// Copyright 2023 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package tefmocheck

import (
	"encoding/json"
	"fmt"
	"os"

	"go.fuchsia.dev/fuchsia/tools/testing/runtests"
)

func LoadSwarmingTaskSummary(path string) (*SwarmingTaskSummary, error) {
	data, err := os.ReadFile(path)
	if err != nil {
		return nil, fmt.Errorf("failed to read swarming task summary file %q", path)
	}

	var ret SwarmingTaskSummary
	if err := json.Unmarshal(data, &ret); err != nil {
		return nil, fmt.Errorf("failed to unmarshal swarming task summary: %w", err)
	}
	if ret.Results == nil {
		return nil, fmt.Errorf("swarming task summary did not contain top level `results`. Loaded from path: %s", path)
	}
	return &ret, nil
}

func LoadTestSummary(path string) (*runtests.TestSummary, error) {
	if path == "" {
		return &runtests.TestSummary{}, nil
	}
	data, err := os.ReadFile(path)
	if err != nil {
		return nil, fmt.Errorf("failed to read test summary file %q", path)
	}

	var ret runtests.TestSummary
	if err := json.Unmarshal(data, &ret); err != nil {
		return nil, fmt.Errorf("failed to unmarshal test summary: %w", err)
	}
	return &ret, nil
}