# ui/prompts.py - 交互式输入 / 选择工具函数

from typing import List, Optional

from rich.console import Console
from rich.prompt import Confirm, Prompt

import config
from database.db_manager import DBManager
from database.models import FunctionalRequirement, Project
from ui.display import print_projects_table
from utils.file_handler import merge_knowledge_files

console = Console()
db      = DBManager()


def select_project(prompt_text: str = "请选择项目 ID") -> Optional[Project]:
    """展示项目列表，交互选择并返回 Project 对象；输入 0 返回 None。"""
    projects = db.list_projects()
    if not projects:
        console.print("[yellow]当前暂无项目，请先新建项目。[/yellow]")
        return None
    print_projects_table(projects)
    pid_str = Prompt.ask(f"{prompt_text}（输入 0 返回）", default="0")
    if pid_str == "0":
        return None
    try:
        pid = int(pid_str)
    except ValueError:
        console.print("[red]ID 必须为整数[/red]")
        return None
    project = db.get_project(pid)
    if not project:
        console.print(f"[red]项目 ID={pid} 不存在[/red]")
        return None
    return project


def load_knowledge_optional() -> str:
    """询问是否加载知识库文件，加载后返回合并文本；否则返回空字符串。"""
    if Confirm.ask("是否加载知识库文件？", default=False):
        kb_path = Prompt.ask("知识库文件路径（多个用逗号分隔）")
        paths   = [p.strip() for p in kb_path.split(",") if p.strip()]
        text    = merge_knowledge_files(paths)
        console.print(f"[dim]已加载 {len(paths)} 个知识库文件[/dim]")
        return text
    return ""


def input_multiline(prompt_hint: str = "请输入内容") -> str:
    """多行文本输入，输入空行结束，返回合并字符串。"""
    console.print(f"[dim]{prompt_hint}（输入空行结束）:[/dim]")
    lines: List[str] = []
    while True:
        line = input()
        if line == "":
            break
        lines.append(line)
    return "\n".join(lines).strip()


def pause() -> None:
    """暂停，等待用户按 Enter 键返回主菜单。"""
    console.print()
    input("  按 Enter 键返回主菜单...")


def interactive_edit_req(
    reqs: List[FunctionalRequirement],
) -> List[FunctionalRequirement]:
    """交互式编辑指定序号的需求字段。"""
    idx_str = Prompt.ask("输入要编辑的序号")
    try:
        idx = int(idx_str)
    except ValueError:
        console.print("[red]序号必须为整数[/red]")
        return reqs
    for req in reqs:
        if req.index_no == idx:
            req.title         = Prompt.ask("新标题",   default=req.title)
            req.description   = Prompt.ask("新描述",   default=req.description)
            req.function_name = Prompt.ask("新函数名", default=req.function_name)
            req.priority      = Prompt.ask(
                "新优先级", default=req.priority,
                choices=["high", "medium", "low"],
            )
            req.module = Prompt.ask("新模块", default=req.module)
            console.print(f"[green]✓ 序号 {idx} 已更新[/green]")
            return reqs
    console.print(f"[red]序号 {idx} 不存在[/red]")
    return reqs


def interactive_delete_req(
    reqs: List[FunctionalRequirement],
) -> List[FunctionalRequirement]:
    """交互式删除指定序号的需求（内存操作，未持久化）。"""
    idx_str = Prompt.ask("输入要删除的序号")
    try:
        idx = int(idx_str)
    except ValueError:
        console.print("[red]序号必须为整数[/red]")
        return reqs
    new_reqs = [r for r in reqs if r.index_no != idx]
    if len(new_reqs) < len(reqs):
        console.print(f"[green]✓ 序号 {idx} 已删除[/green]")
    else:
        console.print(f"[red]序号 {idx} 不存在[/red]")
    return new_reqs


