url"
	"testing"
	"time"
)

func TestQuery(t *testing.T) {
	now := time.Date(2026, 10, 1, 12, 0, 0, 0, time.UTC)
	tests := []struct {
		params string
		want   string
	}{
		{"", "archived:false stars:>=1"},
		{"q=log+viewer&in=name", "log viewer in:name archived:false"},
		{"language=Go&stars=100", "language:Go stars:>=100 archived:false"},
		{"stars=10&maxstars=500&minforks=5", "stars:10..500 forks:>=5 archived:false"},
		{"topic=CLI&license=MIT&archived=1&forks=1", "topic:cli license:mit fork:true"},
		{"q=syslog&pushed=1y&created=1m&goodfirst=1", "syslog pushed:>=2025-10-01 created:>=2026-09-01 archived:false good-first-issues:>0"},
	}
	for _, tt := range tests {
		v, _ := url.ParseQuery(tt.params)
		c, err := ParseCriteria(v)
		if err != nil {
			t.Fatalf("%q: %v", tt.params, err)
		}
		if got := c.Query(now); got != tt.want {
			t.Errorf("%q:\n got  %q\n want %q", tt.params, got, tt.want)
		}
	}
}

func TestParseCriteriaErrors(t *testing.T) {
	for _, p := range []string{
		"stars=-1", "stars=abc", "pushed=3d", "sort=name", "in=code",
		"language=go%20lang%3Arm", "topic=a:b", "page=40&per_page=30",
	} {
		v, _ := url.ParseQuery(p)
		if _, err := ParseCriteria(v); err == nil {
			t.Errorf("%q: expected an error", p)
		}
	}
}

func TestPerPageCap(t *testing.T) {
	v, _ := url.ParseQuery("per_page=500")
	c, err := ParseCriteria(v)
	if err != nil || c.PerPage != 100 {
		t.Fatalf("per_page=500: got %d, %v", c.PerPage, err)
	}
}