/*
Copyright © 2026 Craig Williams <craig@avsdev.uk>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cmd

import (
	"log/slog"
	"os"
	"strings"

	"git.avsdev.uk/Go/job-search/internal/cli"
	cmdConfig "git.avsdev.uk/Go/job-search/internal/cli/config"
	cmdVersion "git.avsdev.uk/Go/job-search/internal/cli/version"
	"git.avsdev.uk/Go/job-search/internal/config"
	"git.avsdev.uk/Go/job-search/internal/log"
	"github.com/spf13/cobra"
)

var rootCmd = &cobra.Command{
	Use:   "job-search",
	Short: "JobSearch - AVSDev Future Opportunities!",
	Long: `JobSearch is a scraping tool for searching for possible contract
opportunities.
	`,
	CompletionOptions: cobra.CompletionOptions{
		HiddenDefaultCmd: true,
	},
	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
		// Check if the command is expecting to use terminal for messages
		if val, ok := cmd.Annotations["terminal_log"]; ok && val == "1" {
			log.LogToTerminal()
		}

		// Check for debug level via args
		dbgCount, _ := cmd.Flags().GetCount("debug")
		conf := config.JobSearchConfig{
			Logging: config.JobSearchConfigLogging{},
		}
		if dbgCount > 1 {
			conf.Logging.Level = "debug"
		} else if dbgCount > 0 {
			conf.Logging.Level = "info"
		}
		if conf.Logging.LogLevel() <= slog.LevelDebug {
			log.EnableDebug()
		} else if conf.Logging.LogLevel() <= slog.LevelInfo {
			log.EnableInfo()
		}

		// With logging set up, these will be visible if trace is active
		slog.Debug("root.PersistentPreRun")
		slog.Debug(
			"command: \"" +
				strings.Join(strings.Split(cmd.CommandPath(), " ")[1:], " ") +
				"\"",
		)

		// Always load config unless command indicates not to
		if val, ok := cmd.Annotations["no_config"]; !ok || val == "0" {
			// Load config - from specified file if provided
			cfgFile, _ := cmd.Flags().GetString("config")
			if err := config.Init(cfgFile, &conf); err != nil {
				return err
			}

			// Attach config to command context
			ctx := cli.WithConfig(cmd.Context(), conf)
			cmd.SetContext(ctx)

			// Change logging level based off newly loaded config
			if conf.Logging.LogLevel() <= slog.LevelDebug {
				log.EnableDebug()
			}
		}

		return nil
	},
	PersistentPostRun: func(cmd *cobra.Command, args []string) {
		slog.Debug("root.PersistentPostRun")
	},
}

// Execute, called by main.main() handles all child commands and appropriate
// flags.
func Execute() {
	err := rootCmd.Execute()
	if err != nil {
		os.Exit(1)
	}
}

func init() {
	cobra.EnableTraverseRunHooks = true

	log.Init()

	pFlags := rootCmd.PersistentFlags()
	pFlags.StringP(
		"config", "c", "",
		"config file (default: "+config.EtcConfigPath+"/config.yaml)")
	pFlags.CountP("debug", "d", "enable debug output (repeat for trace)")

	rootCmd.AddCommand(cmdVersion.NewCommand())
	rootCmd.AddCommand(cmdConfig.NewCommand())
}