package api

import (
	"github.com/torkelo/grafana-pro/pkg/bus"
	"github.com/torkelo/grafana-pro/pkg/middleware"
	m "github.com/torkelo/grafana-pro/pkg/models"
	"github.com/torkelo/grafana-pro/pkg/util"
)

func GetAccount(c *middleware.Context) {
	query := m.GetAccountInfoQuery{Id: c.UserAccount.Id}
	err := bus.Dispatch(&query)

	if err != nil {
		c.JsonApiErr(500, "Failed to fetch collaboratos", err)
		return
	}

	c.JSON(200, query.Result)
}

func AddCollaborator(c *middleware.Context) {
	var cmd m.AddCollaboratorCommand

	if !c.JsonBody(&cmd) {
		c.JsonApiErr(400, "Invalid request", nil)
		return
	}

	userQuery := m.GetAccountByLoginQuery{Login: cmd.Email}
	err := bus.Dispatch(&userQuery)
	if err != nil {
		c.JsonApiErr(404, "Collaborator not found", nil)
		return
	}

	accountToAdd := userQuery.Result

	if accountToAdd.Id == c.UserAccount.Id {
		c.JsonApiErr(400, "Cannot add yourself as collaborator", nil)
		return
	}

	cmd.AccountId = accountToAdd.Id
	cmd.ForAccountId = c.UserAccount.Id
	cmd.Role = m.ROLE_READ_WRITE

	err = bus.Dispatch(&cmd)
	if err != nil {
		c.JsonApiErr(500, "Could not add collaborator", err)
		return
	}

	c.JsonOK("Collaborator added")
}

func GetOtherAccounts(c *middleware.Context) {
	query := m.GetOtherAccountsQuery{AccountId: c.UserAccount.Id}
	err := bus.Dispatch(&query)

	if err != nil {
		c.JSON(500, util.DynMap{"message": err.Error()})
		return
	}

	result := append(query.Result, &m.OtherAccountDTO{
		Id:    c.UserAccount.Id,
		Role:  "owner",
		Email: c.UserAccount.Email,
	})

	for _, ac := range result {
		if ac.Id == c.UserAccount.UsingAccountId {
			ac.IsUsing = true
			break
		}
	}

	c.JSON(200, result)
}

func validateUsingAccount(accountId int64, otherId int64) bool {
	if accountId == otherId {
		return true
	}

	query := m.GetOtherAccountsQuery{AccountId: accountId}
	err := bus.Dispatch(&query)
	if err != nil {
		return false
	}

	// validate that the account id in the list
	valid := false
	for _, other := range query.Result {
		if other.Id == otherId {
			valid = true
		}
	}
	return valid
}

func SetUsingAccount(c *middleware.Context) {
	usingAccountId := c.ParamsInt64(":id")

	if !validateUsingAccount(c.UserAccount.Id, usingAccountId) {
		c.JsonApiErr(401, "Not a valid account", nil)
		return
	}

	cmd := m.SetUsingAccountCommand{
		AccountId:      c.UserAccount.Id,
		UsingAccountId: usingAccountId,
	}

	err := bus.Dispatch(&cmd)
	if err != nil {
		c.JsonApiErr(500, "Failed to update account", err)
		return
	}

	c.JsonOK("Active account changed")
}