package contract

import (
	"time"

	"github.com/google/uuid"
)

type CreateCashAdvanceRequest struct {
	// OutletID falls back to the caller's outlet when omitted; an advance is cash out
	// of one drawer, so one of the two has to be known.
	OutletID       *uuid.UUID `json:"outlet_id,omitempty" validate:"omitempty"`
	CodeNumber     string     `json:"code_number" validate:"required,min=1,max=50"`
	TeamScope      string     `json:"team_scope" validate:"required,oneof=category central"`
	TeamCategoryID *uuid.UUID `json:"team_category_id,omitempty" validate:"omitempty"`
	Amount         float64    `json:"amount" validate:"required,gt=0"`
	IssuedDate     string     `json:"issued_date" validate:"required"`         // Format: YYYY-MM-DD
	DueDate        *string    `json:"due_date,omitempty" validate:"omitempty"` // Format: YYYY-MM-DD
	Status         *string    `json:"status,omitempty" validate:"omitempty,oneof=draft approved rejected cancelled"`
	Description    *string    `json:"description,omitempty" validate:"omitempty"`
}

type UpdateCashAdvanceRequest struct {
	CodeNumber *string `json:"code_number,omitempty" validate:"omitempty,min=1,max=50"`
	// An advance always belongs to a team, so team_scope can be moved but not cleared.
	TeamScope      *string    `json:"team_scope,omitempty" validate:"omitempty,oneof=category central"`
	TeamCategoryID *uuid.UUID `json:"team_category_id,omitempty" validate:"omitempty"`
	Amount         *float64   `json:"amount,omitempty" validate:"omitempty,gt=0"`
	ReturnedAmount *float64   `json:"returned_amount,omitempty" validate:"omitempty,gte=0"`
	IssuedDate     *string    `json:"issued_date,omitempty" validate:"omitempty"`
	DueDate        *string    `json:"due_date,omitempty" validate:"omitempty"`
	Status         *string    `json:"status,omitempty" validate:"omitempty,oneof=draft approved rejected cancelled"`
	Description    *string    `json:"description,omitempty" validate:"omitempty"`
}

type CashAdvanceResponse struct {
	ID               uuid.UUID                       `json:"id"`
	OrganizationID   uuid.UUID                       `json:"organization_id"`
	OutletID         uuid.UUID                       `json:"outlet_id"`
	CodeNumber       string                          `json:"code_number"`
	TeamScope        string                          `json:"team_scope"`
	TeamCategoryID   *uuid.UUID                      `json:"team_category_id"`
	Amount           float64                         `json:"amount"`
	SettledAmount    float64                         `json:"settled_amount"`
	ReturnedAmount   float64                         `json:"returned_amount"`
	RemainingAmount  float64                         `json:"remaining_amount"`
	SettlementStatus string                          `json:"settlement_status"`
	IssuedDate       time.Time                       `json:"issued_date"`
	DueDate          *time.Time                      `json:"due_date"`
	Status           string                          `json:"status"`
	Description      *string                         `json:"description"`
	CreatedAt        time.Time                       `json:"created_at"`
	UpdatedAt        time.Time                       `json:"updated_at"`
	Team             *PurchaseTeamResponse           `json:"team,omitempty"`
	Settlements      []CashAdvanceSettlementResponse `json:"settlements,omitempty"`
}

// CashAdvanceSettlementResponse is one purchase order or expense paid out of the
// advance.
type CashAdvanceSettlementResponse struct {
	Type   string    `json:"type"`
	ID     uuid.UUID `json:"id"`
	Number string    `json:"number"`
	Date   time.Time `json:"date"`
	Amount float64   `json:"amount"`
	Status string    `json:"status"`
}

type ListCashAdvancesRequest struct {
	Page   int    `json:"page" validate:"min=1"`
	Limit  int    `json:"limit" validate:"min=1,max=100"`
	Search string `json:"search,omitempty"`
	Status string `json:"status,omitempty" validate:"omitempty,oneof=draft approved rejected cancelled"`
	// SettlementStatus filters on how much of the cash has been accounted for,
	// which is derived from the spending charged to the advance rather than stored.
	SettlementStatus string `json:"settlement_status,omitempty" validate:"omitempty,oneof=open partial settled"`
	// Team is the single-value form of the two filters below, so the team picker can
	// send back what it was given: a parent category id or "central" for Pusat.
	Team           string     `json:"team,omitempty"`
	TeamScope      string     `json:"team_scope,omitempty" validate:"omitempty,oneof=category central"`
	TeamCategoryID *uuid.UUID `json:"team_category_id,omitempty"`
	StartDate      *time.Time `json:"start_date,omitempty"`
	EndDate        *time.Time `json:"end_date,omitempty"`
}

type ListCashAdvancesResponse struct {
	CashAdvances []CashAdvanceResponse `json:"cash_advances"`
	TotalCount   int                   `json:"total_count"`
	Page         int                   `json:"page"`
	Limit        int                   `json:"limit"`
	TotalPages   int                   `json:"total_pages"`
}