// Package controls contains strict controls.
package controls

import (
	"github.com/gruntwork-io/terragrunt/internal/errors"
	"github.com/gruntwork-io/terragrunt/internal/strict"
)

const (
	// DeprecatedCommands is the control that prevents the use of deprecated commands.
	DeprecatedCommands = "deprecated-commands"

	// DeprecatedFlags is the control that prevents the use of deprecated flag names.
	DeprecatedFlags = "deprecated-flags"

	// DeprecatedEnvVars is the control that prevents the use of deprecated env vars.
	DeprecatedEnvVars = "deprecated-env-vars"

	// DeprecatedConfigs is the control that prevents the use of deprecated config fields/section/..., anything related to config syntax.
	DeprecatedConfigs = "deprecated-configs"

	// LegacyLogs is a control group for legacy log flags that were in use before the log was redesign.
	LegacyLogs = "legacy-logs"

	// TerragruntPrefixFlags is a control group for flags that used to have the `terragrunt-` prefix.
	TerragruntPrefixFlags = "terragrunt-prefix-flags"

	// TerragruntPrefixEnvVars is a control group for env vars that used to have the `TERRAGRUNT_` prefix.
	TerragruntPrefixEnvVars = "terragrunt-prefix-env-vars"

	// DefaultCommands is a control group for TF commands that were used as default commands,
	// namely without using the parent `run` commands and were not shortcuts commands.
	DefaultCommands = "default-commands"

	// RootTerragruntHCL is the control that prevents usage of a `terragrunt.hcl` file as the root of Terragrunt configurations.
	RootTerragruntHCL = "root-terragrunt-hcl"

	// SkipDependenciesInputs is the control related to the deprecated dependency inputs feature.
	// Dependency inputs are now disabled by default for performance.
	SkipDependenciesInputs = "skip-dependencies-inputs"

	// RequireExplicitBootstrap is the control that prevents the backend for remote state from being bootstrapped unless the `--backend-bootstrap` flag is specified.
	RequireExplicitBootstrap = "require-explicit-bootstrap"

	// CLIRedesign is the control that prevents the use of commands deprecated as part of the CLI Redesign.
	CLIRedesign = "cli-redesign"

	// LegacyAll is a control group for the legacy *-all commands.
	// This control is marked as completed since the commands have been removed.
	LegacyAll = "legacy-all"

	// BareInclude is the control that prevents the use of the `include` block without a label.
	BareInclude = "bare-include"

	// DoubleStar enables the use of the `**` glob pattern as a way to match files in subdirectories.
	// and will log a warning when using **/*
	DoubleStar = "double-star"

	// QueueExcludeExternal is the control that prevents the use of the deprecated `--queue-exclude-external` flag.
	QueueExcludeExternal = "queue-exclude-external"

	// QueueStrictInclude is the control that prevents the use of the deprecated `--queue-strict-include` flag.
	QueueStrictInclude = "queue-strict-include"

	// UnitsThatInclude is the control that prevents the use of the deprecated `--units-that-include` flag.
	UnitsThatInclude = "units-that-include"

	// DisableCommandValidation is the control that prevents the use of the deprecated `--disable-command-validation` flag.
	DisableCommandValidation = "disable-command-validation"

	// NoDestroyDependenciesCheck is the control that prevents the use of the deprecated `--no-destroy-dependencies-check` flag.
	NoDestroyDependenciesCheck = "no-destroy-dependencies-check"

	// InternalTFLint is the control that prevents the use of the deprecated embedded version of tflint.
	InternalTFLint = "legacy-internal-tflint"

	// DeprecatedHiddenFlag is the control that prevents the use of the deprecated `--hidden` flag.
	DeprecatedHiddenFlag = "deprecated-hidden-flag"

	// DisableDependentModules is the control that prevents the use of the deprecated `--disable-dependent-modules` flag.
	DisableDependentModules = "disable-dependent-modules"

