package http

import (
	"bytes"
	"context"
	"encoding/json"
	stdhttp "net/http"
	"testing"
	"time"

	"github.com/oklog/ulid/v2"

	"gitea.dcglab.co.uk/steve/restic-manager/internal/alert"
	"gitea.dcglab.co.uk/steve/restic-manager/internal/store"
)

func seedRunningJob(t *testing.T, st *store.Store, hostID string) string {
	t.Helper()
	id := ulid.Make().String()
	when := time.Now().UTC().Add(-24 * time.Hour)
	if err := st.CreateJob(context.Background(), store.Job{
		ID: id, HostID: hostID, Kind: "backup", ActorKind: "user", CreatedAt: when,
	}); err != nil {
		t.Fatalf("create job: %v", err)
	}
	if err := st.MarkJobStarted(context.Background(), id, when); err != nil {
		t.Fatalf("start job: %v", err)
	}
	return id
}

func TestAbandonJobMakesOrphanTerminalAndAudits(t *testing.T) {
	t.Parallel()
	_, ts, st := rawTestServer(t)
	hostID := makeHost(t, st, "abandon-host")
	jobID := seedRunningJob(t, st, hostID)
	req, _ := stdhttp.NewRequest(stdhttp.MethodPost, ts.URL+"/api/jobs/"+jobID+"/abandon", nil)
	req.AddCookie(loginAsAdmin(t, st))
	res, err := stdhttp.DefaultClient.Do(req)
	if err != nil {
		t.Fatalf("abandon: %v", err)
	}
	defer res.Body.Close()
	if res.StatusCode != stdhttp.StatusOK {
		t.Fatalf("status: got %d", res.StatusCode)
	}
	job, _ := st.GetJob(context.Background(), jobID)
	if job.Status != "cancelled" || job.FinishedAt == nil || job.Error == nil {
		t.Fatalf("job not terminalised: %+v", job)
	}
	var audits int
	_ = st.DB().QueryRow(`SELECT COUNT(*) FROM audit_log WHERE action = 'job.abandon' AND target_id = ?`, jobID).Scan(&audits)
	if audits != 1 {
		t.Fatalf("audit rows: got %d", audits)
	}
}

func TestBulkAbandonTargetsOnlyAlertedStuckJobs(t *testing.T) {
	t.Parallel()
	_, ts, st := rawTestServer(t)
	hostID := makeHost(t, st, "bulk-abandon-host")
	stuckID := seedRunningJob(t, st, hostID)
	unalertedID := seedRunningJob(t, st, hostID)
	_, _, err := st.RaiseOrTouch(context.Background(), hostID, alert.KindJobStuck, stuckID,
		"warning", "stuck", time.Now().UTC())
	if err != nil {
		t.Fatalf("raise alert: %v", err)
	}
	req, _ := stdhttp.NewRequest(stdhttp.MethodPost, ts.URL+"/api/jobs/abandon-stuck", bytes.NewReader(nil))
	req.AddCookie(loginAsAdmin(t, st))
	res, err := stdhttp.DefaultClient.Do(req)
	if err != nil {
		t.Fatalf("bulk abandon: %v", err)
	}
	defer res.Body.Close()
	if res.StatusCode != stdhttp.StatusOK {
		t.Fatalf("status: got %d", res.StatusCode)
	}
	var out map[string]int
	_ = json.NewDecoder(res.Body).Decode(&out)
	if out["abandoned"] != 1 {
		t.Fatalf("abandoned: %+v", out)
	}
	stuck, _ := st.GetJob(context.Background(), stuckID)
	unalerted, _ := st.GetJob(context.Background(), unalertedID)
	if stuck.Status != "cancelled" || unalerted.Status != "running" {
		t.Fatalf("statuses: stuck=%s unalerted=%s", stuck.Status, unalerted.Status)
	}
	open, _ := st.ListAlerts(context.Background(), store.AlertFilter{Status: "open"})
	if len(open) != 0 {
		t.Fatalf("stuck alerts remained open: %+v", open)
	}
}