package cachegrind_test

import (
	"strings"
	"testing"

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

	"forge.lclr.dev/AI/xdebug-mcp/internal/cachegrind"
)

const simpleFixture = `version: 1
creator: test
cmd: index.php
part: 1
positions: line

events: Time_(10ns) Memory_(bytes)

fl=(1) index.php
fn=(1) main
1 2000 1000
cfl=(1)
cfn=(2)
calls=1 0 0
2 1500 700

fl=(1)
fn=(2) query
10 1500 700
cfl=(1)
cfn=(3)
calls=2 0 0
15 500 200

fl=(1)
fn=(3) connect
20 250 100
`

func TestParseSimple(t *testing.T) {
	p, err := cachegrind.Parse(strings.NewReader(simpleFixture))
	require.NoError(t, err)

	assert.Equal(t, "index.php", p.Cmd)
	assert.Equal(t, []string{"Time_(10ns)", "Memory_(bytes)"}, p.Events)
	assert.Len(t, p.Functions, 3)

	main := p.ByName["main"]
	require.Len(t, main, 1)
	// main costs: self (2000,1000) + call to query (1500,700) = (3500,1700)
	assert.Equal(t, []int64{3500, 1700}, main[0].Costs)
	assert.Len(t, main[0].Calls, 1)
	assert.Equal(t, int64(1), main[0].Calls[0].Count)
	assert.Equal(t, "query", main[0].Calls[0].Callee.Name)

	query := p.ByName["query"]
	require.Len(t, query, 1)
	assert.Equal(t, []int64{2000, 900}, query[0].Costs)
	assert.Len(t, query[0].CalledBy, 1)
	assert.Len(t, query[0].Calls, 1)
	assert.Equal(t, int64(2), query[0].Calls[0].Count)

	connect := p.ByName["connect"]
	require.Len(t, connect, 1)
	assert.Equal(t, []int64{250, 100}, connect[0].Costs)
	assert.Empty(t, connect[0].Calls)
	assert.Len(t, connect[0].CalledBy, 1)
}

func TestParseFile_gzip(t *testing.T) {
	path := "/home/leclere/Uppler/apps/uppler1/docker/tmp/xdebug/cachegrind.out.45.gz"
	p, err := cachegrind.ParseFile(path)
	if err != nil {
		t.Skipf("real file unavailable: %v", err)
	}
	assert.NotEmpty(t, p.Events)
	assert.NotEmpty(t, p.Functions)
	assert.NotEmpty(t, p.Cmd)
}