// Copyright (c) 2026 Probo Inc <hello@probo.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

package coredata

import (
	"context"
	"encoding/json"
	"fmt"
	"maps"
	"time"

	"github.com/jackc/pgx/v5"
	"go.gearno.de/kit/pg"
	"go.probo.inc/probo/pkg/gid"
	"go.probo.inc/probo/pkg/page"
)

type (
	WebhookEvent struct {
		ID                    gid.GID            `db:"id"`
		WebhookDataID         gid.GID            `db:"webhook_data_id"`
		WebhookSubscriptionID gid.GID            `db:"webhook_subscription_id"`
		Status                WebhookEventStatus `db:"status"`
		Response              json.RawMessage    `db:"response"`
		CreatedAt             time.Time          `db:"created_at"`
	}

	WebhookEvents []*WebhookEvent
)

func (w WebhookEvent) CursorKey(orderBy WebhookEventOrderField) page.CursorKey {
	switch orderBy {
	case WebhookEventOrderFieldCreatedAt:
		return page.NewCursorKey(w.ID, w.CreatedAt)
	}

	panic(fmt.Sprintf("unsupported order by: %s", orderBy))
}

func (w *WebhookEvents) LoadBySubscriptionID(
	ctx context.Context,
	conn pg.Querier,
	scope Scoper,
	webhookSubscriptionID gid.GID,
	cursor *page.Cursor[WebhookEventOrderField],
) error {
	q := `
SELECT
    id,
    webhook_data_id,
    webhook_subscription_id,
    status,
    response,
    created_at
FROM
    webhook_events
WHERE
    %s
    AND webhook_subscription_id = @webhook_subscription_id
    AND %s
`
	q = fmt.Sprintf(q, scope.SQLFragment(), cursor.SQLFragment())

	args := pgx.NamedArgs{"webhook_subscription_id": webhookSubscriptionID}
	maps.Copy(args, scope.SQLArguments())
	maps.Copy(args, cursor.SQLArguments())

	rows, err := conn.Query(ctx, q, args)
	if err != nil {
		return fmt.Errorf("cannot query webhook events: %w", err)
	}

	events, err := pgx.CollectRows(rows, pgx.RowToAddrOfStructByName[WebhookEvent])
	if err != nil {
		return fmt.Errorf("cannot collect webhook events: %w", err)
	}

	*w = events

	return nil
}

func (w *WebhookEvents) CountBySubscriptionID(
	ctx context.Context,
	conn pg.Querier,
	scope Scoper,
	webhookSubscriptionID gid.GID,
) (int, error) {
	q := `
SELECT COUNT(*)
FROM webhook_events
WHERE %s
    AND webhook_subscription_id = @webhook_subscription_id
`
	q = fmt.Sprintf(q, scope.SQLFragment())

	args := pgx.StrictNamedArgs{"webhook_subscription_id": webhookSubscriptionID}
	maps.Copy(args, scope.SQLArguments())

	var count int
	if err := conn.QueryRow(ctx, q, args).Scan(&count); err != nil {
		return 0, fmt.Errorf("cannot count webhook events: %w", err)
	}

	return count, nil
}

func (w *WebhookEvent) Insert(
	ctx context.Context,
	conn pg.Tx,
	scope Scoper,
) error {
	q := `
INSERT INTO webhook_events (
    id,
    tenant_id,
    webhook_data_id,
    webhook_subscription_id,
    status,
    response,
    created_at
)
VALUES (
    @id,
    @tenant_id,
    @webhook_data_id,
    @webhook_subscription_id,
    @status,
    @response,
    @created_at
)
`

	args := pgx.StrictNamedArgs{
		"id":                      w.ID,
		"tenant_id":               scope.GetTenantID(),
		"webhook_data_id":         w.WebhookDataID,
		"webhook_subscription_id": w.WebhookSubscriptionID,
		"status":                  w.Status,
		"response":                w.Response,
		"created_at":              w.CreatedAt,
	}

	_, err := conn.Exec(ctx, q, args)
	if err != nil {
		return fmt.Errorf("cannot insert webhook event: %w", err)
	}

	return nil
}

func (w *WebhookEvent) UpdateStatus(
	ctx context.Context,
	conn pg.Tx,
	scope Scoper,
) error {
	q := `
UPDATE webhook_events
SET
    status = @status,
    response = @response
WHERE %s
    AND id = @id
`

	q = fmt.Sprintf(q, scope.SQLFragment())

	args := pgx.StrictNamedArgs{
		"id":       w.ID,
		"status":   w.Status,
		"response": w.Response,
	}
	maps.Copy(args, scope.SQLArguments())

	result, err := conn.Exec(ctx, q, args)
	if err != nil {
		return fmt.Errorf("cannot update webhook event: %w", err)
	}

	if result.RowsAffected() == 0 {
		return ErrResourceNotFound
	}

	return nil
}