package gitea

import (
	"context"
	"encoding/json"
	"fmt"
)

type Issue struct {
	Number  int    `json:"number"`
	Title   string `json:"title"`
	Body    string `json:"body"`
	HTMLURL string `json:"html_url"`
	State   string `json:"state"`
}

type CreateIssueArgs struct {
	Title     string   `json:"title"`
	Body      string   `json:"body"`
	Labels    []int64  `json:"labels,omitempty"`
	Assignees []string `json:"assignees,omitempty"`
	Milestone int64    `json:"milestone,omitempty"`
}

func (c *Client) CreateIssue(ctx context.Context, owner, repo string, args CreateIssueArgs) (*Issue, error) {
	p := fmt.Sprintf("/api/v1/repos/%s/%s/issues", owner, repo)
	payload, err := json.Marshal(args)
	if err != nil {
		return nil, err
	}
	body, status, err := c.PostJSON(ctx, p, payload)
	if err != nil {
		return nil, err
	}
	if err := MapStatus(status, body); err != nil {
		return nil, err
	}
	var iss Issue
	if err := json.Unmarshal(body, &iss); err != nil {
		return nil, err
	}
	return &iss, nil
}

type IssueComment struct {
	ID      int64  `json:"id"`
	Body    string `json:"body"`
	HTMLURL string `json:"html_url"`
}

// CreateIssueComment posts to /issues/{index}/comments. Per Gitea, this same endpoint
// works for both issues and pull requests (PRs share index space with issues).
func (c *Client) CreateIssueComment(ctx context.Context, owner, repo string, index int, body string) (*IssueComment, error) {
	p := fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/comments", owner, repo, index)
	payload, err := json.Marshal(map[string]string{"body": body})
	if err != nil {
		return nil, err
	}
	respBody, status, err := c.PostJSON(ctx, p, payload)
	if err != nil {
		return nil, err
	}
	if err := MapStatus(status, respBody); err != nil {
		return nil, err
	}
	var c2 IssueComment
	if err := json.Unmarshal(respBody, &c2); err != nil {
		return nil, err
	}
	return &c2, nil
}