// Copyright 2021 Harness Inc. All rights reserved.
// Use of this source code is governed by the Polyform Free Trial License
// that can be found in the LICENSE.md file for this repository.

package executions

import (
	"net/http"

	"github.com/harness/gitness/internal/api/render"
	"github.com/harness/gitness/internal/store"

	"github.com/go-chi/chi"
	"github.com/rs/zerolog/hlog"
)

// HandleDelete returns an http.HandlerFunc that deletes
// the object from the datastore.
func HandleDelete(pipelines store.PipelineStore, executions store.ExecutionStore) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var (
			ctx            = r.Context()
			log            = hlog.FromRequest(r)
			pipelineParam  = chi.URLParam(r, "pipeline")
			executionParam = chi.URLParam(r, "execution")
		)

		pipeline, err := pipelines.FindSlug(ctx, pipelineParam)
		if err != nil {
			render.NotFound(w, err)
			log.Debug().Err(err).
				Str("pipeline_slug", pipelineParam).
				Msg("pipeline not found")
			return
		}

		execution, err := executions.FindSlug(ctx, pipeline.ID, executionParam)
		if err != nil {
			render.NotFound(w, err)
			log.Debug().Err(err).
				Int64("pipeline_id", pipeline.ID).
				Str("pipeline_slug", pipeline.Slug).
				Str("execution_slug", executionParam).
				Msg("execution not found")
			return
		}

		err = executions.Delete(ctx, execution)
		if err != nil {
			render.InternalError(w, err)
			log.Error().Err(err).
				Int64("pipeline_id", pipeline.ID).
				Str("pipeline_slug", pipeline.Slug).
				Int64("execution_id", execution.ID).
				Str("execution_slug", execution.Slug).
				Msg("cannot delete execution")
		} else {
			w.WriteHeader(http.StatusNoContent)
		}
	}
}