// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1

package github

import (
	"context"
	"fmt"
	"log/slog"

	gh "github.com/google/go-github/v74/github"
	slogctx "github.com/veqryn/slog-context"
)

// getWorkflow attempts to locate the workflow associated with our workflow name.
func getWorkflow(
	ctx context.Context,
	client *gh.Client,
	owner string,
	repo string,
	name string,
) (*gh.Workflow, error) {
	slog.Default().DebugContext(slogctx.Append(ctx,
		slog.String("owner", owner),
		slog.String("repo", repo),
		slog.String("name", name),
	), "getting github actions workflow")

	opts := &gh.ListOptions{PerPage: PerPageMax}
	for {
		wfs, res, err := client.Actions.ListWorkflows(ctx, owner, repo, opts)
		if err != nil {
			return nil, err
		}

		for _, wf := range wfs.Workflows {
			if wf.GetName() == name {
				return wf, nil
			}
		}

		if res.NextPage == 0 {
			return nil, fmt.Errorf("no workflow matching %s could be found", name)
		}

		opts.Page = res.NextPage
	}
}

// getWorkflowRuns gets the workflow runs associated with a workflow ID.
func getWorkflowRuns(
	ctx context.Context,
	client *gh.Client,
	owner string,
	repo string,
	id int64,
	opts *gh.ListWorkflowRunsOptions,
) ([]*WorkflowRun, error) {
	slog.Default().DebugContext(slogctx.Append(ctx,
		slog.String("owner", owner),
		slog.String("repo", repo),
		slog.Int64("id", id),
	), "getting github actions workflow runs")

	var runs []*WorkflowRun
	opts.ListOptions = gh.ListOptions{PerPage: PerPageMax}

	for {
		wfrs, res, err := client.Actions.ListWorkflowRunsByID(ctx, owner, repo, id, opts)
		if err != nil {
			return nil, err
		}

		for _, r := range wfrs.WorkflowRuns {
			runs = append(runs, &WorkflowRun{Run: r})
		}

		if res.NextPage == 0 {
			return runs, nil
		}

		opts.ListOptions.Page = res.NextPage
	}
}

// getWorkflowRunArtifacts gets the artifacts associated with a workflow run
func getWorkflowRunArtifacts(
	ctx context.Context,
	client *gh.Client,
	owner string,
	repo string,
	id int64,
) (gh.ArtifactList, error) {
	slog.Default().DebugContext(slogctx.Append(ctx,
		slog.String("owner", owner),
		slog.String("repo", repo),
		slog.Int64("id", id),
	), "getting github actions workflow run artifacts")

	opts := &gh.ListOptions{PerPage: PerPageMax}
	artifacts := gh.ArtifactList{}

	for {
		arts, res, err := client.Actions.ListWorkflowRunArtifacts(ctx, owner, repo, id, opts)
		if err != nil {
			return artifacts, err
		}

		newTotal := artifacts.GetTotalCount() + arts.GetTotalCount()
		artifacts.TotalCount = &newTotal
		artifacts.Artifacts = append(artifacts.Artifacts, arts.Artifacts...)

		if res.NextPage == 0 {
			return artifacts, nil
		}

		opts.Page = res.NextPage
	}
}