	// FastCopy is the control that switches `include_in_copy` and
	// `exclude_from_copy` pattern matching from zglob to gobwas.
	FastCopy = "fast-copy"

	// LegacyGCSPublicPrefix preserves the pre-v1.0.5 behavior of auto-prefixing
	// plain `https://www.googleapis.com/storage/...` source URLs with `gcs::`
	// so they route through the credentialed gcs getter. Default behavior keeps
	// the rewrite (with a deprecation warning); enabling the control disables
	// the rewrite and routes the URL through the http getter for anonymous
	// access.
	LegacyGCSPublicPrefix = "legacy-gcs-public-prefix"
)

// LegacyGCSDeprecationWarning is the warning text emitted when a plain
// https://www.googleapis.com/storage/... source URL is rewritten to use the
// credentialed gcs getter.
const LegacyGCSDeprecationWarning = "Plain `https://www.googleapis.com/storage/...` source URLs are downloaded using GCS " +
	"credentials for backward compatibility. Add the `gcs::` prefix explicitly to keep using GCS credentials and " +
	"silence this warning, or enable the `legacy-gcs-public-prefix` strict control to download anonymously instead." +
	" This will be the default behavior of Terragrunt in the future."

// IsFastCopyEnabled reports whether the `fast-copy` strict control is enabled.
func IsFastCopyEnabled(strictControls strict.Controls) bool {
	return len(strictControls.FilterByNames(FastCopy).FilterByEnabled()) > 0
}

//nolint:lll
func New() strict.Controls {
	skipDependenciesInputsControl := &Control{
		Name:        SkipDependenciesInputs,
		Description: "Controls whether to allow the deprecated dependency inputs feature. Dependency inputs are now disabled by default for performance. Use dependency outputs instead.",
		Error:       errors.Errorf("Reading inputs from dependencies is no longer supported. To acquire values from dependencies, use outputs."),
		Warning:     "Reading inputs from dependencies has been deprecated and is now disabled by default for performance. Use dependency outputs instead.",
		Status:      strict.CompletedStatus,
	}

	requireExplicitBootstrapControl := &Control{
		Name:        RequireExplicitBootstrap,
		Description: "Don't bootstrap backends by default. When enabled, users must supply `--backend-bootstrap` explicitly to automatically bootstrap backend resources.",
		Error:       errors.Errorf("Bootstrap backend for remote state by default is no longer supported. Use `--backend-bootstrap` flag instead."),
		Warning:     "Bootstrapping backend resources by default is deprecated functionality, and will not be the default behavior in a future version of Terragrunt. Use the explicit `--backend-bootstrap` flag to automatically provision backend resources before they're needed.",
		Status:      strict.CompletedStatus,
	}

	controls := strict.Controls{
		&Control{
			Name:        DeprecatedCommands,
			Description: "Prevents deprecated commands from being used.",
		},
		&Control{
			Name:        DeprecatedFlags,
			Description: "Prevents deprecated flags from being used.",
		},
		&Control{
			Name:        DeprecatedEnvVars,
			Description: "Prevents deprecated env vars from being used.",
		},
		&Control{
			Name:        DeprecatedConfigs,
			Description: "Prevents deprecated config syntax from being used.",
			Subcontrols: strict.Controls{
				skipDependenciesInputsControl,
				requireExplicitBootstrapControl,
			},
		},
		skipDependenciesInputsControl,
		requireExplicitBootstrapControl,
		&Control{
			Name:        CLIRedesign,
			Description: "Prevents the use of commands deprecated as part of the CLI Redesign.",
		},
		&Control{
			Name:        LegacyAll,
			Description: "Prevents old *-all commands such as plan-all from being used.",
			Status:      strict.CompletedStatus,
		},
		&Control{
			Name:        "spin-up",
			Description: "Prevents the deprecated spin-up command from being used.",
			Status:      strict.CompletedStatus,
		},
		&Control{
			Name:        "tear-down",
			Description: "Prevents the deprecated tear-down command from being used.",
			Status:      strict.CompletedStatus,
		},
		&Control{
			Name:        "plan-all",
			Description: "Prevents the deprecated plan-all command from being used.",
			Status:      strict.CompletedStatus,
		},
		&Control{
			Name:        "apply-all",
			Description: "Prevents the deprecated apply-all command from being used.",
			Status:      strict.CompletedStatus,
		},
		&Control{
			Name:        "destroy-all",
			Description: "Prevents the deprecated destroy-all command from being used.",
			Status:      strict.CompletedStatus,
		},
		&Control{
			Name:        "output-all",
			Description: "Prevents the deprecated output-all command from being used.",
			Status:      strict.CompletedStatus,
		},
		&Control{
			Name:        "validate-all",
			Description: "Prevents the deprecated validate-all command from being used.",
			Status:      strict.CompletedStatus,
		},

