package ru.ulstu.project.model;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import org.hibernate.validator.constraints.NotEmpty;
import org.thymeleaf.util.StringUtils;
import ru.ulstu.deadline.model.Deadline;
import ru.ulstu.file.model.FileDataDto;
import ru.ulstu.grant.model.GrantDto;
import ru.ulstu.name.NameContainer;
import ru.ulstu.user.model.User;
import ru.ulstu.user.model.UserDto;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

import static ru.ulstu.core.util.StreamApiUtils.convert;

public class ProjectDto extends NameContainer {
    private Integer id;

    @NotEmpty
    private String title;
    private Project.ProjectStatus status;
    private String description;
    private List<Deadline> deadlines = new ArrayList<>();
    private GrantDto grant;
    private String repository;
    private List<FileDataDto> files = new ArrayList<>();
    private List<Integer> removedDeadlineIds = new ArrayList<>();
    private Set<Integer> executorIds;
    private List<UserDto> executors;
    private List<Integer> grantIds;
    private List<GrantDto> grants;

    private final static int MAX_EXECUTORS_LENGTH = 40;

    public ProjectDto() {
    }

    public ProjectDto(String title) {
        this.title = title;
    }

    @JsonCreator
    public ProjectDto(@JsonProperty("id") Integer id,
                      @JsonProperty("title") String title,
                      @JsonProperty("status") Project.ProjectStatus status,
                      @JsonProperty("description") String description,
                      @JsonProperty("grant") GrantDto grant,
                      @JsonProperty("repository") String repository,
                      @JsonProperty("files") List<FileDataDto> files,
                      @JsonProperty("deadlines") List<Deadline> deadlines,
                      @JsonProperty("executorIds") Set<Integer> executorIds,
                      @JsonProperty("executors") List<UserDto> executors,
                      @JsonProperty("grantIds") List<Integer> grantIds,
                      @JsonProperty("grants") List<GrantDto> grants) {
        this.id = id;
        this.title = title;
        this.status = status;
        this.description = description;
        this.grant = grant;
        this.repository = repository;
        this.deadlines = deadlines;
        this.files = files;
        this.executorIds = executorIds;
        this.executors = executors;
        this.grantIds = grantIds;
        this.grants = grants;
    }


    public ProjectDto(Project project) {
        Set<User> users = new HashSet<User>(project.getExecutors());
        this.id = project.getId();
        this.title = project.getTitle();
        this.status = project.getStatus();
        this.description = project.getDescription();
        this.files = convert(project.getFiles(), FileDataDto::new);
        this.grant = project.getGrant() == null ? null : new GrantDto(project.getGrant());
        this.repository = project.getRepository();
        this.deadlines = project.getDeadlines();
        this.executorIds = convert(users, user -> user.getId());
        this.executors = convert(project.getExecutors(), UserDto::new);
        this.grantIds = convert(project.getGrants(), grant -> grant.getId());
        this.grants = convert(project.getGrants(), GrantDto::new);
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public Project.ProjectStatus getStatus() {
        return status;
    }

    public void setStatus(Project.ProjectStatus status) {
        this.status = status;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public GrantDto getGrant() {
        return grant;
    }

    public void setGrant(GrantDto grant) {
        this.grant = grant;
    }

    public String getRepository() {
        return repository;
    }

    public void setRepository(String repository) {
        this.repository = repository;
    }

    public List<Deadline> getDeadlines() {
        return deadlines;
    }

    public void setDeadlines(List<Deadline> deadlines) {
        this.deadlines = deadlines;
    }

    public List<FileDataDto> getFiles() {
        return files;
    }

    public void setFiles(List<FileDataDto> files) {
        this.files = files;
    }

    public List<Integer> getRemovedDeadlineIds() {
        return removedDeadlineIds;
    }

    public void setRemovedDeadlineIds(List<Integer> removedDeadlineIds) {
        this.removedDeadlineIds = removedDeadlineIds;
    }

    public Set<Integer> getExecutorIds() {
        return executorIds;
    }

    public void setExecutorIds(Set<Integer> executorIds) {
        this.executorIds = executorIds;
    }

    public List<UserDto> getExecutors() {
        return executors;
    }

    public void setExecutors(List<UserDto> executors) {
        this.executors = executors;
    }

    public String getExecutorsString() {
        return StringUtils.abbreviate(executors
                .stream()
                .map(executor -> executor.getLastName())
                .collect(Collectors.joining(", ")), MAX_EXECUTORS_LENGTH);
    }

    public List<Integer> getGrantIds() {
        return grantIds;
    }

    public void setGrantIds(List<Integer> grantIds) {
        this.grantIds = grantIds;
    }

    public List<GrantDto> getGrants() {
        return grants;
    }

    public void setGrants(List<GrantDto> grants) {
        this.grants = grants;
    }
}