def interactive_add_req(
    reqs:       List[FunctionalRequirement],
    project:    Project,
    raw_req_id: int,
) -> List[FunctionalRequirement]:
    """交互式新增一条需求到列表（内存操作，未持久化）。"""
    next_idx      = max((r.index_no for r in reqs), default=0) + 1
    title         = Prompt.ask("新需求标题")
    description   = Prompt.ask("新需求描述")
    function_name = Prompt.ask("函数名（snake_case）")
    priority      = Prompt.ask(
        "优先级", choices=["high", "medium", "low"], default="medium",
    )
    module  = Prompt.ask("所属模块", default=config.DEFAULT_MODULE)
    new_req = FunctionalRequirement(
        project_id    = project.id,
        raw_req_id    = raw_req_id,
        index_no      = next_idx,
        title         = title,
        description   = description,
        function_name = function_name,
        priority      = priority,
        module        = module,
        status        = "pending",
        is_custom     = True,
    )
    reqs.append(new_req)
    console.print(f"[green]✓ 已添加新需求: {title}（序号 {next_idx}）[/green]")
    return reqs


def interactive_adjust_modules(
    reqs: List[FunctionalRequirement],
) -> List[FunctionalRequirement]:
    """交互式逐条调整需求的模块归属，并立即持久化。"""
    while True:
        idx_str = Prompt.ask("输入要调整的需求序号（输入 0 结束）", default="0")
        if idx_str == "0":
            break
        for req in reqs:
            if str(req.index_no) == idx_str:
                new_module = Prompt.ask(
                    f"'{req.function_name}' 新模块名", default=req.module,
                )
                req.module = new_module
                db.update_functional_requirement(req)
                console.print(
                    f"[green]✓ 已更新模块: {req.function_name} → {new_module}[/green]"
                )
                break
        else:
            console.print(f"[red]序号 {idx_str} 不存在[/red]")
    return reqs# ui/prompts.py - 交互式输入 / 选择工具函数

from typing import List, Optional

from rich.console import Console
from rich.prompt import Confirm, Prompt

import config
from database.db_manager import DBManager
from database.models import FunctionalRequirement, Project
from ui.display import print_projects_table
from utils.file_handler import merge_knowledge_files

console = Console()
db      = DBManager()


def select_project(prompt_text: str = "请选择项目 ID") -> Optional[Project]:
    """展示项目列表，交互选择并返回 Project 对象；输入 0 返回 None。"""
    projects = db.list_projects()
    if not projects:
        console.print("[yellow]当前暂无项目，请先新建项目。[/yellow]")
        return None
    print_projects_table(projects)
    pid_str = Prompt.ask(f"{prompt_text}（输入 0 返回）", default="0")
    if pid_str == "0":
        return None
    try:
        pid = int(pid_str)
    except ValueError:
        console.print("[red]ID 必须为整数[/red]")
        return None
    project = db.get_project(pid)
    if not project:
        console.print(f"[red]项目 ID={pid} 不存在[/red]")
        return None
    return project


def load_knowledge_optional() -> str:
    """询问是否加载知识库文件，加载后返回合并文本；否则返回空字符串。"""
    if Confirm.ask("是否加载知识库文件？", default=False):
        kb_path = Prompt.ask("知识库文件路径（多个用逗号分隔）")
        paths   = [p.strip() for p in kb_path.split(",") if p.strip()]
        text    = merge_knowledge_files(paths)
        console.print(f"[dim]已加载 {len(paths)} 个知识库文件[/dim]")
        return text
    return ""


def input_multiline(prompt_hint: str = "请输入内容") -> str:
    """多行文本输入，输入空行结束，返回合并字符串。"""
    console.print(f"[dim]{prompt_hint}（输入空行结束）:[/dim]")
    lines: List[str] = []
    while True:
        line = input()
        if line == "":
            break
        lines.append(line)
    return "\n".join(lines).strip()


def pause() -> None:
    """暂停，等待用户按 Enter 键返回主菜单。"""
    console.print()
    input("  按 Enter 键返回主菜单...")


def interactive_edit_req(
    reqs: List[FunctionalRequirement],
) -> List[FunctionalRequirement]:
    """交互式编辑指定序号的需求字段。"""
    idx_str = Prompt.ask("输入要编辑的序号")
    try:
        idx = int(idx_str)
    except ValueError:
        console.print("[red]序号必须为整数[/red]")
        return reqs
    for req in reqs:
        if req.index_no == idx:
            req.title         = Prompt.ask("新标题",   default=req.title)
            req.description   = Prompt.ask("新描述",   default=req.description)
            req.function_name = Prompt.ask("新函数名", default=req.function_name)
            req.priority      = Prompt.ask(
                "新优先级", default=req.priority,
                choices=["high", "medium", "low"],
            )
            req.module = Prompt.ask("新模块", default=req.module)
            console.print(f"[green]✓ 序号 {idx} 已更新[/green]")
            return reqs
    console.print(f"[red]序号 {idx} 不存在[/red]")
    return reqs


