package models

import "time"

type Item struct {
	ID                   int    `json:"id"`
	ScopeID              int    `json:"scopeId"`
	OwnerID              string `json:"ownerId"`
	ProjectID            *int   `json:"projectId,omitempty"`
	ProjectRequirementID *int   `json:"projectRequirementId,omitempty"`

	Name          string     `json:"name"`
	Description   string     `json:"description"`
	CreatedTime   time.Time  `json:"createdTime"`
	AcquiredTime  *time.Time `json:"acquiredTime"`
	ScheduledDate *Date      `json:"scheduledDate"`

	Stats []StatProgressEntry `json:"stats,omitempty"`
}

func (item *Item) ApplyUpdate(update ItemUpdate) {
	if update.ProjectRequirementID != nil {
		item.ProjectRequirementID = update.ProjectRequirementID
	}
	if update.OwnerID != nil {
		item.OwnerID = *update.OwnerID
	}
	if update.Name != nil {
		item.Name = *update.Name
	}
	if update.Description != nil {
		item.Description = *update.Description
	}
	if update.AcquiredTime != nil {
		item.AcquiredTime = update.AcquiredTime
	}
	if update.ScheduledDate != nil {
		item.ScheduledDate = update.ScheduledDate
	}
	if update.ClearScheduledDate {
		item.ScheduledDate = nil
	}
	if update.ClearProjectRequirementID {
		item.ProjectRequirementID = nil
	}
	if update.ClearAcquiredTime {
		item.AcquiredTime = nil
	}

	deleteList := make([]int, 0, len(update.Stats))
	for i, stat := range update.Stats {
		if stat.Acquired == 0 && stat.Required == 0 {
			deleteList = append(deleteList, i-len(deleteList))
		}

		found := false
		for j := range item.Stats {
			if item.Stats[j].ID == stat.ID {
				item.Stats[j].Required = stat.Required
				item.Stats[j].Acquired = stat.Acquired

				found = true
				break
			}
		}
		if !found {
			item.Stats = append(item.Stats, stat)
		}
	}
}

type ItemUpdate struct {
	ProjectRequirementID *int       `json:"projectRequirementId"`
	OwnerID              *string    `json:"ownerId"`
	Name                 *string    `json:"name"`
	Description          *string    `json:"description"`
	AcquiredTime         *time.Time `json:"acquiredTime"`
	ScheduledDate        *Date      `json:"scheduledDate"`

	Stats []StatProgressEntry `json:"stats"`

	ClearProjectRequirementID bool `json:"clearProjectRequirementId"`
	ClearAcquiredTime         bool `json:"clearAcquiredTime"`
	ClearScheduledDate        bool `json:"clearScheduledDate"`
}