// Copyright 2018 Drone.IO Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package datastore

import (
	"testing"

	"github.com/stretchr/testify/assert"

	"github.com/woodpecker-ci/woodpecker/server/model"
)

func TestProcFind(t *testing.T) {
	store, closer := newTestStore(t, new(model.Proc), new(model.Build))
	defer closer()

	procs := []*model.Proc{
		{
			BuildID:  1000,
			PID:      1,
			PPID:     2,
			PGID:     3,
			Name:     "build",
			State:    model.StatusSuccess,
			Error:    "pc load letter",
			ExitCode: 255,
			Machine:  "localhost",
			Platform: "linux/amd64",
			Environ:  map[string]string{"GOLANG": "tip"},
		},
	}
	assert.NoError(t, store.ProcCreate(procs))
	assert.EqualValues(t, 1, procs[0].ID)
	assert.Error(t, store.ProcCreate(procs))

	proc, err := store.ProcFind(&model.Build{ID: 1000}, 1)
	if !assert.NoError(t, err) {
		return
	}
	assert.Equal(t, procs[0], proc)
}

func TestProcChild(t *testing.T) {
	store, closer := newTestStore(t, new(model.Proc), new(model.Build))
	defer closer()

	err := store.ProcCreate([]*model.Proc{
		{
			BuildID: 1,
			PID:     1,
			PPID:    1,
			PGID:    1,
			State:   "success",
		},
		{
			BuildID: 1,
			PID:     2,
			PGID:    2,
			PPID:    1,
			Name:    "build",
			State:   "success",
		},
	})
	if err != nil {
		t.Errorf("Unexpected error: insert procs: %s", err)
		return
	}
	proc, err := store.ProcChild(&model.Build{ID: 1}, 1, "build")
	if err != nil {
		t.Error(err)
		return
	}

	if got, want := proc.PID, 2; got != want {
		t.Errorf("Want proc pid %d, got %d", want, got)
	}
	if got, want := proc.Name, "build"; got != want {
		t.Errorf("Want proc name %s, got %s", want, got)
	}
}

func TestProcList(t *testing.T) {
	store, closer := newTestStore(t, new(model.Proc), new(model.Build))
	defer closer()

	err := store.ProcCreate([]*model.Proc{
		{
			BuildID: 2,
			PID:     1,
			PPID:    1,
			PGID:    1,
			State:   "success",
		},
		{
			BuildID: 1,
			PID:     1,
			PPID:    1,
			PGID:    1,
			State:   "success",
		},
		{
			BuildID: 1,
			PID:     2,
			PGID:    2,
			PPID:    1,
			Name:    "build",
			State:   "success",
		},
	})
	if err != nil {
		t.Errorf("Unexpected error: insert procs: %s", err)
		return
	}
	procs, err := store.ProcList(&model.Build{ID: 1})
	if err != nil {
		t.Error(err)
		return
	}
	if got, want := len(procs), 2; got != want {
		t.Errorf("Want %d procs, got %d", want, got)
	}
}

func TestProcUpdate(t *testing.T) {
	store, closer := newTestStore(t, new(model.Proc), new(model.Build))
	defer closer()

	proc := &model.Proc{
		BuildID:  1,
		PID:      1,
		PPID:     2,
		PGID:     3,
		Name:     "build",
		State:    "pending",
		Error:    "pc load letter",
		ExitCode: 255,
		Machine:  "localhost",
		Platform: "linux/amd64",
		Environ:  map[string]string{"GOLANG": "tip"},
	}
	if err := store.ProcCreate([]*model.Proc{proc}); err != nil {
		t.Errorf("Unexpected error: insert proc: %s", err)
		return
	}
	proc.State = "running"
	if err := store.ProcUpdate(proc); err != nil {
		t.Errorf("Unexpected error: update proc: %s", err)
		return
	}
	updated, err := store.ProcFind(&model.Build{ID: 1}, 1)
	if err != nil {
		t.Error(err)
		return
	}
	if got, want := updated.State, "running"; got != want {
		t.Errorf("Want proc name %s, got %s", want, got)
	}
}

func TestProcIndexes(t *testing.T) {
	store, closer := newTestStore(t, new(model.Proc), new(model.Build))
	defer closer()

	if err := store.ProcCreate([]*model.Proc{
		{
			BuildID: 1,
			PID:     1,
			PPID:    1,
			PGID:    1,
			State:   "running",
			Name:    "build",
		},
	}); err != nil {
		t.Errorf("Unexpected error: insert procs: %s", err)
		return
	}

	// fail due to duplicate pid
	if err := store.ProcCreate([]*model.Proc{
		{
			BuildID: 1,
			PID:     1,
			PPID:    1,
			PGID:    1,
			State:   "success",
			Name:    "clone",
		},
	}); err == nil {
		t.Errorf("Unexpected error: duplicate pid")
	}
}

// TODO: func TestProcCascade(t *testing.T) {}