		&Control{
			Name:        TerragruntPrefixFlags,
			Description: "Prevents deprecated flags with `terragrunt-` prefixes from being used.",
			Status:      strict.CompletedStatus,
		},
		&Control{
			Name:        TerragruntPrefixEnvVars,
			Description: "Prevents deprecated env vars with `TERRAGRUNT_` prefixes from being used.",
		},
		&Control{
			Name:        DefaultCommands,
			Description: "Prevents default commands from being used.",
		},
		&Control{
			Name:        LegacyLogs,
			Description: "Prevents old log flags from being used.",
		},
		&Control{
			Name:        RootTerragruntHCL,
			Description: "Throw an error when users try to reference a root terragrunt.hcl file using find_in_parent_folders.",
			Error:       errors.New("Using `terragrunt.hcl` as the root of Terragrunt configurations is an anti-pattern, and no longer supported. Use a differently named file like `root.hcl` instead. For more information, see https://docs.terragrunt.com/migrate/migrating-from-root-terragrunt-hcl"),
			Warning:     "Using `terragrunt.hcl` as the root of Terragrunt configurations is an anti-pattern, and no longer recommended. In a future version of Terragrunt, this will result in an error. You are advised to use a differently named file like `root.hcl` instead. For more information, see https://docs.terragrunt.com/migrate/migrating-from-root-terragrunt-hcl",
		},

		&Control{
			Name:        BareInclude,
			Description: "Prevents the use of the `include` block without a label.",
			Error:       errors.New("Using an `include` block without a label is deprecated. Please use the `include` block with a label instead."),
			Warning:     "Using an `include` block without a label is deprecated. Please use the `include` block with a label instead. For more information, see https://docs.terragrunt.com/migrate/bare-include/",
		},

