package pierre

import (
	"context"
	"io"

	"git.schreifuchs.ch/schreifuchs/pierre-bot/internal/chatter"
)

// Service holds the core collaborators and configuration for Pierre.
// The order of the fields is intentional: configuration fields first (used
// during initialization) followed by the adapters. This prevents accidental
// changes to the serialized layout if encoding/gob or encoding/json is used
// elsewhere in the future.
type Service struct {
	maxChunkSize    int
	guidelines      []string
	disableComments bool
	git             GitAdapter
	chat            ChatAdapter
}

func New(chat ChatAdapter, git GitAdapter, maxChunkSize int, guidelines []string, disableComments bool) *Service {
	return &Service{
		git:             git,
		chat:            chat,
		maxChunkSize:    maxChunkSize,
		guidelines:      guidelines,
		disableComments: disableComments,
	}
}

type GitAdapter interface {
	GetDiff(ctx context.Context, owner, repo string, prID int) (io.ReadCloser, error)
	AddComment(ctx context.Context, owner, repo string, prID int, comment Comment) error
}

type ChatAdapter interface {
	GenerateStructured(ctx context.Context, messages []chatter.Message, target interface{}) error
	GetProviderName() string
}