def interactive_delete_req(
    reqs: List[FunctionalRequirement],
) -> List[FunctionalRequirement]:
    """交互式删除指定序号的需求（内存操作，未持久化）。"""
    idx_str = Prompt.ask("输入要删除的序号")
    try:
        idx = int(idx_str)
    except ValueError:
        console.print("[red]序号必须为整数[/red]")
        return reqs
    new_reqs = [r for r in reqs if r.index_no != idx]
    if len(new_reqs) < len(reqs):
        console.print(f"[green]✓ 序号 {idx} 已删除[/green]")
    else:
        console.print(f"[red]序号 {idx} 不存在[/red]")
    return new_reqs


def interactive_add_req(
    reqs:       List[FunctionalRequirement],
    project:    Project,
    raw_req_id: int,
) -> List[FunctionalRequirement]:
    """交互式新增一条需求到列表（内存操作，未持久化）。"""
    next_idx      = max((r.index_no for r in reqs), default=0) + 1
    title         = Prompt.ask("新需求标题")
    description   = Prompt.ask("新需求描述")
    function_name = Prompt.ask("函数名（snake_case）")
    priority      = Prompt.ask(
        "优先级", choices=["high", "medium", "low"], default="medium",
    )
    module  = Prompt.ask("所属模块", default=config.DEFAULT_MODULE)
    new_req = FunctionalRequirement(
        project_id    = project.id,
        raw_req_id    = raw_req_id,
        index_no      = next_idx,
        title         = title,
        description   = description,
        function_name = function_name,
        priority      = priority,
        module        = module,
        status        = "pending",
        is_custom     = True,
    )
    reqs.append(new_req)
    console.print(f"[green]✓ 已添加新需求: {title}（序号 {next_idx}）[/green]")
    return reqs


def interactive_adjust_modules(
    reqs: List[FunctionalRequirement],
) -> List[FunctionalRequirement]:
    """交互式逐条调整需求的模块归属，并立即持久化。"""
    while True:
        idx_str = Prompt.ask("输入要调整的需求序号（输入 0 结束）", default="0")
        if idx_str == "0":
            break
        for req in reqs:
            if str(req.index_no) == idx_str:
                new_module = Prompt.ask(
                    f"'{req.function_name}' 新模块名", default=req.module,
                )
                req.module = new_module
                db.update_functional_requirement(req)
                console.print(
                    f"[green]✓ 已更新模块: {req.function_name} → {new_module}[/green]"
                )
                break
        else:
            console.print(f"[red]序号 {idx_str} 不存在[/red]")
    return reqs# ui/prompts.py - 交互式输入 / 选择工具函数

from typing import List, Optional

from rich.console import Console
from rich.prompt import Confirm, Prompt

import config
from database.db_manager import DBManager
from database.models import FunctionalRequirement, Project
from ui.display import print_projects_table
from utils.file_handler import merge_knowledge_files

console = Console()
db      = DBManager()


def select_project(prompt_text: str = "请选择项目 ID") -> Optional[Project]:
    """展示项目列表，交互选择并返回 Project 对象；输入 0 返回 None。"""
    projects = db.list_projects()
    if not projects:
        console.print("[yellow]当前暂无项目，请先新建项目。[/yellow]")
        return None
    print_projects_table(projects)
    pid_str = Prompt.ask(f"{prompt_text}（输入 0 返回）", default="0")
    if pid_str == "0":
        return None
    try:
        pid = int(pid_str)
    except ValueError:
        console.print("[red]ID 必须为整数[/red]")
        return None
    project = db.get_project(pid)
    if not project:
        console.print(f"[red]项目 ID={pid} 不存在[/red]")
        return None
    return project


def load_knowledge_optional() -> str:
    """询问是否加载知识库文件，加载后返回合并文本；否则返回空字符串。"""
    if Confirm.ask("是否加载知识库文件？", default=False):
        kb_path = Prompt.ask("知识库文件路径（多个用逗号分隔）")
        paths   = [p.strip() for p in kb_path.split(",") if p.strip()]
        text    = merge_knowledge_files(paths)
        console.print(f"[dim]已加载 {len(paths)} 个知识库文件[/dim]")
        return text
    return ""


