// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.

package view

import (
	"encoding/json"
	"fmt"

	"github.com/charmbracelet/lipgloss"
	"github.com/spf13/cobra"
	"go.probo.inc/probo/pkg/cli/api"
	"go.probo.inc/probo/pkg/cmd/cmdutil"
	"go.probo.inc/probo/pkg/coredata"
	"go.probo.inc/probo/pkg/docgen"
)

const viewQuery = `
query($id: ID!) {
  node(id: $id) {
    __typename
    ... on Control {
      id
      sectionTitle
      name
      description
      bestPractice
      notImplementedJustification
      maturityLevel
      framework {
        id
        name
      }
      createdAt
      updatedAt
    }
  }
}
`

type viewResponse struct {
	Node *struct {
		Typename                    string  `json:"__typename"`
		ID                          string  `json:"id"`
		SectionTitle                string  `json:"sectionTitle"`
		Name                        string  `json:"name"`
		Description                 *string `json:"description"`
		BestPractice                bool    `json:"bestPractice"`
		NotImplementedJustification *string `json:"notImplementedJustification"`
		MaturityLevel               string  `json:"maturityLevel"`
		Framework                   struct {
			ID   string `json:"id"`
			Name string `json:"name"`
		} `json:"framework"`
		CreatedAt string `json:"createdAt"`
		UpdatedAt string `json:"updatedAt"`
	} `json:"node"`
}

func NewCmdView(f *cmdutil.Factory) *cobra.Command {
	var flagOutput *string

	cmd := &cobra.Command{
		Use:   "view <id>",
		Short: "View a control",
		Args:  cobra.ExactArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			if err := cmdutil.ValidateOutputFlag(flagOutput); err != nil {
				return err
			}

			cfg, err := f.Config()
			if err != nil {
				return err
			}

			host, hc, err := cfg.DefaultHost()
			if err != nil {
				return err
			}

			client := api.NewClient(
				host,
				hc.Token,
				"/api/console/v1/graphql",
				cfg.HTTPTimeoutDuration(),
				cmdutil.TokenRefreshOption(cfg, host, hc),
			)

			data, err := client.Do(
				viewQuery,
				map[string]any{"id": args[0]},
			)
			if err != nil {
				return err
			}

			var resp viewResponse
			if err := json.Unmarshal(data, &resp); err != nil {
				return fmt.Errorf("cannot parse response: %w", err)
			}

			if resp.Node == nil {
				return fmt.Errorf("control %s not found", args[0])
			}

			if resp.Node.Typename != "Control" {
				return fmt.Errorf("expected Control node, got %s", resp.Node.Typename)
			}

			if *flagOutput == cmdutil.OutputJSON {
				return cmdutil.PrintJSON(f.IOStreams.Out, resp.Node)
			}

			c := resp.Node
			out := f.IOStreams.Out

			bold := lipgloss.NewStyle().Bold(true)
			label := lipgloss.NewStyle().Foreground(lipgloss.Color("242")).Width(22)

			_, _ = fmt.Fprintf(out, "%s\n\n", bold.Render(c.Name))

			_, _ = fmt.Fprintf(out, "%s%s\n", label.Render("ID:"), c.ID)
			_, _ = fmt.Fprintf(out, "%s%s\n", label.Render("Section:"), c.SectionTitle)
			_, _ = fmt.Fprintf(out, "%s%s (%s)\n", label.Render("Framework:"), c.Framework.Name, c.Framework.ID)

			if c.Description != nil && *c.Description != "" {
				_, _ = fmt.Fprintf(out, "%s%s\n", label.Render("Description:"), *c.Description)
			}

			bp := "No"
			if c.BestPractice {
				bp = "Yes"
			}
			_, _ = fmt.Fprintf(out, "%s%s\n", label.Render("Best Practice:"), bp)
			_, _ = fmt.Fprintf(out, "%s%s\n", label.Render("Maturity:"), docgen.MaturityLabel(coredata.ControlMaturityLevel(c.MaturityLevel)))
			if c.MaturityLevel == "NONE" && c.NotImplementedJustification != nil && *c.NotImplementedJustification != "" {
				_, _ = fmt.Fprintf(out, "%s%s\n", label.Render("Justification:"), *c.NotImplementedJustification)
			}

			_, _ = fmt.Fprintln(out)
			_, _ = fmt.Fprintf(out, "%s%s\n", label.Render("Created:"), cmdutil.FormatTime(c.CreatedAt))
			_, _ = fmt.Fprintf(out, "%s%s\n", label.Render("Updated:"), cmdutil.FormatTime(c.UpdatedAt))

			return nil
		},
	}

	flagOutput = cmdutil.AddOutputFlag(cmd)

	return cmd
}