feat: migrate to system cache with changing core logic

internal/cliutils/app_builder/builder.go

@@ -0,0 +1,176 @@
+// ALR - Any Linux Repository
+// Copyright (C) 2025 Евгений Храмов
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package appbuilder
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+
+	"github.com/leonelquinteros/gotext"
+
+	"gitea.plemya-x.ru/Plemya-x/ALR/internal/cliutils"
+	"gitea.plemya-x.ru/Plemya-x/ALR/internal/config"
+	"gitea.plemya-x.ru/Plemya-x/ALR/internal/db"
+	"gitea.plemya-x.ru/Plemya-x/ALR/pkg/distro"
+	"gitea.plemya-x.ru/Plemya-x/ALR/pkg/manager"
+	"gitea.plemya-x.ru/Plemya-x/ALR/pkg/repos"
+)
+
+type AppDeps struct {
+	Cfg     *config.ALRConfig
+	DB      *db.Database
+	Repos   *repos.Repos
+	Info    *distro.OSRelease
+	Manager manager.Manager
+}
+
+func (d *AppDeps) Defer() {
+	if d.DB != nil {
+		if err := d.DB.Close(); err != nil {
+			slog.Warn("failed to close db", "err", err)
+		}
+	}
+}
+
+type AppBuilder struct {
+	deps AppDeps
+	err  error
+	ctx  context.Context
+}
+
+func New(ctx context.Context) *AppBuilder {
+	return &AppBuilder{ctx: ctx}
+}
+
+func (b *AppBuilder) UseConfig(cfg *config.ALRConfig) *AppBuilder {
+	if b.err != nil {
+		return b
+	}
+	b.deps.Cfg = cfg
+	return b
+}
+
+func (b *AppBuilder) WithConfig() *AppBuilder {
+	if b.err != nil {
+		return b
+	}
+
+	cfg := config.New()
+	if err := cfg.Load(); err != nil {
+		b.err = cliutils.FormatCliExit(gotext.Get("Error loading config"), err)
+		return b
+	}
+
+	b.deps.Cfg = cfg
+	return b
+}
+
+func (b *AppBuilder) WithDB() *AppBuilder {
+	if b.err != nil {
+		return b
+	}
+
+	cfg := b.deps.Cfg
+	if cfg == nil {
+		b.err = errors.New("config is required before initializing DB")
+		return b
+	}
+
+	db := db.New(cfg)
+	if err := db.Init(b.ctx); err != nil {
+		b.err = cliutils.FormatCliExit(gotext.Get("Error initialization database"), err)
+		return b
+	}
+
+	b.deps.DB = db
+	return b
+}
+
+func (b *AppBuilder) WithRepos() *AppBuilder {
+	b.withRepos(true, false)
+	return b
+}
+
+func (b *AppBuilder) WithReposForcePull() *AppBuilder {
+	b.withRepos(true, true)
+	return b
+}
+
+func (b *AppBuilder) WithReposNoPull() *AppBuilder {
+	b.withRepos(false, false)
+	return b
+}
+
+func (b *AppBuilder) withRepos(enablePull, forcePull bool) *AppBuilder {
+	if b.err != nil {
+		return b
+	}
+
+	cfg := b.deps.Cfg
+	db := b.deps.DB
+	if cfg == nil || db == nil {
+		b.err = errors.New("config and db are required before initializing repos")
+		return b
+	}
+
+	rs := repos.New(cfg, db)
+
+	if enablePull && (forcePull || cfg.AutoPull()) {
+		if err := rs.Pull(b.ctx, cfg.Repos()); err != nil {
+			b.err = cliutils.FormatCliExit(gotext.Get("Error pulling repositories"), err)
+			return b
+		}
+	}
+
+	b.deps.Repos = rs
+
+	return b
+}
+
+func (b *AppBuilder) WithDistroInfo() *AppBuilder {
+	if b.err != nil {
+		return b
+	}
+
+	b.deps.Info, b.err = distro.ParseOSRelease(b.ctx)
+	if b.err != nil {
+		b.err = cliutils.FormatCliExit(gotext.Get("Error parsing os release"), b.err)
+	}
+
+	return b
+}
+
+func (b *AppBuilder) WithManager() *AppBuilder {
+	if b.err != nil {
+		return b
+	}
+
+	b.deps.Manager = manager.Detect()
+	if b.deps.Manager == nil {
+		b.err = cliutils.FormatCliExit(gotext.Get("Unable to detect a supported package manager on the system"), nil)
+	}
+
+	return b
+}
+
+func (b *AppBuilder) Build() (*AppDeps, error) {
+	if b.err != nil {
+		return nil, b.err
+	}
+	return &b.deps, nil
+}