package config_test

import (
	"strings"
	"testing"
	"time"

	"git.wntrmute.dev/kyle/crossbar/internal/config"
)

const v1Base = `
listen = "127.0.0.1:1"
[hosts.a]
base_url = "http://a:1"
models = { "m" = { } }
[routes.r]
hosts = ["a"]
`

func TestV1Defaults(t *testing.T) {
	c, err := config.Parse(strings.NewReader(v1Base))
	if err != nil {
		t.Fatal(err)
	}
	if c.DB != "crossbar.db" {
		t.Errorf("DB default = %q", c.DB)
	}
	if c.LeaseIdle.Duration != 30*time.Minute {
		t.Errorf("LeaseIdle default = %v", c.LeaseIdle.Duration)
	}
	if c.Retention.Duration != 180*24*time.Hour {
		t.Errorf("Retention default = %v", c.Retention.Duration)
	}
}

func TestV1Values(t *testing.T) {
	c, err := config.Parse(strings.NewReader(`
db = "/var/lib/crossbar/crossbar.db"
lease_idle = "45m"
retention = "30d"
` + v1Base))
	if err != nil {
		t.Fatal(err)
	}
	if c.DB != "/var/lib/crossbar/crossbar.db" || c.LeaseIdle.Duration != 45*time.Minute || c.Retention.Duration != 30*24*time.Hour {
		t.Errorf("got db %q idle %v retention %v", c.DB, c.LeaseIdle.Duration, c.Retention.Duration)
	}
}

func TestDurationAcceptsDays(t *testing.T) {
	var d config.Duration
	for _, tc := range []struct {
		in   string
		want time.Duration
	}{
		{"1d", 24 * time.Hour}, {"7d", 7 * 24 * time.Hour}, {"90m", 90 * time.Minute}, {"2h30m", 150 * time.Minute},
	} {
		if err := d.UnmarshalText([]byte(tc.in)); err != nil || d.Duration != tc.want {
			t.Errorf("UnmarshalText(%q) = %v %v, want %v", tc.in, d.Duration, err, tc.want)
		}
	}
	for _, bad := range []string{"1.5d", "d", "3 days", "1d2h"} {
		if err := d.UnmarshalText([]byte(bad)); err == nil {
			t.Errorf("UnmarshalText(%q) must fail", bad)
		}
	}
}

func TestV1Validation(t *testing.T) {
	for _, tc := range []struct{ name, text, field string }{
		{"empty db", "db = \"\"\n" + v1Base, "db"},
		{"lease_idle too short", "lease_idle = \"10s\"\n" + v1Base, "lease_idle"},
		{"retention too short", "retention = \"12h\"\n" + v1Base, "retention"},
	} {
		_, err := config.Parse(strings.NewReader(tc.text))
		e, ok := config.IsError(err)
		if !ok || e.Field != tc.field {
			t.Errorf("%s: %v, want *Error on %s", tc.name, err, tc.field)
		}
	}
}