package xyz.etztech.embed;


import xyz.etztech.Javacord;

import java.time.OffsetDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

public class Embed {
    private String content;

    private String title;
    private String description;
    private String url;
    private int color;
    private OffsetDateTime timestamp;
    private Footer footer;
    private Thumbnail thumbnail;
    private Image image;
    private Author author;
    private List<Field> fields;

    public Embed() {
        this.content = "";
        this.title = "";
        this.description = "";
        this.url = "";
        this.color = 0;
        this.timestamp = null;
        this.footer = null;
        this.thumbnail = null;
        this.image = null;
        this.author = null;
        this.fields = new ArrayList<>();
    }

    public Embed content(String content) {
        this.content = content;
        return this;
    }

    public Embed title(String title) {
        this.title = title;
        return this;
    }

    public Embed description(String description) {
        this.description = description;
        return this;
    }

    public Embed url(String url) {
        this.url = url;
        return this;
    }

    public Embed color(int color) {
        this.color = color;
        return this;
    }

    public Embed timestamp(OffsetDateTime timestamp) {
        this.timestamp = timestamp;
        return this;
    }

    public Embed footer(Footer footer) {
        this.footer = footer;
        return this;
    }

    public Embed thumbnail(Thumbnail thumbnail) {
        this.thumbnail = thumbnail;
        return this;
    }

    public Embed image(Image image) {
        this.image = image;
        return this;
    }

    public Embed author(Author author) {
        this.author = author;
        return this;
    }

    public Embed fields(List<Field> fields) {
        this.fields = fields;
        return this;
    }

    public Embed addField(Field field) {
        this.fields.add(field);
        return this;
    }

    public String toJSON() {
        StringBuilder builder = new StringBuilder("{");
        List<String> json = new ArrayList<>();
        if (!"".equals(title)) json.add(String.format("\"title\": \"%s\"", Javacord.escapeQuote(title)));
        if (!"".equals(description)) json.add(String.format("\"description\": \"%s\"", Javacord.escapeQuote(description)));
        if (!"".equals(url)) json.add(String.format("\"url\": \"%s\"", Javacord.escapeQuote(url)));
        if (color != 0) json.add(String.format("\"color\": \"%d\"", color));
        if (timestamp != null) json.add(String.format("\"timestamp\": \"%s\"", timestamp.format(DateTimeFormatter.ISO_INSTANT)));
        if (footer != null) json.add(String.format("\"footer\": %s", footer.toJSON()));
        if (thumbnail != null) json.add(String.format("\"thumbnail\": %s", thumbnail.toJSON()));
        if (image != null) json.add(String.format("\"image\": %s", image.toJSON()));
        if (author != null) json.add(String.format("\"author\": %s", author.toJSON()));
        if (fields.size() > 0) json.add(String.format("\"fields\": [%s]", fields.stream().map(Field::toJSON).collect(Collectors.joining(","))));
        builder.append(String.join(",", json));
        return builder.append("}").toString();
    }

    public String toString() {
        StringBuilder builder = new StringBuilder("{");
        List<String> json = new ArrayList<>();
        if (!"".equals(content)) json.add(String.format("\"content\": \"%s\"", Javacord.escapeQuote(content)));
        if (!"{}".equals(toJSON())) json.add(String.format("\"embed\": %s", toJSON()));
        builder.append(String.join(",", json));
        return builder.append("}").toString();
    }
}