		&Control{
			Name:        DoubleStar,
			Description: "Use the `**` glob pattern to select all files in a directory and its subdirectories.",
			Error:       errors.New("Using `**` to select all files in a directory and its subdirectories is enabled. **/* now matches subdirectories with at least a depth of one."),
			Warning:     "Using `**` to select all files in a directory and its subdirectories is enabled. **/* now matches subdirectories with at least a depth of one.",
			Status:      strict.CompletedStatus,
		},
		&Control{
			Name:        QueueExcludeExternal,
			Description: "Prevents the use of the deprecated `--queue-exclude-external` flag.",
			Error:       errors.New("The `--queue-exclude-external` flag is no longer supported. External dependencies are now excluded by default. Use --queue-include-external to include them."),
			Warning:     "The `--queue-exclude-external` flag is deprecated and will be removed in a future version of Terragrunt. External dependencies are now excluded by default.",
		},
		&Control{
			Name:        QueueStrictInclude,
			Description: "Prevents the use of the deprecated `--queue-strict-include` flag.",
			Error:       errors.New("The `--queue-strict-include` flag is no longer supported. The behavior of Terragrunt when using `--queue-strict-include` is now the default behavior."),
			Warning:     "The `--queue-strict-include` flag is deprecated and will be removed in a future version of Terragrunt. The behavior of Terragrunt when using `--queue-strict-include` is now the default behavior.",
		},
		&Control{
			Name:        UnitsThatInclude,
			Description: "Prevents the use of the deprecated `--units-that-include` flag.",
			Error:       errors.New("The `--units-that-include` flag is no longer supported. Use `--filter='reading=<path>'` to include units that include or read the specified configuration."),
			Warning:     "The `--units-that-include` flag is deprecated and will be removed in a future version of Terragrunt. Use `--filter='reading=<path>'` to include units that include or read the specified configuration.",
		},
		&Control{
			Name:        DisableCommandValidation,
			Description: "Prevents the use of the deprecated `--disable-command-validation` flag. Command validation has been removed entirely.",
			Error:       errors.New("The `--disable-command-validation` flag is no longer supported. Command validation has been removed entirely, and you can pass any command to `terragrunt run`."),
			Warning:     "The `--disable-command-validation` flag is deprecated and will be removed in a future version of Terragrunt. Command validation has been removed entirely, and you can pass any command to `terragrunt run`.",
		},
		&Control{
			Name:        NoDestroyDependenciesCheck,
			Description: "Prevents the use of the deprecated `--no-destroy-dependencies-check` flag. This flag is now ignored. Use `--destroy-dependencies-check` to enable dependency checks during destroy operations.",
			Error:       errors.New("The `--no-destroy-dependencies-check` flag is no longer supported. Use `--destroy-dependencies-check` to enable dependency checks during destroy operations."),
			Warning:     "The `--no-destroy-dependencies-check` flag is deprecated and will be removed in a future version of Terragrunt. This flag is now ignored. Use `--destroy-dependencies-check` to enable dependency checks during destroy operations.",
		},
		&Control{
			Name:        InternalTFLint,
			Description: "Prevents the use of the deprecated embedded version of tflint, instead treating `tflint` as a normal hook.",
			Error:       errors.New("The embedded version of tflint is no longer supported. Use the `--terragrunt-external-tflint` flag in your hook to opt in to running tflint externally."),
			Warning:     "The embedded version of tflint is deprecated and will be removed in a future version of Terragrunt. Use the `--terragrunt-external-tflint` flag in your hook to opt in to running tflint externally and avoid this warning.",
		},
		&Control{
			Name:        DeprecatedHiddenFlag,
			Description: "Prevents the use of the deprecated `--hidden` flag.",
			Error:       errors.New("The `--hidden` flag is no longer supported. Hidden directories are now included by default. Use `--no-hidden` to exclude them."),
			Warning:     "The `--hidden` flag is deprecated and will be removed in a future version of Terragrunt. Hidden directories are now included by default. Use `--no-hidden` to exclude them.",
		},
		&Control{
			Name:        DisableDependentModules,
			Description: "Prevents the use of the deprecated `--disable-dependent-modules` flag.",
			Error:       errors.New("The `--disable-dependent-modules` flag is no longer supported. Dependent modules discovery has been removed from `terragrunt render`."),
			Warning:     "The `--disable-dependent-modules` flag is deprecated and will be removed in a future version of Terragrunt. Dependent modules discovery has been removed from `terragrunt render`, so this flag has no effect.",
		},
		&Control{
			Name:        FastCopy,
			Description: "Switches `include_in_copy` and `exclude_from_copy` pattern matching from zglob to gobwas. `**` no longer collapses when adjacent to a wildcard, so `a/**/*.tf` will not match `a/foo.tf`. Use brace alternation like `{*.tf,**/*.tf}` to cover both depths.",
		},
		&Control{
			Name:        LegacyGCSPublicPrefix,
			Description: "Stops auto-prefixing plain `https://www.googleapis.com/storage/...` source URLs with `gcs::`. Pre-v1.0.5 Terragrunt routed those URLs through the credentialed gcs getter; v1.0.5+ routes them through the http getter for anonymous access. The legacy prefix-rewrite is restored by default with a deprecation warning. Enable this control to opt into the new behavior and silence the warning.",
			Warning:     LegacyGCSDeprecationWarning,
		},
	}

	return controls
}
