// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
// Use of this source code is governed by the GPL 3.0

package main

import (
	"os"
	"path/filepath"

	"go.wit.com/lib/debian"
	"go.wit.com/lib/fhelp"
	"go.wit.com/lib/gui/shell"
	"go.wit.com/lib/protobuf/gitpb"
	"go.wit.com/log"
)

var totalBuilt int

func doBuildDeb() (string, error) {
	log.Info("STARTING DEBIAN PACKAGE BUILD")
	// clean out old deb files
	globPattern := filepath.Join(me.homedir, "incoming", "*.deb")
	files, err := filepath.Glob(globPattern)
	if err != nil {
		return "Error during globbing", err
	}
	if len(files) > 0 {
		cmd := []string{"rm"}
		cmd = append(cmd, files...)
		_, err := fhelp.RunRealtimeError(cmd)
		return "rm incoming/* failed", err
	}

	initForge()

	found := gitpb.NewRepos()
	for check := range me.forge.Repos.IterAll() {
		if me.forge.Config.IsReadOnly(check.GetNamespace()) {
			continue
		}
		if me.forge.Config.IsPrivate(check.GetNamespace()) {
			if !argv.Build.Debian.Priv {
				continue
			}
		}

		if !check.IsBinary() {
			continue
		}

		found.Append(check)
	}

	found.ActualSort()
	footer := printPackagingTable(found)
	log.Info("This is what will and will not be built:", footer)

	me.forge.ConfigRill(16, 16)
	stats := me.forge.RunOnRepos(found, buildDeb)
	for s, stat := range stats {
		if stat.Err != nil {
			return "ERROR WITH buildDeb " + s, stat.Err
		}
	}
	if totalBuilt == 0 {
		if argv.DryRun {
			log.Info("")
			return "--dry-run TRUE (nothing done)", nil
		}
		// nothing built, no need to talk to mirrors
		return "everything is current", nil
	}

	if _, err := shell.RunVerbose([]string{"ls", "-l", "/home/jcarr/incoming"}); err != nil {
		me.sh.BadExit("aptly failed", nil)
	}

	if _, err := fhelp.RunRealtimeError([]string{"do-aptly"}); err != nil {
		me.sh.BadExit("aptly failed", nil)
	}
	return "all .deb built ok", nil
}

// avoids nil panics
func isDebianRelease() bool {
	if argv.Build == nil {
		return false
	}
	if argv.Build.Debian == nil {
		return false
	}
	return argv.Build.Debian.Release
}

func shouldBuild(repo *gitpb.Repo) string {
	// NEVER EVER EVER BUILD DIRTY .deb PACKAGES
	// versioning with debian will prioritize the 'd' before numbers
	// so packages will be randomly upgraded based on the git hash
	// just do a commit. Do not 'fix' this. This is a good idea anyway.
	// This should be a policy everywhere.
	if repo.IsDirty() {
		return "no"
	}
	ver := repo.GetCurrentVersion()
	debname := getDebFilename(repo)
	if !debian.DebFilenameMatchesVersion(debname, ver) {
		return "yes"
	}
	if argv.All {
		return "yes"
	}
	return ""
}

func buildDeb(repo *gitpb.Repo) error {
	var cmd []string

	outdir := getOutdir(repo)
	os.MkdirAll(outdir, 0755)

	if isDebianRelease() {
		cmd = []string{"go-deb", "--release", "--namespace", repo.Namespace, "--dir", outdir}
	} else {
		cmd = []string{"go-deb", "--namespace", repo.Namespace, "--dir", outdir}
	}

	if me.forge.Config.IsPrivate(repo.GetNamespace()) {
		cmd = []string{"go-deb", "--namespace", repo.Namespace, "--dir", outdir}
		// return nil
	}

	if shouldBuild(repo) != "yes" {
		return nil
	}

	if argv.Verbose {
		// log.Info("build cmd:", cmd)
		cmd = append(cmd, "--verbose")
	}

	debname := me.forge.Config.DebName(repo.GetNamespace())
	debname += "." + me.forge.GetPackageVersion(repo) + ".deb"
	if argv.DryRun {
		log.Info("RUN:", repo.FullPath, debname)
		log.Info("RUN:", cmd)
		return nil
	}

	log.Info("Building", debname, cmd)
	var err error
	if _, err = repo.RunVerboseOnError(cmd); err != nil {
		log.Info(repo.FullPath, cmd)
		return err
	}

	totalBuilt += 1
	log.Info("build worked", cmd, repo.FullPath)
	return nil
}

func getOutdir(repo *gitpb.Repo) string {
	if me.forge.Config.IsPrivate(repo.GetNamespace()) {
		return "/home/jcarr/incoming-private"
	}
	if argv.Force {
		return "/home/jcarr/incoming"
	}
	if repo.GetLastTag() != repo.GetMasterVersion() {
		return "/home/jcarr/incoming-devel"
	}

	if repo.GetCurrentBranchVersion() != repo.GetMasterVersion() {
		return "/home/jcarr/incoming-devel"
	}

	if repo.CheckDirty() {
		return "/home/jcarr/incoming-dirty-junk"
	}

	return "/home/jcarr/incoming"
}