package cmd

import (
	"fmt"

	"git.mlow.ca/mlow/lmcli/pkg/api"
	cmdutil "git.mlow.ca/mlow/lmcli/pkg/cmd/util"
	"git.mlow.ca/mlow/lmcli/pkg/lmcli"
	"github.com/spf13/cobra"
)

func PromptCmd(ctx *lmcli.Context) *cobra.Command {
	cmd := &cobra.Command{
		Use:   "prompt [message]",
		Short: "Do a one-shot prompt",
		Long:  `Prompt the Large Language Model and get a response.`,
		RunE: func(cmd *cobra.Command, args []string) error {
			err := validateGenerationFlags(ctx, cmd)
			if err != nil {
				return err
			}

			input := inputFromArgsOrEditor(args, "# Write your prompt below\n", "")
			if input == "" {
				return fmt.Errorf("No message was provided.")
			}

			var messages []api.Message

			system := ctx.Config.GetSystemPrompt()
			if system != "" {
				messages = append(messages, api.Message{
					Role:    api.MessageRoleSystem,
					Content: system,
				})
			}

			messages = append(messages, api.Message{
				Role:    api.MessageRoleUser,
				Content: input,
			})

			_, err = cmdutil.Prompt(ctx, messages, nil)
			if err != nil {
				return fmt.Errorf("Error fetching LLM response: %v", err)
			}
			return nil
		},
	}

	applyGenerationFlags(ctx, cmd)
	return cmd
}