package conflib_test

import (
	"os"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"

	"git.janky.solutions/finn/conflib"
)

type Config struct {
	StringField       string
	IntField          int
	BoolField         bool `env:"BOOL"`
	NestedField       nested
	StringWithDefault string `default:"default value"`
	IntWithDefault    int    `default:"4"`
	BoolWithDefault   bool   `default:"true"`
}

type nested struct {
	Sample string
}

func TestLoadDefaults(t *testing.T) {
	loader := conflib.Loader[Config]{AllowNoSources: true}
	config, err := loader.Load()
	require.NoError(t, err)
	assert.Equal(t, "default value", config.StringWithDefault)
	assert.Equal(t, 4, config.IntWithDefault)
	assert.Equal(t, true, config.BoolWithDefault)
}

func TestLoadJson(t *testing.T) {
	loader := conflib.Loader[Config]{}
	config, err := loader.Load("testdata/working.json")
	require.NoError(t, err)
	assert.Equal(t, "default value", config.StringWithDefault)
	assert.Equal(t, "valllue", config.StringField)
}

func TestLoadEnv(t *testing.T) {
	os.Setenv("TESTAPP_STRING_FIELD", "idklol")
	os.Setenv("TESTAPP_INT_FIELD", "4")
	os.Setenv("TESTAPP_BOOL", "true")
	loader := conflib.Loader[Config]{EnvPrefix: "TESTAPP"}
	config, err := loader.Load()
	require.NoError(t, err)
	assert.Equal(t, "idklol", config.StringField)
	assert.Equal(t, 4, config.IntField)
	assert.Equal(t, true, config.BoolField)
}