package jira

import (
    "encoding/json"
    "net/url"
)

const (
    apiName    string = "api"
    apiVersion string = "2"
)

type JiraClient struct {
    AuthUser string
    AuthPass string
    Host     url.URL
}

func NewClient(user, pass string, jiraHost url.URL) *JiraClient {
    return &JiraClient{
        AuthUser: user,
        AuthPass: pass,
    }
}

func (c *JiraClient) Products() ([]JiraProduct, error) {
    args = map[string]string{
        "projectKeys": "BLD",
        "expand", "projects.issuetypes.fields",
    }

    fields, err := c.performRequest("GET", "issue/createmeta", args)
    // do whatever transformation to turn fields into []JiraProduct
}

func (c *JiraClient) performRequest(method string, endpoint string, args map[string]string) jiraFields {
    url := jiraUrl(endpoint)

    q := url.Query()
    for k, v := range args {
        q.Add(k, v)
    }
    url.RawQuery = q.Encode()

    resp := jiraRequest(url, method)

    // Fill the record with the data from the JSON
    var parsedDoc jiraDoc

    // Use json.Decode for reading streams of JSON data
    if err := json.NewDecoder(resp.Body).Decode(&parsedDoc); err != nil {
        return nil, err
    }

    project := parsedDoc.Projects[0]   // Only requested one project, use the first one
    issueType := project.IssueTypes[0] // Should be "Task", but probably doesn't matter
    fields := issueType.Fields
    return fields
}