package handler

import (
	"context"
	"encoding/json"
	"net/http"
	"strings"
	"time"
	"vctp/internal/tasks"
)

// SnapshotForceHourly triggers an on-demand hourly snapshot run.
// @Summary Trigger hourly snapshot (manual)
// @Description Manually trigger an hourly snapshot for all configured vCenters. Requires confirmation text to avoid accidental execution.
// @Tags snapshots
// @Accept json
// @Produce json
// @Param confirm query string true "Confirmation text; must be 'FORCE'"
// @Success 200 {object} map[string]string "Snapshot started"
// @Failure 400 {object} map[string]string "Invalid request"
// @Failure 500 {object} map[string]string "Server error"
// @Router /api/snapshots/hourly/force [post]
func (h *Handler) SnapshotForceHourly(w http.ResponseWriter, r *http.Request) {
	confirm := strings.TrimSpace(r.URL.Query().Get("confirm"))
	if strings.ToUpper(confirm) != "FORCE" {
		writeJSONError(w, http.StatusBadRequest, "confirm must be 'FORCE'")
		return
	}

	ctx := context.Background()
	ct := &tasks.CronTask{
		Logger:   h.Logger,
		Database: h.Database,
		Settings: h.Settings,
		VcCreds:  h.VcCreds,
	}

	started := time.Now()
	h.Logger.Info("Manual hourly snapshot requested")
	if err := ct.RunVcenterSnapshotHourly(ctx, h.Logger.With("manual", true)); err != nil {
		h.Logger.Error("Manual hourly snapshot failed", "error", err)
		writeJSONError(w, http.StatusInternalServerError, err.Error())
		return
	}

	h.Logger.Info("Manual hourly snapshot completed", "duration", time.Since(started))
	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(map[string]string{
		"status": "OK",
	})
}