#!/usr/bin/env python
# coding=utf-8
from __future__ import unicode_literals

import os
import sys
from pyecharts import Graph


PY2 = sys.version_info[0] == 2


def test_graph():

    # graph_0
    nodes = [{"name": "结点1", "symbolSize": 10},
             {"name": "结点2", "symbolSize": 20},
             {"name": "结点3", "symbolSize": 30},
             {"name": "结点4", "symbolSize": 40},
             {"name": "结点5", "symbolSize": 50},
             {"name": "结点6", "symbolSize": 40},
             {"name": "结点7", "symbolSize": 30},
             {"name": "结点8", "symbolSize": 20}]
    links = []
    for i in nodes:
        for j in nodes:
            links.append({"source": i.get('name'), "target": j.get('name')})
    graph = Graph("关系图-力引导布局示例")
    graph.add("", nodes, links, repulsion=8000)
    graph.show_config()
    graph.render()

    # graph_1
    graph = Graph("关系图-环形布局示例")
    graph.add("", nodes, links, is_label_show=True,
              graph_repulsion=8000, graph_layout='circular', label_text_color=None)
    graph.render()

    # graph_2
    import json
    if PY2:
        import codecs
        with codecs.open(os.path.join("..", "json", "weibo.json"), "rb") as f:
            j = json.load(f)
    else:
        with open(os.path.join("..", "json", "weibo.json"), "r", encoding="utf-8") as f:
            j = json.load(f)
    nodes, links, categories, cont, mid, userl = j
    graph = Graph("微博转发关系图", width=1200, height=600)
    graph.add("", nodes, links, categories, label_pos="right", graph_repulsion=50,
              is_legend_show=False, line_curve=0.2, label_text_color=None)
    graph.render()