package cmd

import (
	"runtime"
	"time"

	"github.com/caarlos0/ctrlc"
	"github.com/caarlos0/log"
	"github.com/goreleaser/goreleaser/internal/middleware/errhandler"
	"github.com/goreleaser/goreleaser/internal/middleware/logging"
	"github.com/goreleaser/goreleaser/internal/middleware/skip"
	"github.com/goreleaser/goreleaser/internal/pipe/git"
	"github.com/goreleaser/goreleaser/internal/pipeline"
	"github.com/goreleaser/goreleaser/pkg/context"
	"github.com/spf13/cobra"
)

type releaseCmd struct {
	cmd  *cobra.Command
	opts releaseOpts
}

type releaseOpts struct {
	config             string
	releaseNotesFile   string
	releaseNotesTmpl   string
	releaseHeaderFile  string
	releaseHeaderTmpl  string
	releaseFooterFile  string
	releaseFooterTmpl  string
	autoSnapshot       bool
	snapshot           bool
	skipPublish        bool
	skipSign           bool
	skipValidate       bool
	skipAnnounce       bool
	skipSBOMCataloging bool
	skipDocker         bool
	skipKo             bool
	skipBefore         bool
	rmDist             bool
	deprecated         bool
	parallelism        int
	timeout            time.Duration
}

func newReleaseCmd() *releaseCmd {
	root := &releaseCmd{}
	// nolint: dupl
	cmd := &cobra.Command{
		Use:           "release",
		Aliases:       []string{"r"},
		Short:         "Releases the current project",
		SilenceUsage:  true,
		SilenceErrors: true,
		Args:          cobra.NoArgs,
		RunE: timedRunE("release", func(cmd *cobra.Command, args []string) error {
			ctx, err := releaseProject(root.opts)
			if err != nil {
				return err
			}
			deprecateWarn(ctx)
			return nil
		}),
	}

	cmd.Flags().StringVarP(&root.opts.config, "config", "f", "", "Load configuration from file")
	cmd.Flags().StringVar(&root.opts.releaseNotesFile, "release-notes", "", "Load custom release notes from a markdown file (will skip GoReleaser changelog generation)")
	cmd.Flags().StringVar(&root.opts.releaseHeaderFile, "release-header", "", "Load custom release notes header from a markdown file")
	cmd.Flags().StringVar(&root.opts.releaseFooterFile, "release-footer", "", "Load custom release notes footer from a markdown file")
	cmd.Flags().StringVar(&root.opts.releaseNotesTmpl, "release-notes-tmpl", "", "Load custom release notes from a templated markdown file (overrides --release-notes)")
	cmd.Flags().StringVar(&root.opts.releaseHeaderTmpl, "release-header-tmpl", "", "Load custom release notes header from a templated markdown file (overrides --release-header)")
	cmd.Flags().StringVar(&root.opts.releaseFooterTmpl, "release-footer-tmpl", "", "Load custom release notes footer from a templated markdown file (overrides --release-footer)")
	cmd.Flags().BoolVar(&root.opts.autoSnapshot, "auto-snapshot", false, "Automatically sets --snapshot if the repository is dirty")
	cmd.Flags().BoolVar(&root.opts.snapshot, "snapshot", false, "Generate an unversioned snapshot release, skipping all validations and without publishing any artifacts (implies --skip-publish, --skip-announce and --skip-validate)")
	cmd.Flags().BoolVar(&root.opts.skipPublish, "skip-publish", false, "Skips publishing artifacts (implies --skip-announce)")
	cmd.Flags().BoolVar(&root.opts.skipAnnounce, "skip-announce", false, "Skips announcing releases (implies --skip-validate)")
	cmd.Flags().BoolVar(&root.opts.skipSign, "skip-sign", false, "Skips signing artifacts")
	cmd.Flags().BoolVar(&root.opts.skipSBOMCataloging, "skip-sbom", false, "Skips cataloging artifacts")
	cmd.Flags().BoolVar(&root.opts.skipDocker, "skip-docker", false, "Skips Docker Images/Manifests builds")
	cmd.Flags().BoolVar(&root.opts.skipKo, "skip-ko", false, "Skips Ko builds")
	cmd.Flags().BoolVar(&root.opts.skipBefore, "skip-before", false, "Skips global before hooks")
	cmd.Flags().BoolVar(&root.opts.skipValidate, "skip-validate", false, "Skips git checks")
	cmd.Flags().BoolVar(&root.opts.rmDist, "rm-dist", false, "Removes the dist folder")
	cmd.Flags().IntVarP(&root.opts.parallelism, "parallelism", "p", 0, "Amount tasks to run concurrently (default: number of CPUs)")
	cmd.Flags().DurationVar(&root.opts.timeout, "timeout", 30*time.Minute, "Timeout to the entire release process")
	cmd.Flags().BoolVar(&root.opts.deprecated, "deprecated", false, "Force print the deprecation message - tests only")
	_ = cmd.Flags().MarkHidden("deprecated")
	_ = cmd.Flags().SetAnnotation("config", cobra.BashCompFilenameExt, []string{"yaml", "yml"})

	root.cmd = cmd
	return root
}

func releaseProject(options releaseOpts) (*context.Context, error) {
	cfg, err := loadConfig(options.config)
	if err != nil {
		return nil, err
	}
	ctx, cancel := context.NewWithTimeout(cfg, options.timeout)
	defer cancel()
	setupReleaseContext(ctx, options)
	return ctx, ctrlc.Default.Run(ctx, func() error {
		for _, pipe := range pipeline.Pipeline {
			if err := skip.Maybe(
				pipe,
				logging.Log(
					pipe.String(),
					errhandler.Handle(pipe.Run),
				),
			)(ctx); err != nil {
				return err
			}
		}
		return nil
	})
}

func setupReleaseContext(ctx *context.Context, options releaseOpts) {
	ctx.Parallelism = runtime.NumCPU()
	if options.parallelism > 0 {
		ctx.Parallelism = options.parallelism
	}
	log.Debugf("parallelism: %v", ctx.Parallelism)
	ctx.ReleaseNotesFile = options.releaseNotesFile
	ctx.ReleaseNotesTmpl = options.releaseNotesTmpl
	ctx.ReleaseHeaderFile = options.releaseHeaderFile
	ctx.ReleaseHeaderTmpl = options.releaseHeaderTmpl
	ctx.ReleaseFooterFile = options.releaseFooterFile
	ctx.ReleaseFooterTmpl = options.releaseFooterTmpl
	ctx.Snapshot = options.snapshot
	if options.autoSnapshot && git.CheckDirty(ctx) != nil {
		log.Info("git repository is dirty and --auto-snapshot is set, implying --snapshot")
		ctx.Snapshot = true
	}
	ctx.SkipPublish = ctx.Snapshot || options.skipPublish
	ctx.SkipAnnounce = ctx.Snapshot || options.skipPublish || options.skipAnnounce
	ctx.SkipValidate = ctx.Snapshot || options.skipValidate
	ctx.SkipSign = options.skipSign
	ctx.SkipSBOMCataloging = options.skipSBOMCataloging
	ctx.SkipDocker = options.skipDocker
	ctx.SkipKo = options.skipKo
	ctx.SkipBefore = options.skipBefore
	ctx.RmDist = options.rmDist

	// test only
	ctx.Deprecated = options.deprecated
}