package models

import "time"

type ProjectEntry struct {
	ID          int       `json:"id"`
	OwnerID     string    `json:"ownerId,omitempty"`
	CreatedTime time.Time `json:"createdTime"`
	Name        string    `json:"name"`
	Status      Status    `json:"status"`
}

type ProjectRequirement struct {
	ID          int                 `json:"id"`
	Name        string              `json:"name"`
	Description string              `json:"description"`
	Status      Status              `json:"status"`
	Stats       []StatProgressEntry `json:"stats,omitempty"`
	Items       []Item              `json:"items,omitempty"`
}

func (requirement *ProjectRequirement) Update(update ProjectRequirementUpdate) {
	if update.Name != nil {
		requirement.Name = *update.Name
	}
	if update.Description != nil {
		requirement.Description = *update.Description
	}
	if update.Status != nil {
		requirement.Status = *update.Status
	}

	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 requirement.Stats {
			if requirement.Stats[j].ID == stat.ID {
				requirement.Stats[j].Required = stat.Required
				requirement.Stats[j].Acquired = stat.Acquired

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

type ProjectRequirementUpdate struct {
	Name        *string             `json:"name"`
	Description *string             `json:"description"`
	Status      *Status             `json:"status"`
	Stats       []StatProgressEntry `json:"stats"`
}

type Project struct {
	ProjectEntry
	Description  string               `json:"description"`
	Requirements []ProjectRequirement `json:"requirements"`
}

func (project *Project) Update(update ProjectUpdate) {
	if update.OwnerID != nil {
		project.OwnerID = *update.OwnerID
	}
	if update.Name != nil {
		project.Name = *update.Name
	}
	if update.Description != nil {
		project.Description = *update.Description
	}
	if update.Status != nil {
		project.Status = *update.Status
	}
}

func (project *Project) Requirement(id int) *ProjectRequirement {
	for i, requirement := range project.Requirements {
		if requirement.ID == id {
			return &project.Requirements[i]
		}
	}

	return nil
}

type ProjectUpdate struct {
	Name        *string `json:"name,omitempty"`
	OwnerID     *string `json:"ownerId,omitempty"`
	Status      *Status `json:"status,omitempty"`
	Description *string `json:"description,omitempty"`
}