package builder

import (
	"context"
	"git.dragse.it/anthrove/e621-sdk-go/pkg/e621/endpoints"
	"git.dragse.it/anthrove/e621-sdk-go/pkg/e621/model"
	"strconv"
)

// NotesBuilder represents a builder for constructing queries to retrieve notes.
type NotesBuilder interface {
	// SearchInBody sets the query to search for notes containing a specific text in their body.
	SearchInBody(body string) NotesBuilder
	// NoteID sets the query to search for a note with a specific note ID.
	NoteID(noteID int) NotesBuilder
	// SearchTags sets the query to search for notes containing specific tags.
	SearchTags(tags string) NotesBuilder
	// SearchCreatorID sets the query to search for notes created by a specific user (by their user ID).
	SearchCreatorID(creatorID int) NotesBuilder
	// SearchCreatorName sets the query to search for notes created by a specific user (by their username).
	SearchCreatorName(creatorName string) NotesBuilder
	// Active sets whether to search for active or inactive notes.
	Active(isActive bool) NotesBuilder
	// SetLimit sets the maximum number of notes to retrieve.
	SetLimit(limitNotes int) NotesBuilder
	// Execute sends the constructed query and returns a slice of notes and an error, if any.
	Execute() ([]model.Note, error)
}

// NewGetNotesBuilder creates a new instance of NotesBuilder with the provided RequestContext.
//
// Parameters:
//   - requestContext: The context for the API request, including the host, user agent, username, and API key.
//
// Returns:
//   - NotesBuilder: An instance of the NotesBuilder interface.
func NewGetNotesBuilder(requestContext model.RequestContext) NotesBuilder {
	return &getNotes{
		requestContext: requestContext,
		query:          make(map[string]string),
	}
}

// getNotes is an implementation of the NotesBuilder interface.
type getNotes struct {
	requestContext model.RequestContext
	query          map[string]string
}

// SearchInBody sets the query to search for notes containing a specific text in their body.
//
// Parameters:
//   - body: The text to search for in the notes' body.
//
// Returns:
//   - NotesBuilder: The instance of the NotesBuilder for method chaining.
func (g *getNotes) SearchInBody(body string) NotesBuilder {
	g.query["search[body_matches]"] = body
	return g
}

// NoteID sets the query to search for a note with a specific note ID.
//
// Parameters:
//   - noteID: The ID of the note to be retrieved.
//
// Returns:
//   - NotesBuilder: The instance of the NotesBuilder for method chaining.
func (g *getNotes) NoteID(noteID int) NotesBuilder {
	g.query["search[post_id]"] = strconv.Itoa(noteID)
	return g
}

// SearchTags sets the query to search for notes containing specific tags.
//
// Parameters:
//   - tags: The tags to search for in the notes.
//
// Returns:
//   - NotesBuilder: The instance of the NotesBuilder for method chaining.
func (g *getNotes) SearchTags(tags string) NotesBuilder {
	g.query["search[post_tags_match]"] = tags
	return g
}

// SearchCreatorID sets the query to search for notes created by a specific user (by their user ID).
//
// Parameters:
//   - creatorID: The ID of the user who created the notes.
//
// Returns:
//   - NotesBuilder: The instance of the NotesBuilder for method chaining.
func (g *getNotes) SearchCreatorID(creatorID int) NotesBuilder {
	g.query["search[creator_id]"] = strconv.Itoa(creatorID)
	return g
}

// SearchCreatorName sets the query to search for notes created by a specific user (by their username).
//
// Parameters:
//   - creatorName: The username of the user who created the notes.
//
// Returns:
//   - NotesBuilder: The instance of the NotesBuilder for method chaining.
func (g *getNotes) SearchCreatorName(creatorName string) NotesBuilder {
	g.query["search[creator_name]"] = creatorName
	return g
}

// Active sets whether to search for active or inactive notes.
//
// Parameters:
//   - isActive: A boolean indicating whether to search for active notes (true) or inactive notes (false).
//
// Returns:
//   - NotesBuilder: The instance of the NotesBuilder for method chaining.
func (g *getNotes) Active(isActive bool) NotesBuilder {
	g.query["search[is_active]"] = strconv.FormatBool(isActive)
	return g
}

// SetLimit sets the maximum number of notes to retrieve.
//
// Parameters:
//   - limitNotes: The maximum number of notes to retrieve.
//
// Returns:
//   - NotesBuilder: The instance of the NotesBuilder for method chaining.
func (g *getNotes) SetLimit(limitNotes int) NotesBuilder {
	g.query["limit"] = strconv.Itoa(limitNotes)
	return g
}

// Execute sends the constructed query and returns a slice of notes and an error, if any.
//
// Returns:
//   - []model.Note: A slice of notes.
//   - error: An error, if any, encountered during the API request or response handling.
func (g *getNotes) Execute() ([]model.Note, error) {
	if g.requestContext.RateLimiter != nil {
		err := g.requestContext.RateLimiter.Wait(context.Background())
		if err != nil {
			return nil, err
		}
	}
	notes, err := endpoints.GetNotes(g.requestContext, g.query)
	if err != nil {
		return nil, err
	}
	return notes, nil
}