def input_multiline(prompt_hint: str = "请输入内容") -> str:
    """多行文本输入，输入空行结束，返回合并字符串。"""
    console.print(f"[dim]{prompt_hint}（输入空行结束）:[/dim]")
    lines: List[str] = []
    while True:
        line = input()
        if line == "":
            break
        lines.append(line)
    return "\n".join(lines).strip()


def pause() -> None:
    """暂停，等待用户按 Enter 键返回主菜单。"""
    console.print()
    input("  按 Enter 键返回主菜单...")


def interactive_edit_req(
    reqs: List[FunctionalRequirement],
) -> List[FunctionalRequirement]:
    """交互式编辑指定序号的需求字段。"""
    idx_str = Prompt.ask("输入要编辑的序号")
    try:
        idx = int(idx_str)
    except ValueError:
        console.print("[red]序号必须为整数[/red]")
        return reqs
    for req in reqs:
        if req.index_no == idx:
            req.title         = Prompt.ask("新标题",   default=req.title)
            req.description   = Prompt.ask("新描述",   default=req.description)
            req.function_name = Prompt.ask("新函数名", default=req.function_name)
            req.priority      = Prompt.ask(
                "新优先级", default=req.priority,
                choices=["high", "medium", "low"],
            )
            req.module = Prompt.ask("新模块", default=req.module)
            console.print(f"[green]✓ 序号 {idx} 已更新[/green]")
            return reqs
    console.print(f"[red]序号 {idx} 不存在[/red]")
    return reqs


def interactive_delete_req(
    reqs: List[FunctionalRequirement],
) -> List[FunctionalRequirement]:
    """交互式删除指定序号的需求（内存操作，未持久化）。"""
    idx_str = Prompt.ask("输入要删除的序号")
    try:
        idx = int(idx_str)
    except ValueError:
        console.print("[red]序号必须为整数[/red]")
        return reqs
    new_reqs = [r for r in reqs if r.index_no != idx]
    if len(new_reqs) < len(reqs):
        console.print(f"[green]✓ 序号 {idx} 已删除[/green]")
    else:
        console.print(f"[red]序号 {idx} 不存在[/red]")
    return new_reqs


def interactive_add_req(
    reqs:       List[FunctionalRequirement],
    project:    Project,
    raw_req_id: int,
) -> List[FunctionalRequirement]:
    """交互式新增一条需求到列表（内存操作，未持久化）。"""
    next_idx      = max((r.index_no for r in reqs), default=0) + 1
    title         = Prompt.ask("新需求标题")
    description   = Prompt.ask("新需求描述")
    function_name = Prompt.ask("函数名（snake_case）")
    priority      = Prompt.ask(
        "优先级", choices=["high", "medium", "low"], default="medium",
    )
    module  = Prompt.ask("所属模块", default=config.DEFAULT_MODULE)
    new_req = FunctionalRequirement(
        project_id    = project.id,
        raw_req_id    = raw_req_id,
        index_no      = next_idx,
        title         = title,
        description   = description,
        function_name = function_name,
        priority      = priority,
        module        = module,
        status        = "pending",
        is_custom     = True,
    )
    reqs.append(new_req)
    console.print(f"[green]✓ 已添加新需求: {title}（序号 {next_idx}）[/green]")
    return reqs


def interactive_adjust_modules(
    reqs: List[FunctionalRequirement],
) -> List[FunctionalRequirement]:
    """交互式逐条调整需求的模块归属，并立即持久化。"""
    while True:
        idx_str = Prompt.ask("输入要调整的需求序号（输入 0 结束）", default="0")
        if idx_str == "0":
            break
        for req in reqs:
            if str(req.index_no) == idx_str:
                new_module = Prompt.ask(
                    f"'{req.function_name}' 新模块名", default=req.module,
                )
                req.module = new_module
                db.update_functional_requirement(req)
                console.print(
                    f"[green]✓ 已更新模块: {req.function_name} → {new_module}[/green]"
                )
                break
        else:
            console.print(f"[red]序号 {idx_str} 不存在[/red]")
    return reqs