package gitea

import (
	"context"
	"net/url"
)

// Commit status states (Gitea's closed set).
const (
	StatusPending = "pending"
	StatusSuccess = "success"
	StatusError   = "error"
	StatusFailure = "failure"
)

// CommitStatusParams is the status-create write shape.
type CommitStatusParams struct {
	State       string // one of the Status* constants
	Context     string // e.g. "ci/lint"; server defaults to "default"
	Description string
	TargetURL   string `json:"target_url"`
}

// CommitStatus is the status projection (read shape).
type CommitStatus struct {
	ID          int64  `json:"id"`
	State       string `json:"state"`
	Context     string `json:"context"`
	Description string `json:"description"`
	TargetURL   string `json:"target_url"`
	CreatedAt   string `json:"created_at"`
	UpdatedAt   string `json:"updated_at"`
}

// CombinedStatus is the worst-of rollup Gitea reports per ref.
type CombinedStatus struct {
	State      string         `json:"state"`
	SHA        string         `json:"sha"`
	TotalCount int            `json:"total_count"`
	Statuses   []CommitStatus `json:"statuses"`
}

// CreateCommitStatus reports one status on a commit (sha may be any ref
// the server resolves: full or short sha, branch, tag).
func (c *Client) CreateCommitStatus(ctx context.Context, owner, repo, sha string, p CommitStatusParams) (*CommitStatus, error) {
	var out CommitStatus
	path := "/repos/" + url.PathEscape(owner) + "/" + url.PathEscape(repo) + "/statuses/" + url.PathEscape(sha)
	if err := c.do(ctx, "POST", path, nil, p, &out); err != nil {
		return nil, err
	}
	return &out, nil
}

// ListCommitStatuses lists the latest status per context for a ref.
func (c *Client) ListCommitStatuses(ctx context.Context, owner, repo, ref string) ([]CommitStatus, error) {
	var out []CommitStatus
	path := "/repos/" + url.PathEscape(owner) + "/" + url.PathEscape(repo) + "/commits/" + url.PathEscape(ref) + "/statuses"
	if err := c.do(ctx, "GET", path, nil, nil, &out); err != nil {
		return nil, err
	}
	return out, nil
}

// GetCombinedStatus fetches the worst-of rollup for a ref. Gitea answers
// 404 when the ref has no statuses at all.
func (c *Client) GetCombinedStatus(ctx context.Context, owner, repo, ref string) (*CombinedStatus, error) {
	var out CombinedStatus
	path := "/repos/" + url.PathEscape(owner) + "/" + url.PathEscape(repo) + "/commits/" + url.PathEscape(ref) + "/status"
	if err := c.do(ctx, "GET", path, nil, nil, &out); err != nil {
		return nil, err
	}
	return &out, nil
}