use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::path::PathBuf;

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Config {
    pub source_hosts: HashMap<String, SourceHostConfig>,

    pub sources: HashMap<String, SourceConfig>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SourceHostConfig {
    #[serde(rename = "type")]
    pub _type: SourceHostType,
    pub host: Option<String>,
    pub token_file: Option<PathBuf>,
    pub token: Option<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "kebab-case")]
pub enum SourceHostType {
    Github,
    Gitlab,
    Gitea,
    Forgejo,
    Git,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(tag = "type")]
#[serde(rename_all = "kebab-case")]
pub enum SourceConfig {
    User {
        /// Which source host to use (as defined in source_hosts)
        /// You can also specify either of the following built-in source hosts:
        ///
        ///   - "github" for GitHub at github.com
        ///   - "gitlab" for GitLab at gitlab.com
        ///   - "gitea" for Gitea at gitea.com
        ///   - "codeberg" for Forgejo at codeberg.org
        source_host: String,

        /// The user name
        name: String,

        /// Filters applied when selecting repositories
        #[serde(default)]
        repository_filters: RepositoryFilterConfig,

        /// Whether to clone the selected repositories
        #[serde(default)]
        clone: bool,
        /// Filters applied when cloning repositories
        #[serde(default)]
        clone_filters: CloneFilterConfig,

        /// Whether to export issues for the selected repositories
        #[serde(default)]
        export_issues: bool,
        /// Filters applied when exporting issues
        #[serde(default)]
        issue_filters: IssueFilterConfig,
    },
    Organization {
        /// Which source host to use (as defined in source_hosts)
        /// You can also specify either of the following built-in source hosts:
        ///
        ///   - "github" for GitHub at github.com
        ///   - "gitlab" for GitLab at gitlab.com
        ///   - "gitea" for Gitea at gitea.com
        ///   - "codeberg" for Forgejo at codeberg.org
        source_host: String,

        /// The organization name
        name: String,

        /// Whether to recurse into the organization's groups/subgroups (if supported)
        #[serde(default)]
        recurse_groups: bool,

        /// Filters applied when selecting repositories
        #[serde(default)]
        repository_filters: RepositoryFilterConfig,

        /// Whether to clone the selected repositories
        #[serde(default)]
        clone: bool,
        /// Filters applied when cloning repositories
        #[serde(default)]
        clone_filters: CloneFilterConfig,

        /// Whether to export issues for the selected repositories
        #[serde(default)]
        export_issues: bool,
        /// Filters applied when exporting issues
        #[serde(default)]
        issue_filters: IssueFilterConfig,
    },
    UserStars {
        /// Which source host to use (as defined in source_hosts)
        /// You can also specify either of the following built-in source hosts:
        ///
        ///   - "github" for GitHub at github.com
        ///   - "gitlab" for GitLab at gitlab.com
        ///   - "gitea" for Gitea at gitea.com
        ///   - "codeberg" for Forgejo at codeberg.org
        source_host: String,

        /// The username whose stars to fetch
        name: String,

        /// Filters applied when selecting repositories
        #[serde(default)]
        repository_filters: RepositoryFilterConfig,

        /// Whether to clone the selected repositories
        #[serde(default)]
        clone: bool,
        /// Filters applied when cloning repositories
        #[serde(default)]
        clone_filters: CloneFilterConfig,

        /// Whether to export issues for the selected repositories
        #[serde(default)]
        export_issues: bool,
        /// Filters applied when exporting issues
        #[serde(default)]
        issue_filters: IssueFilterConfig,
    },
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RepositoryFilterConfig {
    pub filter_regex: Vec<RegexFilter>,
    pub include_forks: bool,
    pub include_archived: bool,
    pub min_stars: Option<u32>,
    pub max_stars: Option<u32>,
    pub include_public: bool,
    pub include_internal: bool,
    pub include_private: bool,
}

impl Default for RepositoryFilterConfig {
    fn default() -> Self {
        Self {
            filter_regex: Vec::new(),
            include_forks: true,
            include_archived: true,
            min_stars: None,
            max_stars: None,
            include_public: true,
            include_internal: true,
            include_private: true,
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum RegexFilter {
    Include(String),
    Exclude(String),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct IssueFilterConfig {
    //   - Filter by label(s)
    //   - Filter by assignee(s)
    //   - Filter by milestone(s)
    //   - Filter by state (open, closed, all)
}

impl Default for IssueFilterConfig {
    fn default() -> Self {
        Self {
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CloneFilterConfig {
    //   - Use native API if available
    //   - Which branches to get
    //   - Which tags to get
    //   - Get LFS objects
    //   - Get Releases
    //   - Get Pull Requests
}

impl Default for CloneFilterConfig {
    fn default() -> Self {
        Self {
        }
    }
}