package config

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
)

const valid = `{
  "radarr":  {"url": "http://localhost:7878/", "apikey": "r"},
  "sonarr":  {"url": "http://localhost:8989",  "apikey": "s"},
  "sabnzbd": {"url": "https://sab.example.com", "apikey": "n"}
}`

func TestParseValid(t *testing.T) {
	cfg, err := Parse([]byte(valid))
	if err != nil {
		t.Fatal(err)
	}
	if cfg.Radarr.URL != "http://localhost:7878" {
		t.Errorf("trailing slash not trimmed: %q", cfg.Radarr.URL)
	}
	if cfg.UI.RefreshSeconds != defaultRefreshSeconds {
		t.Errorf("refresh default = %d", cfg.UI.RefreshSeconds)
	}
}

func TestParseErrors(t *testing.T) {
	tests := map[string]struct {
		json string
		want string
	}{
		"unknown field": {`{"radar": {}}`, "unknown field"},
		"missing key":   {`{"radarr":{"url":"http://a"},"sonarr":{"url":"http://b","apikey":"x"},"sabnzbd":{"url":"http://c","apikey":"x"}}`, "radarr: apikey is required"},
		"bad url":       {`{"radarr":{"url":"localhost","apikey":"x"},"sonarr":{"url":"http://b","apikey":"x"},"sabnzbd":{"url":"http://c","apikey":"x"}}`, "must be an http(s) URL"},
		"invalid json":  {`{`, "parsing config"},
	}
	for name, tc := range tests {
		t.Run(name, func(t *testing.T) {
			_, err := Parse([]byte(tc.json))
			if err == nil || !strings.Contains(err.Error(), tc.want) {
				t.Fatalf("err = %v, want containing %q", err, tc.want)
			}
		})
	}
}

func TestEnvOverride(t *testing.T) {
	t.Setenv("ARR_TUI_RADARR_APIKEY", "from-env")
	cfg, err := Parse([]byte(valid))
	if err != nil {
		t.Fatal(err)
	}
	if cfg.Radarr.APIKey != "from-env" {
		t.Errorf("apikey = %q", cfg.Radarr.APIKey)
	}
}

func TestLoadPermissionWarning(t *testing.T) {
	path := filepath.Join(t.TempDir(), "config.json")
	if err := os.WriteFile(path, []byte(valid), 0o644); err != nil {
		t.Fatal(err)
	}
	_, warnings, err := Load(path)
	if err != nil {
		t.Fatal(err)
	}
	if len(warnings) != 1 {
		t.Fatalf("warnings = %v", warnings)
	}
	if err := os.Chmod(path, 0o600); err != nil {
		t.Fatal(err)
	}
	if _, warnings, _ = Load(path); len(warnings) != 0 {
		t.Fatalf("unexpected warnings: %v", warnings)
	}
}

func TestShowCovers(t *testing.T) {
	base := `{"radarr":{"url":"http://r","apikey":"k"},"sonarr":{"url":"http://s","apikey":"k"},"sabnzbd":{"url":"http://a","apikey":"k"}`
	for _, tc := range []struct {
		ui   string
		want bool
	}{
		{``, true},
		{`,"ui":{}`, true},
		{`,"ui":{"covers":true}`, true},
		{`,"ui":{"covers":false}`, false},
	} {
		cfg, err := Parse([]byte(base + tc.ui + `}`))
		if err != nil {
			t.Fatal(err)
		}
		if got := cfg.UI.ShowCovers(); got != tc.want {
			t.Errorf("%q: ShowCovers = %v, want %v", tc.ui, got, tc.want)
		}
	}
}