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path: root/internal/config/cache.go
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package config

import (
	"encoding/json"
	"os"
	"path/filepath"
)

type API struct {
	Token string `json:"token"`
}

func LoadAPI() (*API, error) {
	data, err := os.ReadFile(APIPath())
	if err != nil {
		return nil, err
	}

	var a API
	if err := json.Unmarshal(data, &a); err != nil {
		return nil, err
	}
	return &a, nil
}

func SaveAPI(api *API) error {
	if err := os.MkdirAll(Dir, 0o755); err != nil {
		return err
	}

	data, err := json.MarshalIndent(api, "", "  ")
	if err != nil {
		return err
	}
	return os.WriteFile(APIPath(), append(data, '\n'), 0o600)
}

type ModState struct {
	Compatible string `json:"compatible"`
	Latest     string `json:"latest"`
}

type Cache map[string]ModState

func CachePath() string {
	return filepath.Join("cache", "mod_versions.json")
}

func LoadCache() (Cache, error) {
	data, err := os.ReadFile(CachePath())
	if err != nil {
		if os.IsNotExist(err) {
			return Cache{}, nil
		}
		return nil, err
	}

	cache := Cache{}
	if err := json.Unmarshal(data, &cache); err != nil {
		return nil, err
	}
	return cache, nil
}

func SaveCache(cache Cache) error {
	if err := os.MkdirAll(filepath.Dir(CachePath()), 0o755); err != nil {
		return err
	}

	data, err := json.MarshalIndent(cache, "", "  ")
	if err != nil {
		return err
	}
	return os.WriteFile(CachePath(), data, 0o644)
}