package migratecli

import (
	"context"
	"fmt"

	"gitea.auvem.com/go-toolkit/appcli"
	"gitea.auvem.com/go-toolkit/migrate"
	"github.com/pressly/goose/v3"
	"github.com/urfave/cli/v3"
)

// MigrateCmd returns the main migrate command.
func MigrateCmd(sqlo migrate.SQLOFunc, directDeps appcli.DepFn, childDeps appcli.DepFn) *cli.Command {
	return appcli.NewCommand(&cli.Command{
		Name:     "migrate",
		Usage:    "Migrate the database",
		Commands: AllSubcommands(sqlo, childDeps),
	}, directDeps)
}

// AllSubcommands returns all subcommands of the migrate command.
func AllSubcommands(sqlo migrate.SQLOFunc, deps appcli.DepFn) []*cli.Command {
	return []*cli.Command{
		MigrateStatusCmd(sqlo, deps),
		MigrateCreateCmd(sqlo, deps),
		MigrateUpCmd(sqlo, deps),
		MigrateUpToCmd(sqlo, deps),
		MigrateDownCmd(sqlo, deps),
		MigrateDownToCmd(sqlo, deps),
		MigrateRedoCmd(sqlo, deps),
	}
}

func withProvider(ctx context.Context, fn func(context.Context, *goose.Provider) error) error {
	p, err := migrate.Provider()
	if err != nil {
		return err
	}
	return fn(ctx, p)
}

// MigrateStatusCmd returns a command to get database migration status.
func MigrateStatusCmd(sqlo migrate.SQLOFunc, deps appcli.DepFn) *cli.Command {
	return appcli.NewCommand(&cli.Command{
		Name:  "status",
		Usage: "Get database migration status",
		Action: func(ctx context.Context, cmd *cli.Command) error {
			return migrate.PrintMigrationStatus(ctx)
		},
	}, deps)
}

// MigrateCreateCmd returns a command to create a new migration file.
func MigrateCreateCmd(sqlo migrate.SQLOFunc, deps appcli.DepFn) *cli.Command {
	return appcli.NewCommand(&cli.Command{
		Name:  "create",
		Usage: "Create a new migration",
		Arguments: []cli.Argument{
			&cli.StringArg{Name: "name", UsageText: "Name of the migration"},
			&cli.StringArg{Name: "type", UsageText: "Type of the migration (e.g., sql, go)"},
		},
		Flags: []cli.Flag{
			&cli.BoolFlag{
				Name:    "sequential",
				Aliases: []string{"s"},
				Usage:   "Create migration in sequential mode",
			},
		},
		Action: func(ctx context.Context, cmd *cli.Command) error {
			if cmd.Bool("sequential") {
				goose.SetSequential(true)
			}
			cfg := migrate.MigrationsConfig()
			dir := cfg.BasePath
			if dir == "." || dir == "" {
				dir = "migrations"
			}
			if err := goose.Create(sqlo(), dir, cmd.StringArg("name"), cmd.StringArg("type")); err != nil {
				return fmt.Errorf("couldn't create migration: %w", err)
			}
			return nil
		},
	}, deps)
}

// MigrateUpCmd returns a command to apply all available database migrations.
func MigrateUpCmd(sqlo migrate.SQLOFunc, deps appcli.DepFn) *cli.Command {
	return appcli.NewCommand(&cli.Command{
		Name:  "up",
		Usage: "Apply all available database migrations",
		Action: func(ctx context.Context, cmd *cli.Command) error {
			return withProvider(ctx, func(ctx context.Context, p *goose.Provider) error {
				_, err := p.Up(ctx)
				return err
			})
		},
	}, deps)
}

// MigrateUpToCmd returns a command to apply migrations up to a specific version.
func MigrateUpToCmd(sqlo migrate.SQLOFunc, deps appcli.DepFn) *cli.Command {
	return appcli.NewCommand(&cli.Command{
		Name:  "up-to",
		Usage: "Apply all available database migrations up to a specific version",
		Arguments: []cli.Argument{
			&cli.Int64Arg{
				Name:      "version",
				UsageText: "Target version to migrate up to",
			},
		},
		Action: func(ctx context.Context, cmd *cli.Command) error {
			version := cmd.Int64("version")
			return withProvider(ctx, func(ctx context.Context, p *goose.Provider) error {
				_, err := p.UpTo(ctx, version)
				return err
			})
		},
	}, deps)
}

// MigrateDownCmd returns a command to rollback the most recent database migration.
func MigrateDownCmd(sqlo migrate.SQLOFunc, deps appcli.DepFn) *cli.Command {
	return appcli.NewCommand(&cli.Command{
		Name:  "down",
		Usage: "Rollback the most recent database migration",
		Action: func(ctx context.Context, cmd *cli.Command) error {
			return withProvider(ctx, func(ctx context.Context, p *goose.Provider) error {
				_, err := p.Down(ctx)
				return err
			})
		},
	}, deps)
}

// MigrateDownToCmd returns a command to rollback migrations down to a specific version.
func MigrateDownToCmd(sqlo migrate.SQLOFunc, deps appcli.DepFn) *cli.Command {
	return appcli.NewCommand(&cli.Command{
		Name:  "down-to",
		Usage: "Rollback all database migrations down to a specific version",
		Arguments: []cli.Argument{
			&cli.Int64Arg{
				Name:      "version",
				UsageText: "Target version to rollback to",
			},
		},
		Action: func(ctx context.Context, cmd *cli.Command) error {
			version := cmd.Int64("version")
			return withProvider(ctx, func(ctx context.Context, p *goose.Provider) error {
				_, err := p.DownTo(ctx, version)
				return err
			})
		},
	}, deps)
}

// MigrateRedoCmd returns a command to rollback and reapply the most recent migration.
func MigrateRedoCmd(sqlo migrate.SQLOFunc, deps appcli.DepFn) *cli.Command {
	return appcli.NewCommand(&cli.Command{
		Name:  "redo",
		Usage: "Rollback the most recent database migration and reapply it",
		Action: func(ctx context.Context, cmd *cli.Command) error {
			return withProvider(ctx, func(ctx context.Context, p *goose.Provider) error {
				if _, err := p.Down(ctx); err != nil {
					return err
				}
				_, err := p.UpByOne(ctx)
				return err
			})
		},
	}, deps)
}