// Copyright 2024 Dolthub, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package ci

import (
	"context"
	"fmt"

	"github.com/fatih/color"

	"github.com/dolthub/dolt/go/cmd/dolt/cli"
	"github.com/dolthub/dolt/go/cmd/dolt/commands"
	"github.com/dolthub/dolt/go/cmd/dolt/errhand"
	"github.com/dolthub/dolt/go/libraries/doltcore/env"
	"github.com/dolthub/dolt/go/libraries/doltcore/env/actions/dolt_ci"
	"github.com/dolthub/dolt/go/libraries/utils/argparser"
)

var listDocs = cli.CommandDocumentationContent{
	ShortDesc: "List Dolt continuous integration workflows",
	LongDesc:  "List Dolt continuous integration workflows",
	Synopsis: []string{
		"",
	},
}

type ListCmd struct{}

// Name implements cli.Command.
func (cmd ListCmd) Name() string {
	return "ls"
}

// Description implements cli.Command.
func (cmd ListCmd) Description() string {
	return listDocs.ShortDesc
}

// RequiresRepo implements cli.Command.
func (cmd ListCmd) RequiresRepo() bool {
	return true
}

// Docs implements cli.Command.
func (cmd ListCmd) Docs() *cli.CommandDocumentation {
	ap := cmd.ArgParser()
	return cli.NewCommandDocumentation(listDocs, ap)
}

// Hidden should return true if this command should be hidden from the help text
func (cmd ListCmd) Hidden() bool {
	return false
}

// ArgParser implements cli.Command.
func (cmd ListCmd) ArgParser() *argparser.ArgParser {
	ap := argparser.NewArgParserWithMaxArgs(cmd.Name(), 0)
	return ap
}

// Exec implements cli.Command.
func (cmd ListCmd) Exec(ctx context.Context, commandStr string, args []string, _ *env.DoltEnv, cliCtx cli.CliContext) int {
	ap := cmd.ArgParser()
	help, usage := cli.HelpAndUsagePrinters(cli.CommandDocsForCommandString(commandStr, listDocs, ap))
	cli.ParseArgsOrDie(ap, args, help)

	queryist, err := cliCtx.QueryEngine(ctx)
	if err != nil {
		return commands.HandleVErrAndExitCode(errhand.VerboseErrorFromError(err), usage)
	}

	hasTables, err := dolt_ci.HasDoltCITables(queryist.Queryist, queryist.Context)
	if err != nil {
		return commands.HandleVErrAndExitCode(errhand.VerboseErrorFromError(err), usage)
	}
	if !hasTables {
		return commands.HandleVErrAndExitCode(errhand.VerboseErrorFromError(fmt.Errorf("dolt ci has not been initialized, please initialize with: dolt ci init")), usage)
	}

	user, email, err := env.GetNameAndEmail(cliCtx.Config())
	if err != nil {
		return commands.HandleVErrAndExitCode(errhand.VerboseErrorFromError(err), usage)
	}
	wm := dolt_ci.NewWorkflowManager(user, email, queryist.Queryist.Query)

	workflows, err := wm.ListWorkflows(queryist.Context)
	if err != nil {
		return commands.HandleVErrAndExitCode(errhand.VerboseErrorFromError(err), usage)
	}

	for _, w := range workflows {
		cli.Println(color.CyanString(fmt.Sprintf("%s", w)))
	}

	return 0
}